bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of Monomer on the Transfer Properties of UV Waterless Offset Ink
Authors: Huang Bei Qing , Jia Xiao Xue , Wei Xian Fu , Gu Ling Ya , Fan Biao
Published: October 2012

Four kinds of monomers were chosen to prepare ink to research the effect of monomer on the ink transfer performance of UV waterless offset and improve the printing quality. The rheological properties such as viscosity, yield value, thixotropy and stickiness were tested and the ink transfer equation was built, the ink transfer rate was calculated and the effect of monomer on the ink transfer performance was analyzed through the ink transfer experiment. The research results show that the type of monomers has large impact on the rheological properties of UV waterless offset, so the ink transfer performances with different kinds of monomers are different. And the viscosity, thixotropy, yield value and stickiness of the ink with TPGDA and EOEOEA are little, the ink transfer performance is better.
Computer Aided Generation the Assembly Process Files for Virtual Assembly
Authors: Zhang Xiang Hua , Dai Guo Hong , Xie Feng , Dong Xiao Ying
Published: October 2012

Computer Aided Assembly Process Planning is a method of automatically generating assembly process files with computer. This paper describes an integrated assembly process files generation system for virtual assembly. The objectives of this study are to integrate assembly planning of a product with its CAD model, generate a correct and practical assembly sequence and establish a software system to generate the assembly process files. The method of generating assembly process charts for virtual assmbly is researched. The system framework of generating assembly process charts is been set up. The assembly model information that needed for the assembly process charts generation is analyzed. The expression method of assembly sequence and arithmetic of generating assembly process charts is put forward. A speed reducer is used as an example to check the system.
Educational Reform of Importing Chinese Traditional Color Culture into the Design Education after Cultural Innovation
Authors: Zhang Xi Miao , Zhou Yue Xi , Yang Hong Yan
Published: October 2012

Chinese traditional color culture (CTCC) is an essential foundation of building the human color cultural discipline, also is an important direction of educational reform for perfectly training design talents. Based on interdisciplinary methods, firstly, the paper uses Game theory to analyze the necessity of the knowledge management and cultural innovation for CTCC. Secondly, the paper utilizes the management principles to carry on knowledge management of CTCC, and explains culture innovative ways for it. Finally, we discuss methods of application CTCC and color education reform. Through cultural innovation research of CTCC and the introduction of it into universities design education, it can not only surmount the malpractice of that just has a single modern chromatics without any element of national color culture, but also greatly improve the situation of that the designer has not any principles to abide by.
Performance Simulation Model in Product Life-Cycle Management
Authors: Han Bing , Liu Geng , Wang Hai Wei
Published: October 2012

Automobile, aerospace, and other industrial sectors have evolved over years on product life-cycle management (PLM) systems. Product design and simulation have been long used to support their enterprise-wide engineering activities. This paper describes, in detail, a case study and solution of a simulation process management project called performance simulation model (PSM) .We focus on several research issues, including integration of design process and simulation process, simulation data management, simulation flow management, and the architecture of PSM. A prototype for PSM that allows a unification of design process and simulation process by PDM’s engineering Bill of Material (EBOM) is presented. The prototype has been used successfully for static analysis of transmission system.
Study on Coal Chemical Industry Development Technological Route
Authors: Zheng Hai Ping , Zheng Chen Chen , Shang Jian Xuan
Published: October 2012

The purpose of the paper is to analyze the development trend of modern coal chemical industry and its restrictive factors. Through GE matrix analysis model，this paper puts forward some technical methods on developing modern coal chemical industry for the western China coal area. The better technology for coal chemical industry is using different stages of hierarchical transformation, quality priority utilization patterns that is derived from coal tar, coke oven gas and other high value-added components, improving coal added value in fractions of carbon utilization rate. This technology can not only improve the utilization efficiency of coal resources greatly, but also reduce the pollutants and greenhouse gas emissions effectively.
Potentiostatic Dechlorination of Simulated Cast Iron Artifacts
Authors: Ouyang Wei Zhen , Guo Shao Wen
Published: October 2012

