bluuebunny/crossref_metadata_2025 huggingface dataset:
Development of a Measuring System for Stiffness Evaluation of Micro Torsion Bar
Authors: Liu Chun Jie , Zhu Bing Shou
Published: October 2010

For the micro torsion bar used in inertial navigation, the torsional stiffness should be evaluated precisely. A computer-controlled instrument for stiffness measurement based on static measuring principle was introduced for variant section micro bars, The main hardware of the system includes a precision motorized rotary stage and a torsion sensor. The stepping resolution of angular displacement is 0.00250, the measurement accuracy of moment is 0.05mN•m. The measurement software was programmed on the LabVIEW platform for virtual instrument. The measuring experiments indicate the device can be used for automatic testing of stiffness of the torsion bars with high accuracy and efficiency.
Ball End Milling of Glass with Inclined Cutter
Authors: Qin Yu Xia , Jia Ji Hong , Wei Zhi , Gu Mei Lin , Li Tong Hui , Wang Yu Tao
Published: October 2010

This study deals with the effect of tool–surface inclination on cutting forces in ball end milling .Since glass undergoes almost no elastic deformation, the shape of the cutter in glass machining has a larger influence on surface finish than that of metal machining. Model of geometry and tilt tool milling process is established. A double helix micro-flute ball end mill made of cemented carbide is used in the groove milling tests with radius 0.5mm at a helix angle of 30°. The rotational axis of the tool is inclined to improve the surface finish. The cutting processes are modeled, and 3-direction cutting forces are measured via three groups of experiments to show the effect of the tool inclination on the machined surface. Several micro grooves, then, are machined with the crack-free surfaces to prove efficiency and surface quality in the milling process.
Tool Wear in High Speed Milling of SiCp/Al2024 Metal Matrix Composites
Authors: Wang Y.J. , Zhou Ming , Huang S.N. , Zhang Y.J.
Published: October 2010

This paper presents an experimental study in high speed milling of metal matrix composites (MMCs). Machining tests were carried out on a high speed milling machine by using TiAlN coated tools and chemical vapour deposition (CVD) diamond coated tools. The cutting tool wear was investigated using an optical microscope and a scanning electron microscope (SEM). The experimental results showed that flank wear is the dominant tool wear mode and abrasive wear and adhesive wear appears to be the main wear mechanism. The build-up edge (BUE) exists during the machining process at a certain speeds. Cutting speed is a dominant factor affecting the flank wear. Generally, high cutting speed lead to severe tool wear, but there seemed to be a certain cutting speed which will cause the least tool wear. Furthermore, there exists a cutting speed limit for both TiAlN coated tools and CVD coated diamond tools in high speed milling of MMCs, beyond which the edge chipping will cause the tool failure very soon.
Studying Technology of Collaborative Virtual Prototyping of Louver under ADAMS Platform
Authors: Liu Feng Chen , Yang Lan Yu
Published: October 2010

As a kind of active thermal-control technology, emissivity of the radiation surface greatly can be changed effectively by electric thermal-control louver, the heat exchange of the internal and external of the satellite can be adjusted, then heat-transfer characteristics of the controlled object could be adjusted timely, it reacts to the external change flexibly and precision of the thermoregulation is high. Model of louver was built r by ADAMS, then model of virtual prototyping was built during the system design stage and simulation of electromechanical joint was carried out by making use of both ADAMS and Matlab. Machinery characteristic property of system was derived from ADAMS, and joint simulation was realized by Simulink module of Matlab. Results indicates that machinery component of the louver can satisfy the technology index request completely, and has some characteristics such as simple structure, light weight, low power dissipation and high reliability.
Research on Accuracy Verification for Three-Dimensional Measurement Machine with Non-Contract and Surface Scanning
Authors: Niu Shu Guang , Yang Lan Yu
Published: October 2010

One kind of standard model equipment of three-dimensional coordinate measurement machine with non-contract curved surface used for verification solves accuracy standardization problems for the three-dimensional coordinate measurement machine with non-contract curved surface, then balls that are in different positions are used to replace collecting space point coordinates, next measurement errors of space line segment can be obtained through specific analysis and calculation. One new kind of accuracy verification method for the three-dimensional coordinate measurement machine is realized.
Finite Element Simulation and Analysis of Strain and Strain Rate of Material in Micro-Milling
Authors: Sun Ya Zhou , Liu H.T.
Published: October 2010

In order to analyze the dynamic mechanical property of steel 4340 during its micro-milling, finite element method is used to simulate the process of elastic-plastic micro-milling. The curves of logarithmic strain, plastic strain, strain rate changing as cutting time goes on are shown in the process of simulation, with the distribution of logarithmic strain, plastic strain, equivalent plastic stain and stain rate analyzed. The results provide a basis for the further reaserch of materials’ dynamic mechanical properties during their cutting process.
New Support Fast Generation and Application in Stereolithgraphy Apparatus
Authors: Qian Bo
Published: October 2010