The corrosion and preservation of archaeological iron are affected by many factors, among which the role of chloride ions is particularly important. Chloride ion migration and the choice of optimized potential during potentiostatic dechlorination of simulated cast iron artifacts in alkaline solution were studied by means of potentiostatic polarization. The results showed that the more treatment time and the more negative of the potential, the more was the extraction ratio of chloride ion and the less was the electrical efficiency. The potential was optimized with respect to the extraction ratio of chloride ion and the electrical efficiency, and the optional potential was presented.
Influence of Process Parameters on Mechanical Properties of Composites Fabricated by VARTM Process
Authors: Sun Zu Li , Guo Ming En , Li Jun , Luan Gui Qing
Published: October 2012

Some glass fiber/vinyl ester resin composite laminated panels were fabricated by varying levels of resin temperature, resin bleeding time and vacuum level. Interlaminar shear tests were performed to investigate the effects of process parameters on interlaminar shear strength (ISS) of laminated panel. The optimization of processing parameters was also conducted by employing the method of Artificial Neural Networks (ANN) in order to improve the ISS of laminated panel. The optimized test results are: resin temperature 30°C, resin bleeding time 7s, vacuum level 97KPa, and the result of ISS is 41.2MPa
Performance of Reactive Plasma Cladding TiC Particle Reinforced High Chromium Fe-Based Ceramics Composite Coating
Authors: Wang Li Mei
Published: October 2012

The in-situ synthesized TiC particle reinforced high chromium Fe-based ceramics composite coating was fabricated on the substrate of Q235 steel by plasma cladding process using Fe-Cr-Ti-C composite powder as reactive material. Microstructure of the coating was observed by scanning electron microscope (SEM), the phases were determined by X-ray diffraction (XRD), and the wear resistance was evaluated under dry sliding wear test conditions at room temperature. Results indicate that the composite coating consists of the reinforcing TiC carbide, (Cr,Fe)7C3 eutectic as well as austenite, and is metallurgically bonded to the Q235 steel substrate. The gradient distribution of TiC carbides is observed. TiC particles present in the granular shape in the fusion zone and central zone while present in the dendritic shape on the surface of the composite coating. Hardness of the coating from surface to fusion zone varies a little; the average hardness of the coating is about HV0.2750 which is 3.2 times as much as that of the base. The wear mass loss of Q235 base material is 13 times higher than that of the composite coating.
The Rolling Force Analysis of Closed Ring Rolling High-Neck Flange
Authors: Peng Wen Fei , Liang Jing Jing , Shu Xue Dao , Sun Bao Shou , Xiao Min
Published: October 2012

The rolling force will directly have influence on the size of high-neck flange and whether the rolled part will be shaped successfully. Finite element model of closed ring rolling high-neck flange was established, the effect of process parameters on rolling force and its reasons are analyzed. The results show that, the higher feeding speed is, the larger the amplification of rolling force will be, in addition, rolling force will be reduced slightly with the increase of rotational speed of driving roller, and the influence on the rolling force of compressing roller’s feeding speed is much larger than driving roller’s rotational speed.
Study of High-Speed Plastic Injection Molding and its Mold Structure Characteristics
Authors: Li Hong Lin , Jia Zhi Xin
Published: October 2012

High-speed injection molding technology refers to the injection speed of rotating screw is about 500mm ~1000mm/s during the injection process. It is extensively used in the fabrication of thin and accurate products, for example, packing containers, CD or DVD disc-based panels, smart cards, optic fiber connecters, etc. In this paper, the advantages of high-speed injection molding technology on cost savings, product quality and productivity are presented firstly. Then the mold characteristics on strength, stiffness, precision, used material, heat treatment, the runner system, the venting system and the ejection system are illustrated. A plastic flowerpot by high-speed injection molding is selected as an example to show the high production efficiency.
The Design of Flying-Sawing Machine Control System Based on Fuzzy Control
Authors: Ning Chen Xiao , Zhang Xu She , Zhu Fei , Li Lan
Published: October 2012

The traditional PID regulator can get a satisfactory control effect in many situations. But because of the welded pipe servo cutting system characteristics with not fixed the parameter, variable, strong nonlinear and coupling complex, it is difficult to obtain ideal response in different time, and it is also hard to adapt changes in the environment and the uncertainty of the system. In allusion to the defect of the traditional PID regulator in the welded pipe cutting machine, it is put forward the parameter self-setting fuzzy PID adjustment method and a kind of fuzzy reasoning control rule in this paper. According to the rule, a welded pipe cutting machine control system mathematical model is established and numerical simulation of tailing after the given order jump curve in adaptive fuzzy PID regulator is finished. The simulation results show that: the system response speed is faster than before, the system adjusting precision and stability become well. All of this is hard to realize from traditional PID.
Cross-Wedge Rolling at Pti Nas Belarus
Authors: Shchukin Valery Ya. , Kozhevnikova G.V. , Petrenko V.V.
Published: October 2012

The use of cross-wedge rolling method in metal-working industry allows development of new high-productive low-waste technologies designed to produce shaped billets for subsequent precision forging or other plastic forming processes. The paper deals with spheres of application, advantages and disadvantages of flat and roller cross-wedge rolling schemes. The equipment and tooling for flat cross-wedge rolling are described.
The Research of High-Precision Turntable’s Countertop Tilting Dynamic Testing Technology
Authors: Yang Xiu Min , Lv Shen , Li Li Xia , Liang Jie , Zhang Lei
Published: October 2012

The dynamic tilting of high-precision turntable has a very significant impact on the parameters of measurement and processing during the operation.In order to achieve long-term stability and control the turntable’s dynamic tilting angle at the second level, only improving the mechanical precision of the turntable is not realistic, and it may greatly enhance the cost of the turntable. A precision turntable dynamic tilting test method based on laser and CCD technology is put forward in this paper. The system uses laser as the light source, and uses CCD image sensor to receive the reflected signal of the turntable. According to the amount movement of the laser spot on the CCD target surface and the corresponding geometric relationships, we can measure the inclination error of the turntable. During debugging analysis and practical application, it proves that the system can achieve differentiate accuracy at the second level and meet the needs of online measurement.
Numerical Simulation and Analysis of Tapered Interference Fit of Atomizer Disk
Authors: Lin Shun Hong , Li Chang Jiang , Ding Jian Ping , Chen Dai Chuan
Published: October 2012

The contact analysis model of high speed centrifugal atomizer is created and stress distribution law is obtained by using ANSYS FEM software in this paper. The stress distribution along the axial direction is uneven, the stress of the small end of the taper is large and the stress concentration appears on both ends of the taper. In addition, the factors which influence the interference fit stress are researched and discussed. The interference fit stress is mainly influenced by the shrink range, while the influence from the friction coefficient is very weak. Comparing with the conventional design, the position and value of the stress and deformation of the parts can be known exactly and thoroughly by using the approach proposed in this paper. The method provides a very valuable reference to designing the best shrink range for engineering application.
Software Design of Pulse Generator Based on Single-Chip Computer and CPLD
Authors: Gao Ji , Ma Xiao Fang , Liu Qing Yang
Published: October 2012

The purpose of this article is to study and devise pulse signal source of electrical discharge machining(EDM). The technology of EDM is the necessary key technology in various processing methods. Electrical discharge machining pulse power aims to convert the industrial frequency alternating current into certain frequencies pulse current to supply energy for electrode discharging to removal metal. Pulse power generator, controlled by an embedded MCU, can produce high voltage or low voltage discharge pulse waveform. After the research on characteristics and principles of many pulse powers, a novel, intelligent, high frequency pulse power supply with adjustable amplitude, frequency and duty is developed which has a favorable foreground in engineering application and a great theoretical significance. This paper is to realize the design of EDM pulse signal source based on the method of combining single-chip computer and complex programmable logic devices (CPLD), to satisfy the technical requirement of periodic variable and machining efficiency improving.
Application of Particle Swarm Optimization Based on Support Vector Machine in Multi-Objective Structure Optimization
Authors: Chang Chen Yang , Zhai Jing Mei , Xia Qin Xiang , Cai Bin
Published: October 2012