In sterolithgraphy rapid prototyping, the support can constraint the parts deformation, and avoid a lot of problems such as collapse, shift and imbalance of the parts. It is of great importance in improving the overall efficiency of rapid prototyping technics software through enhancing the support generation efficiency. Based on this, this paper proposes a discrete-marking support algorithm for treatment of processing on manufactured part model of all Triangle-based discrete-marking on the support plane. The new mesh discrete-marking and automatic support generation algorithm has been successfully applied to the Sterolithography apparatus (SLA). Practical application indicates that the new support generation algorithm improve considerably the support technics efficiency.
Dynamic Property Simulations of Hydraulic Cylinder Based on Simulink
Authors: Jin Xiang Shu , Rong Bin Hui , Tang Xue Zhong
Published: October 2010

The paper established the mathematical model of plunger-type hydraulic cylinder, founded the simulation model in the SIMULINK environment and solved its unit-step response, gave the hydraulic cylinder design parameter and the medium character’s influence to its unit-step response, summarized the intrinsic relations between parameters and the time domain index, provided the theory basis to optimize the hydraulic cylinder dynamic property. Conducting the research of the hydraulic cylinder system using SIMULINK has the outstanding characters such as the simple programming, the direct-viewing modeling, the highly effective simulation, it may reduce the design cycle greatly, reduce the design cost, enhance the product performance. The research conducted suggests this method may promote to the research of all the hydraulic package and hydraulic system.
Modeling and Simulation of Cop Slide Groove Mechanism Based on Virtual Prototype Technology
Authors: Chang De Gong , Zhang Cun Sheng , Yu Ning Ning , Yao S.L.
Published: October 2010

In this paper, the cop slide groove spatial linkage mechanism was studied by utilizing the 3D software UG to build models and assemble cop slide groove. Then the assembled models were imported into ADAMS to finish the simulation thereof. The results prove the designing achieves preconcerted movement and meets the requirements. In the meantime, the feasibility of the mechanism was proved.
Research on Information Construction of SME and Information Talent Cultivation
Authors: Wang Shi Bo , Wang Cheng
Published: October 2010

There are many problems on informationization construction in the small and medium-sized enterprise, how to deal with, it is must be considered and solved to promote enterprise informationization construction. Through analyzing the problems in small and medium-sized enterprise informationization, the paper discusses the informationization construction countermeasures, especially the importance of informationization talent for SME and the selection of informationization talent.
Effects of Splicing Chamber Parameters and Splicing Air Pressure on Splicing Performance
Authors: Chang De Gong , An Cong Feng , Yang Z. , Liu L.P.
Published: October 2010

In this paper, the splicing chamber flow and influencing factors of splice as well as the structure parameters of splicing chamber and flow were analyzed with JMP/Fluent soft. The optimal angle between the air inlet and untwist cavity of the splicing chamber was obtained. Theoretical support is provided for the design of splicing chamber, and it has important significance to improve the design quality of the splicing chamber.
Rapid Tooling of Mixer Mixing-Blade of Concrete Mixer
Authors: Xing Pu , Yin Xiu Jie , Zhao Jing Yun
Published: October 2010

The mixing blades of concrete mixer, is a relatively complex spatial surface, which is difficult to manufacture. The high cost of traditional mold making does not apply to new product development and experimental studies. So, this paper presents a rapid manufacture method of balde mold, which using the UG software for blade parametric design, and then sub-cutting it to calculate the section coordinates. According to the coordinates, the steel plate had been cut and welded into a mold, through which, the blades can be pressed. Because of its convenient and low-cost, the method is particularly applicable to the occasions of experimental research.
Active Service Using Acquaintance Nodes in Intelligent Manufacturing Environments
Authors: Wang R.
Published: October 2010

An active service architecture called AAS (active service based on acquaintances) for intelligent manufacturing environments was proposed. The proposed architecture exploits stable relation and resourceful nodes, called acquaintances, which perform active services in the manufacturing network. The AAS architecture recognizes node heterogeneity in terms of mobility and capability. We analyze the characteristics of AAS architecture and operations for optimal system performance. By showing that AAS outperforms broadcast-based solutions in manufacturing environments, we validate that AAS is a flexible and adaptable architecture appropriate for dynamic manufacturing environments.
Research on Machined Surface Quality for High Speed Turning Titanium Alloy Membrane Discs and Optimization of Cutting Parameters
Authors: Zhang Wei , Zheng Min Li , Cheng Ming Ming , Shi Wen Yong
Published: October 2010

By high speed turning experiment of aerospace engine titanium alloy membrane discs, it researches cutting parameters influence on machined surface roughness of titanium alloy membrane discs, meanwhile measures and analyzes machined surface topography. Machined surface roughness multi-linear regression empirical model of high speed end-surface turning titanium alloy membrane discs is established. Using cutting parameter combination obtained from cutting parameter optimization makes process verification experiment of high speed turning titanium alloy membrane discs. The results show that the established machined surface roughness empirical model of high speed turning titanium alloy membrane discs is credible in statistics, and the process verifying experiment effect is good by using optimized cutting parameters.
Preparation and Performance of Porous Membrane Materials Using the Sol-Gel Method
Authors: Zhang Peng , Chen Gang , Guo Bin , Cheng Shu Kang
Published: October 2010