Aiming at addressing optimization problems of complex mathematical model with large amount of calculation, a method based on support vector machine and particle swarm optimization for structure optimization design was proposed. Support Vector Machine (SVM) is a powerful computational tool for problems with nonlinearity and could establish approximate structures model. Grey relational analysis was utilized to calculate the coefficient between target parameters in order to change the multi-objective optimization problem into a single objective one. The reconstructed models were solved by Particle Swam Optimization (PSO) algorithm. A slip cover at medical treatment was adopted as an example to illustrate this methodology. Appropriate design parameters were selected through the orthogonal experiment combined with ANSYS. The results show this methodology is accurate and feasible, which provides an effective strategy to solve complex optimization problems.
An Improved Pressure Distribution Model of Automotive Wheel’s Radial Fatigue
Authors: Meng Jin , Zhu Ping , Ji Qing Hui , Liu Zhao
Published: October 2012

Radial fatigue life is an important index of automotive wheel. Traditional analysis method neglected the force on flange and confused stable inflation load with dynamic radial load. In this study, a 3D finite element (FE) analysis was executed simulating the inflation and radial press process. Different contact and modeling techniques were adopted to improve the convergence and accuracy. Stable and dynamic pressure on flange and bead seat were distinguished and approximated with different functions. Finally, experiments and comparison were made to ensure the reliability of the method.
Research on the Weld Line's Reduction of Injection Molding
Authors: Shen Fa , Qi Yong , Peng Wen Fei
Published: October 2012

This document describes the principles of the weld line’s generation, formation and points out that the impacts of the product mix, mold structure to the weld line. And a new method of improving products’ weld line was proposed, it adds the plastic materials to the plastic product and loads the insert to the mold to improve the weld line, actually, weld line’s quality was determined not only by adding rubers, loading inserts, but also by other complex methods; However, the approach that was proposed by this paper could solve the weld line’s quality easier than other methods, for it can greatly remove the weld line of the product’s appearance and do not need complicated process parameters. Then the Moldflow software was applied to stimulate the filling process and As a result, the weld line was greatly improved.
Static Analysis of Loading Properties of Small-Size Single-Pylon Cable-Stayed Bridge
Authors: Li Feng Lan , Zhao Yan Hong , Liu Shi Ming
Published: October 2012

This paper introduces the design of a small-size single-pylon cable-stayed bridge to be built in Xingtai city, China. The main structural members of this bridge including box-girder, stayed cables and pylon were selected to meet the requirement of bearing properties and artistic display. The numerical model for analyzing the static properties of the bridge structure was made by the design software MIDAS/Civil. The distribution and ultimate value of internal forces, stress and displacement of these main members are summarized, which provide the basis for calculating the reinforcement and prestressed strands of the bridge.
Innovation Design of Pneumatic Pump Reversing Mechanism Aided by Patent Knowledge
Authors: Yang Zhi Fei , Ma Zhi Yong , Lv Yu Li , Zhang Xu , You Yong Sheng
Published: October 2012

Based on the theory and method of innovative design aided by patent knowledge, this paper analyzes the existing patents about pneumatic pump reversing devices and the other patents, and establishes the library of principles and structures which can achieve reversing function. As there are many shortcomings of existing pneumatic pump reversing devices such as a lot of collisions, big noise and difficult to manufacture, based on the principles and structures which can achieve reversing function, this paper proposes two new pneumatic pump reversing devices to help solve these problems. Compared with the existing pneumatic pumps, the new devices have many advantages, such as simpler structure, less collision, less noise and less cost.
Multi-Objective Topology Optimization Design of a Large Marine Gearbox
Authors: Wei Chao , Tong Shui Guang , Fei Zhong Xiu , Lin Xue Mei
Published: October 2012