Porous membrane materials have the universal use, so it is widely considered as one of the most promising high-tech. Different membranes have different preparation methods. In this paper, the sol-gel method was applied to prepare silica particles using ammonia as catalyst of TEOS hydrolysis, then silica particles were mixed with polyethylene, and finally silica particles were dissolved with hydrofluoric acid, leaving holes, the porous materials were obtained. The results show that: (1) In this experimental conditions, the size of silica particles are closely related to the water content of the system. (2) The size of silica particles affects the agglomeration of particles. The size of silica particles are smaller, the agglomeration is more obvious. (3) As the content of PE increases, the porosity of the samples decreases continuously; in theory, when the content of silica is low, the hole will be greater.
Study on the Model of Surface Toughness Forecasting in Powder-Mixed Pulse Electrochemical Polishing Based on Neural Network
Authors: Zhao Xue Song , Fang Min
Published: October 2010

In view of the difficulty in the selection of technological parameter in power-mixed pulse electrochemical polishing, a scheme based on neural network for the selection of technological parameter was put forward. The model of Surface toughness Forecasting was established. After being compared with experiment data, it was found that the experiment results and expected results share much similarity. It indicates that the system is able to predict the roughness of surface accurately under a given condition. Therefore, it can cast some light to practical power-mixed pulse lectrochemical polishing.
Study on Phosphorus Adsorption Dynamics of Fly Ash Filtering Material
Authors: Cao Shi Wei , Jing Zhao Qian , Zhang Xiao Zhong
Published: October 2010

The adsorption characteristic to the phosphorus in polluted water was discussed between two different calcium content fly ash biological filtering materials. The result showed that the under a certain temperature, the adsorption characteristic correspond with Langmuir equation. The maximum phosphorus adsorption capacity reach 93.7％and 63.5％; When the temperature was higher and contact time was longer, the adsorption capacity was more, but in 3 hours, the adsorption equilibrium was both got. The phosphorus adsorption capacity related with the calcium content and the surface adsorption power result by vast pore in material interior has strengthened the adsorption action. Level-one variable dynamics model could be used to describe the absorb process.
Research and Application of Stamping Technique of Automobile Covering Panel Parts
Authors: Guo Xiu Li , Lu Huai Min , Xu Wen Xuan
Published: October 2010

The stamping technique of the automobile covering panel parts is analyzed, and a collaborative design method combined the automobile covering panel parts design with the stamping technique design is put forward in this paper. The body side covering panel parts of a light truck is taken as an example and the reasonable segmentation and the structure design of the side covering panel parts are conducted from the respect of the stamping technique, which will enable it to satisfy the requirements of punching and drawing. The developmental budget of the moulds of the body side covering panel parts shows that the number of the stamping moulds needed after applying the stamping technique will decrease by 19 sets than before, which can save the cost about 4.45 million RMB Yuanm.
Process Parameters Optimization of Ballscrew Manufactured by Cold Rolling
Authors: Cui Feng Kui , He Xuan Jing , Li Yan , Han Zhi Ren
Published: October 2010

To optimize the process parameters of cold rolling the finite element model of metal plastic flow in cold rolling was carried out based on the cold forming principle of ballscrew and rigid-plastic finite element theory. The adaptive mesh refinement was utilized to improve calculation accuracy in large plastic deformation zone. Using lagrangian algorithm the processing of cold rolling is numerically simulated by DEFORM-3D. The appropriate revolution speed is got by analyzing different simulation results such as the maximum stress and maximum strain and flow velocity etc. under different revolution speeds. The appropriate transmission ratio is got by analyzing different simulation results such as the maximum stress and maximum strain and flow velocity etc. under different transmission ratios. The research results provide evidence for process parameters optimization. At the same time those research results lay a foundation of further study of forming mechanism.
On the Study of Electric Vehicle Regenerative Braking
Authors: Han Zhao Lin , Wang Yang Yang
Published: October 2010

Based on the importance of regenerative braking system (RBS) to EV’s sustained travel mileage and prolonging life of mechanical brake. This paper introduces the characteristic and principle of regenerative braking system, at the same time analyses regenerative braking pattern and brake energy recovery, emphasize on the distribution of brake force. At last, this paper provides good base for developing specific regenerative braking system and control strategy.
Effect of Heat Treatment Process on Gear Distortion
Authors: Wang Hong Mei , Ma Xiao Chun , Wang Xiao Juan
Published: October 2010

Gear noise is the main part of mechanical transmission noise. There are many factors influencing gear noise, and gear accuracy will exert very important role on forming gear noise. A big noise was created from the second follower gear during transmission testing. Cumulative pitch error was found to be out-of-tolerance extremely after detecting metallurgical structure and distortion. Moreover, gear contact accuracy is low .Gear distortion was controlled by adjusting the parameters of carburizing and quenching and improving loading mode of gear furnace charge. Meanwhile, contact accuracy and the gear life were also improved.
Malfunction Signal Analysis of NC Machine Tool Gear Based on Kalman
Authors: Luo Yong Shun , Yang Yong , Li Yu Zhong , Wang Xiao Jun
Published: October 2010

Malfunction prediction is a trend of NC machine tool malfunction diagnosis development and the diagnosis accuracy is heavily dependent on the real and online acquisition of malfunction parameters. Gear malfunction is one of main mechanical malfunctions, and it is very meaningful to forecast its malfunction. The shock vibration of gear malfunction is non-stationary, so it should be processed by time frequency algorithms. Kalman filtering and Laplace wavelet are time frequency algorithms. Klaman filtering is self-adapting algorithm, and can filter noise in real-time. Laplace wavelet can obtain malfunction parameters by correlation filtering when correlation parameter k is the maximum. The proposed technique features two appealing advantages, which include self-adapting Kalman filter-based time-frequency algorithm and a Laplace wavelet-based parameters extraction. A set of simulating gear vibration data was used for verification. It provides a quantitative and more efficient means for obtaining the malfunction parameters to malfunction forecasting system.
The Modeling and Implementation of Virtual Enterprise Based on Multi-Agent System
Authors: Wang Jian Bin , Pang Jun , Jiang Ben Chi
Published: October 2010

According to the characteristics of virtual enterprise operating, the multi-agent technology is introduced into virtual enterprise. The management and manufacturing cell of different functions in the virtual enterprise is designed to an independent Agent. The framework of the virtual enterprise is built by the multi-Agent. The operating of the framework of the system is achieved by the development platform JAFMAS of the system of the multi-agent. This concept proposed is not only agreeing with the development direction of the virtual enterprise, but also promote the educational evaluation development for application development of the multi-agent technology.
The Research of Network Congestion Control Based on Multi-Agent
Authors: Wang H.B. , Yang H.X. , Wang D. , Wu J.
Published: October 2010

For network congestion situation, analyze the harm and the reasons for it. To carry out a framework for network congestion control system design based on this Multi-Agent. In a multi-agent function design, carry out a reasonable arrangement, to establishment a framework of network congestion control system for multi-agent system, resolve the problem of congestion and inefficiencies in the operation of local network, ensure the normal operation of the network and improve network efficiency.
Effect of Cu2+ Doped in Sol on Properties of Sealed Film on Anodized Al Alloy
Authors: Zhou Qi , Wang Xin , Zhang Li Fang , Ma Xin , Li H.B. , He C.L. , Zhao P.
Published: October 2010

The corrosion resistance of anodic oxide film sealed with alumina sol can improved. Cu2+ was put into the alumina sol so that antibacterial property was endowed to the sealed film. Composition, morphology and corrosion resistance of sealed film doped with Cu2+ were studied by DSC, EIS and SEM etc. The film sealed by doping Cu2+ in sol has less and narrower crack on the surface than the one without Cu2+. The gel without Cu2+ has more chemical reaction and phase transition than that with Cu2+ in the heating process observing from the DSC curve, which results in more cracks on the surface of sealed films without Cu2+. Sol doped with Cu2+ can enhance corrosion resistance inferred from the polarization curve, in a way. The films sealed by sol with Cu2+ have a good antibacterial on Staphylococcus aureus. The antibacterial rate is more than 99%. The results show sol doped Cu2+ not only improve corrosion resistance but also have antibacterial property.
Ultrasonic and Vibration Signals Processing for Computing Dynamic Modulus of Elasticity of Intact and Damaged Wood
Authors: Ni Song Yuan , Xu Hua Dong , Wang Li Hai
Published: October 2010

To effectively and quickly estimate the dynamic modulus of elasticity (MOE) of wood, ultrasonic and vibration test techniques are employed to measure the intact and damaged wood specimens. The ultrasonic and vibration signals in time domain are obtained respectively. Then, the time of flight is received by picking up the position of ultrasonic head wave and it is used to compute the dynamic MOE of wood. Simultaneously, the frequency response functions of wood are received by analyzing the frequency domain signals transformed from time domain using Fourier formulas, and they are used to pick up the intrinsic frequencies to calculate the dynamic MOE measured by vibration test. Finally, the correlations of dynamic MOE tested by these two methods are discussed. The research results show that it is feasible to estimate the dynamic MOE of wood via ultrasonic and vibration signal processing.
A 3D Reconstruction Method Based on Binocular View Geometry
Authors: Liu Zhong Yan , Wang Guo Quan , Wang Dong Ping
Published: October 2010

A method was proposed to gain three-dimensional (3D) reconstruction based on binocular view geometry. Images used to calibrate cameras and reconstruct car’s rearview mirror by image acquisition system, by calibration image, a camera's intrinsic and extrinsic parameters, projective and fundamental matrixes were drawn by Matlab7.1;the collected rearview mirror images is pretreated to draw refined laser, extracted feature points, find the very appropriate match points by epipolar geometry principle; according to the camera imaging model to calculate the coordinates of space points, display point cloud, fitting space points to reconstruct car’s rearview mirror; experimental results show this method can better restore the car’s rearview mirror of 3D information.
Fabrication of Refined Isometric Crystals of Semi-Solid Al7Si2RE Alloy
Authors: Xie Shi Kun , Yi Rong Xi , Zheng Xiao Qiu , Gao Zhi , Xia Xiang
Published: October 2010

The fabrication process of refined isometric crystals of semi-solid Al7Si2RE alloy is discussed, and the remelting microstructure of Al7Si2RE alloy with isothermal holding at 580°C is also researched. Experiment shows that the casting temperature, the casting size, the casting mold and the casting method will make great effects on the fabrication of refined isometric crystals alloy microstructure. Slope copper mold casting at liquidus temperature can be used in preparing excellent non-dendritic microstructure billet; its remelting microstructure is uniform, refined isometric crystals with the average diameter of 44.2um and the average roundness of 2.08.
The Prediction of Fiber Diameter of Spunbonding Nonwovens by Using Neural Network and Empirical Statistical Methods
Authors: Zhao Bo
Published: October 2010

In this paper, the empirical statistical and artificial neural network methods are established. We present a comparative study of two modeling methodological for predicting the fiber diameter of spunbonding nonwovens from the process parameters. The radial basis neural network, which has good approximation capability and fast convergence rate, is employed in this work, and it can provide quantitative predictions of fiber diameter. The effects of process parameters on fiber diameter are also determined by the ANN model. The results show the artificial neural network model yield more accurate and stable predictions than the statistical method, which reveals that artificial neural network technique is really an effective and viable modeling method.
A New Red Emitting Phosphor Mg2SnO4: Eu
Authors: Wang Xiao Jun , Zhou Xiao Chun
Published: October 2010

Mg2SnO4 was adopted as the host material of a new red emitting phosphor. Lumin-escence properties of the europium-doped magnesium tin oxide prepared by the low temperature solid state reaction were investigated under 395nm excitation. Under 395 nm excitation, the Mg2SnO4: Eu phosphor exhibits novel red emission at about 613 nm which is assigned to the 5D0 → 7F2 electric – dipole transition. Furthermore, the emission transition 5D0 → 7F2 has been found to be more prominent over the normal orange emission transition 5D0 → 7F1.
The Sensitivity Analysis of Reliability about Large Winding Hoist Cylinder Shell
Authors: Li Y.X. , Zhou G.L.
Published: October 2010

There are many factors that affect the safety and reliability of large winding hoist’s cylinder shell structure，and most of them are of more or less randomness，But,in the reliability analysis of tube shell structure, For factors on the tube shell vary from degrees of structural failure. Therefore, It is of great significance to study the size of the various factors that affect the reliability of the tube shell structure. In this paper, the large winding hoist cylinder shell reliability sensitivity were calculated and analyzed using the latest achievements of reliability sensitivity calculation. The results show that，the mean square deviation of strength ( ) and stress ( ) are larger, the tube shell structure becomes more insecure, and the strength ( ) to tube failure rate of the shell structure is getting much larger than the stress ( ). The intensity ( ) on the tube shell is greater than stress ( ) on the impact of structural failure， respective proportion is 82.24% and 17.76%. we will strictly control the intensity’s change in designing, manufacturing and using of large winding hoist cylinder shell structure, and As far as possible to the direction of the large fluctuations; For the stress( ), will as far as possible so that the direction to small fluctuations. This theoretical research and practical calculation of the structure have a larger theoretical significance and practical value in studying hoist cylinder shell structure on design, manufacture and use.
Failure Modes Analysis of Electromagnetic Flowmeter Based on Grey Relational Analysis
Authors: Zhou Zhen , Li L.B. , Qin Y. , Ma D.Z. , Niu B.
Published: October 2010

Firstly this paper introduces gray relation analysis, and then it draws various reasons of electromagnetic flowmeter malfunction in combination with data provided by one company. And the paper calculates the probabilities of the various reasons adopting classical statistics, and equalizes these failure rate data to get sequence difference, and then obtains grey incidence coefficient and correlation degree. Then the paper sorts these correlation degrees to confirm the influence degree of the failure modes. Finally, the bleaching information required is obtained.
Microcystin-LR Degradation of Titanium Dioxide Process by Solar/ S-Doped
Authors: Liu Cheng , Chen Wei , Wang Man , Cao Zhe
Published: October 2010

The removal efficiency of microcystin-LR in water and the influencing factors by combined process of solar irradiation and S-doped TiO2 were studied in detail, in which S-doped TiO2 photo-catalyst with high sunlight activity was prepared by acid catalyzed hydrolysis method using thiourea as sulfur source. The experiment results showed that MC-LR could be more effectively oxidized by the solar/S-doped TiO2 process than by solar/ TiO2 process, whose removal effect were about 70% and 55% after 40 min’s irradiation, respectively. Pseudo-first-order model could be used to simulate the oxidation process. Degradation rate could be greatly affected by the concentration of H2O2, the optimum concentration for the system of solar/S-doped TiO2 was found to be 20mg/L, which was 5mg/L higher than that of solar/TiO2 system. Humic acids decreased the degradation rate, and solar/S-doped TiO2 process more easily affected, for the humic acids could not only compete with molecular MC-LR for radicals but also adsorb part of sunlight which can excite radical with TiO2.
The Research of Bionic Robot Dynamic Target Tracking System
Authors: Wang P. , Ye X.F. , Kang S.C. , Xin J.L.
Published: October 2010

In order to improve the quality of the bionic robot vision tracking, the new automatic tracking algorithm system is proposed in this paper. Based on the completed system hardware design and implementing scheme, the scene noise is removed by adaptive wiener filtering. Through the improved sequential particle filter algorithm, the dynamic target tracking is realized. The experiment result shows that the improved algorithm system still can lock the dynamic target accurately under the condition of that the outer contour of target changing and the partial occlusion existing.
Research on Integration of PDM and ERP System
Authors: Wang Cheng , Wang Shi Bo , Zhang Feng Ling
Published: October 2010

Product Data Management system and Enterprise Resource Planning system is an important information system for enterprise, the effective integration between them is the key of enterprise-wide information. In this paper, through comparative analysis of system functions, application objectives, application scope, product structure, etc, we identify the differences and relationships between the Product Data Management system and the Enterprise Resource Planning system, and further analyze and discuss the integrated content, integrated model and integrated framework between them.
Comparative Studies of Activated Carbon-Attapulgite and Zeolite-Attapulgite Composite Adsorbent on Congo Red Adsorption
Authors: Weng Zhang , Jing Z.Q. , Kong Yu , Shen Wei
Published: October 2010

This study investigated the adsorption of congo red by activated carbon-attapulgite composite adsorbent (ACA) and zeolite-attapulgite composite adsorbent (ZA) from aqueous solution. All of these two adsorbents have mesopores and macropores structure different from general activated carbon adsorbent with micropores distribution through analysis of mercury porosimeter .The research focused on the effects of adsorption capacity in four aspects: contact time, solution pH, temperature and initial dye concentration. The results indicated that ACA had higher adsorption rate in the first 30 min contact time and ZA had higher removal percentage because of the difference on the pore size and total pore area. There was little difference on removal percentage of ACA and ZA when pH changing from 1 to 13 and the adsorption rate exceeded 94% in all kinds of pH condition. The removal efficiency of congo red on ACA and ZA increased from 92% to 95% with increase of temperature from 293K to323K. The reduction rate of congo red decreased with an increase in the initial congo red concentration for ACA and ZA.These results suggest that all of the two adsorbents is a potential low-cost adsorbent for the dye removal from industrial wastewater.
Experiment and Study on Real-Time Testing System of Fertilizer Amount Based on ATS665 Precision Seeder
Authors: Wang K.Q. , Qu Fa Yi , Zhao Bin
Published: October 2010

Fertilizer amount real-time for the precision seeder system is researched in order to prevent from occurring abnormal fertilizer and breaking fertilizer phenomenon during seeding. Real-time amount of fertilizer operated was indirectly measured through indirect method of measurement, and optical-electrical sensors are used to monitor fertilizer evacuation and jammed conditions. Real-time testing error for the fertilizer amount is less than 6.48 percent and false alarm probability is zero through production experiment in farm. Both abnormal fertilizer and breaking fertilizer problems are solved systematically in actual production.
The Investigation of Tool Wear in High Speed Cutting INCONEL718
Authors: Zhou J. , Han R.D.
Published: October 2010

As the main method of high efficiency machining Ni-based superalloy, high-speed cutting can not but intensify the cutting-tool wear. So, it is very necessary to find the rule of cutting-tool wear in high-speed cutting superalloy, especially, the effect of cutting-tool wear on the cutting force, cutting temperature and surface roughness of machined workpiece. In this paper, the PCDTiAlN cemented carbide insert is used in the experiment, the value of cutting-tool wear and the corresponding cutting force, cutting temperature and surface roughness of machined workpiece is measured. It indicates that the cutting force, cutting temperature and surface roughness of machined workpiece is changed corresponding the cutting-tool wear changes, and cutting-tool is serious, for example, the crater wear expands quickly; the boundary wear is obvious.
Location Decision of City Logistics Facility Based on Fuzzy Synthetic Evaluation
Authors: Zhang Yan , Kwon Oh Kyoung
Published: October 2010

The concept of city logistics facilities is to help establish more efficient urban logistics systems for both private companies and society, reduce the total social and environmental costs of urban freight transport and improve the urban traffic conditions on the road network. This study adopts a fuzzy synthetic evaluation method to determine the optimal location of city logistics facilities.
Model of End Milling Force Based on Undeformed Chip Surface with NURBS in Peripheral Milling
Authors: Pu Xionig Ying , Liu Wei Jun , Zhao Ji Bin
Published: October 2010

A new cutting force model for peripheral milling is presented based-on a developed algorithm for instantaneous undeformed chip surface with NURBS. To decrease the number of the differential element, the contact cutting edges of end-milling cutter with the part and the chip thickness curve are represented by NURBS helix, and the instantaneous undeformed chip is constructed as a ruled surface with the two curves. The cutting force generated by the edge contact length and the uncut chip area. Using the cutting coefficients from Budak[1] , the cutting-force model verified by simulation. The simulation results indicate that new cutting-force model predict the cutting forces in peripheral milling accurately.
Agent Based State Monitor Framework for RP Manufacture Process
Authors: Yao Yuan , Liang Jian Yong , Wang Fang , Zhou K.
Published: October 2010

Providing web service interface in the function layer is becoming a technology trend. Recent research in computer integrated manufacturing system is focused on integrating this with automation technology. This paper presents an integrated framework for monitoring the state change during rapid prototyping and manufacture (RP&M) processes. Web service interface is exposed in the device control layer and grouped into an aggregation service in the upper layer. In order to wrap the heterogeneous structure of different type of Rapid Prototyping (RP) device and systems, an agent based software framework is developed to reduce the complexity of data transmission and provide an isomorphic web service interface for status-monitoring and event-apperceiving. Compare to the OPA UA specification this framework provides a more simple realization in RP&M process.
The Researchment for Tiny and Embedded Solid Error Check Algorithm of CAD Model
Authors: Hu Chao , Xu Ming Hua
Published: October 2010

To solve many data error problems which produced by CAD model during the data conversion process in the environment of collaborative designment, based on CAD data quality standards, geometry and topology characteristics of CAD model, data errors such as tiny solid and embedded solid were described. By analyzing the geometry feature of model, the volume algorithm is proposed for the tiny solid. With the introduction non-linear theory, the check problem of the embedded solid is transformed into quadratic programming problem. Using VC++ and UG/Open API develop the error check system, and check algorithm is verified valid through typical instances. with supply a unified interface, check algorithm can be easily applied to various CAD platforms.
Research on Drilling Process of Nickel-Based Super-Alloy
Authors: Wu Jian , Han Rong Di
Published: October 2010

Nickel-based super-alloy belongs to difficult-to-machine materials, its machinability is low. To find out the difficulties of drilling nickel-based super-alloy, it is necessary to study the drilling process. The study on the drilling process of nickel-based super-alloy Inconel 718 is discussed from two aspects, drilling deformation and drilling forces distribution. For studying the drilling deformation characteristics and influence laws, the drilling chip specimens are obtained by using self-made drilling quick-stop device. Then, the empirical formula of shear angle is also given. Finally, the drilling forces distribution is studied. Results shows that: drilling deformation decreases when the distance to chisel edge, drilling speed and feed rate increases; drilling deformation of Inconel 718 is larger than AISI 1045; the ratio of torque and thrust force on the lead cutting edge is 29%~33%, 74%~77%, respectively; the torque and thrust force of Inconel 718 is about 1.8~2.3 times than that of AISI 1045.
Evaluation of Regional Technological Innovation Efficiency Based on Principal Component Analysis and DEA
Authors: Chen Hong Mei , Wu Zhi Yong , Jin Wei
Published: October 2010

Regional technological innovation ability is increasingly becoming the determining factor to attain an international competitive advantage for the areas, as well as to achieve regional economic growth and development. But in the same time of raising the regional technological innovation ability, it is also necessary to continuously improve the efficiency of regional technological innovation, so as to increase the resources efficiency. We evaluate the efficiency of regional technology innovation for China's 30 provinces and municipalities using comprehensive evaluation model combined principal component analysis and DEA. According to evaluation results, we think that the overall efficiency for regional technological innovation is at the low level, and most areas is at the stage of increasing returns to scale, that account for a common problem of insufficient investment in the process of regional technological innovation.
Simulation Experiment on Friction Coefficients during Warm Deep Drawing of Magnesium Alloy Sheet
Authors: Zhang Ting Fang , Xie Shi Kun , Huang Ju Hua , Guo Zheng Hua
Published: October 2010

In sheet metal forming, friction condition between sheet metal and mold is a very important problem for it influences the formability and the variation of stress, strain and thickness of sheet metal, and so on. Simulation experiments had been done to measure friction coefficients online at punch and die rounded corners under different process parameters during warm deep forming of magnesium alloy sheet. The results made it clear: temperature shows the greatest effect on friction coefficients, the effect of blank holding force (BHF) secondly, and no significant effect of lubricant on the friction coefficients. The friction coefficients at die rounded corner are larger than those at punch rounded corner. The dynamic changed friction coefficients models with temperature and BHF were fitted by the experimental data respectively, and they were added into simulation software through further development by user subroutine VFRIC using FORTRAN language to improve the accuracy of the numerical simulation.
The Research of Tissue Engineering Scaffold about Spinal Cord Injury
Authors: Cai Jian Hui , Shi Ting Chun , Hu Xian , Chen Mei Hua
Published: October 2010

The rapid development of tissue engineering brings new hope to the neurological function recovery after spinal cord injury. The three-dimensional structure of scaffold is a key factor to treat spinal cord injury in tissue engineering method. In this paper, low-temperature deposition manufacturing (LDM) is discussed and basic process about scaffold forming is brief related. The principle of low-temperature deposition manufacturing and some important process parameters were studied. Some experience values are obtained from experiment. The biological environment in vivo was proposed as an important basis for the design of spinal cord scaffold. Then the spinal cord scaffold is separated into gray matter and white matter induced function area by the separate layer of low porosity and small pore size. The experiment results show that the big pores of scaffold are round and regular. The scaffold includes a large number of irregular pore structure, and good penetrating. The scaffold porosity of 86.38% could well meet the needs of the high porosity.
Simulation Analysis and Test of Trafficability on Forest Patrolling and Fire-Fighting Vehicle
Authors: Ba Xing Qiang , He Yong Ming , Zhu Bao Quan
Published: October 2010

Forest safety and the application of virtual prototyping technology were investigated. Forest patrolling and fire-fighting vehicle was surveyed and mapped. 3-dimensional model of the vehicle was established, and the trafficability of the vehicle was simulated and analyzed. At the same time, the vehicle trafficability were tested. The limiting trafficability of the forest patrolling and fire-fighting was found by analyzing and evaluating of the vehicle.
Analysis of the Competitiveness of Service Outsourcing Demonstration City in China
Authors: Wang Wei , Cheng Jun Feng
Published: October 2010

This paper establishes competitiveness evaluation model of the service outsourcing city from six aspects and 36 indicators. Then take 20 service outsourcing demonstration cities as research objects, and use entropy weight method and the standard deviation method to calculate out comprehensive competitiveness scores of service outsourcing city. At last we analyze the present situation of the outsourcing model city and puts forward development proposals.
The Operational Efficiency Analysis of Listed Companies in Road-Transportation Industry of China Based on DEA
Authors: Qi Xiu Hui , Zhang Tien An , Wu Zhi Yong , Wang Wei
Published: October 2010

Taken the 20 road-transportation listed companies in China as the research object, the author evaluated the efficiency of its operation with data envelopment analysis (DEA), and found that only 35% of the listed companies is DEA (CCR) efficient and in the best state of production, overall operational efficiency of others is not high, in which too many inputs are the main factor of affecting the efficiency of business operation. The author put forward the means of optimizing of resource allocation and improving the operational efficiency of the listed companies.
Research of Product Frame Model Based on Reverse Engineering
Authors: Zhao Hong Mei , Yang Ge
Published: October 2010

To make product frame model with good size parameters and assembly accuracy, 3D measurements for current product model are established by using three-dimensional laser instrument based on reverse technology. The actual measured data are handled by using CATIA software to obtain the profile size of product’s cross, vertical section, which is then translates into CAD format. Then the similarity ratio of the product frame model is determined based on similarity theory. Product model parts are produced and assembled by using laser processing technology. Practice shows that the product framework model has good size accuracy and assembly performance, which can improve facture efficiency.
Experimental Study on High-Speed Milling Performance of 316 Stainless Steel
Authors: Liu Can , Wu J.Q. , Zheng W.F. , Li G.H. , Tan Guang Yu
Published: October 2010

In order to obtain the variational regularity of force in high-speed milling 316 stainless steel with carbide tools, an orthogonal milling test was done in machining center, and force signal was processed and analysed using Matlab software. Spectrum analysis showed the energy of horizontal force in high-speed milling transfered to the harmonic frequency, variance analysis showed that both of the axial depth of cut and the feed significantly affected the absolute mean of horizontal force, while the effect of speed was insignificant, indicating it be best to adopt milling parameters as small depth of cut, small feed and high speed. The results of this study can be used to guide high-speed milling of 316 stainless steel.
Research on Surface Reconstruction Method Oriented Rapid Prototyping
Authors: Zhong Shan , Yang Yong Qiang
Published: October 2010

The rapid prototyping system usually uses triangulation data of STL format. For the scattered point cloud data, this paper adopts the data preprocessing technique and proposes the triangulation optimization algorithm based on extended approximation method to establish the STL data model. The test results show that, for automotive covering parts and other complex surfaces, it gives the repair algorithm of point cloud data and the optimization algorithm of maintaining continuous smooth surfaces. It overcomes the STL data model shortcomings of cracks, broken face and overlap, and achieves the accurate modeling of the mesh surface. Also, the relevant algorithm runs fast. Moreover, the reconstruction of the surface model has a high precision and it benefits the exchange of data between RP systems.
Virtual Machining Process System for Marine Diesel Engine Key Parts
Authors: Zhu C.S. , Xu Ling , Fang X.F. , Zhang S.W. , Wang H.Y.
Published: October 2010

The virtual machining process system is built based on VERICUT platform to simulate the whole procedure of machining marine diesel engine key parts. It changes the traditional method of test-cutting, shortens development time and ensures the safety of the actual machining process system. Examples of machining marine diesel engine frame and cylinder cover are done to verify the effectiveness of this system. It is demonstrated that it has a wide application future and spreading value in the production of marine diesel engine key parts and the whole manufacturing industry.
Study on Object Function of Milling Insert Impact Disrepair Based on Stress Field Analysis
Authors: Cheng Yaon An , Wang Li Quan , Wu Ming Yang , Li Zhen Jia
Published: October 2010

This article takes the waved-edge milling insert (the rake face is curve plane) developed by Harbin University of Science and Technology as an example, as the goal of minimal impact disrepair, the optimization object function of the milling insert grooves is studied. Based on the force density function of the 3D complex groove milling insert, we have the finite element analysis on the stress fields of different cutting parameters, and have fuzzy synthetical judgement on the stress fields with fuzzy mathematic theory. We build the object function relation between the fuzzy synthetical judgement results and cutting parameters of the impact disrepair, so to have groove design optimization. All these studies provide the theoretic basis for the groove exploitation and the cutter disrepair which is the key problem in the automatization production and groove optimization.