Multi-objective topology optimization was studied for layout and structural optimization of a large marine gear-box to minimize its weight, while guaranteeing its strength and rigidity. After determining design domain and multiple load cases, static structure stiffness and the first order natural frequency was defined as optimization objectives. Based on SIMP(solid isotropic material with penalization) method, the topology optimization model of the box structure was set up. Furthermore, by taking into account of manufacturability, the optimal structure was obtained. Comparing to the original design, the optimized box has 7.8% weight reduction, while its structure is more reasonable, indicating the method has certain theoretical and engineering values.
A Fast Insulator-Contour-Detection-Algorithm on Power Transmission Lines Images
Authors: Fang Ting , Jin Xin , Hu Xing Liu , Wang Pei Zhen , Dong Chong
Published: October 2012

The paper proposes a novel insulator-contour-detection-algorithm on power transmission lines images. The insulator-contour-detection-algorithm will have very important academic and practical significance in helicopter or robot patrol system on power transmission lines. The physical characteristics of insulator are analyzed in detail to obtain image features of insulator, and the Hough transform based on gradient information is used to detect the ellipse on the image. After double thresholds processing to the size of ellipse, linear fitting about the center of ellipse, template matching of the center of ellipse based on hausdorff distance, the insulator ellipse is determined. The consuming time of the algorithm is about 50 to 200 ms, so the algorithm can meet the requirement of real-time system. The experiment result approves it.
Dynamics Study and Damping Optimization of Circular Saw Based on Numerical Simulation and Experimental Analysis
Authors: Yuan Ming Hong , Tong Shui Guang , Cai Qin , Tang Ning
Published: October 2012

Serious vibration and noise exists in the circular saw cutting process. In order to reduce the cutting vibration and noise, this paper uses the finite element numerical calculation and modal testing analysis to study the dynamic characteristics of the circular saw blades, obtain the circular saw’s kinetic parameters, such as each order natural frequency, the main vibration mode and damping ratio, evaluate the circular saw system’s dynamic response. Through the optimization of slotted design and experimental analysis, a circular saw with reasonable structure reduces the maximum vibration displacement of 11.1% which increases the circular saw blades cutting quality, prolongs the service life and reduces the cutting noise.
The Rock Failure Mechanism of Air-Decked Blasting in Hole Bottom
Authors: Wu Liang , Zhou Yong , Guo Zhi Hua
Published: October 2012

The application of air-decked blasting technology has enabled the efficient use of explosion energy, which proves that the air-decked blasting technology can overcome many disadvantages caused by column charge effectively, getting ideal explosion effect. Based on the JHC model of concrete damage evolution, the dynamic stress characteristics and failure mechanism of blast-hole near-field about bottom-air-decked charge structure is studied by numerical simulation. Result shows that the failure mechanism of typical elements changes from compression-shear failure into shear-tensile failure gradually with the increase of their position, for the effecting factors of the freedom and the loading from the hole. Comparing the dynamic stress characteristics of different detonating manners, indirect initiation can improve the static function intensity and delay the time of detonation gas, so it is easier to destroy the bottom rock of hole.
Research on the Matrix Kinetic Sculpture
Authors: Yang Li Li , Wang Yan Huan
Published: October 2012

This paper first analyzed the development of Kinetic Sculpture, then proposed the new concept of the Matrix Kinetic Sculpture. By introducing two typical works of the Matrix Kinetic Sculpture, the paper summarized the unique characteristic forms. The paper researched the technology realization of the Matrix Kinetic Sculpture according to one typical case, including the distributed control system and the lifting mechanism. Basing on the Fluid Dynamics theory, the Shallow Water Equations has been applied to the feature design of the Matrix Kinetic Sculpture to enhance its beauty of moving shape. Finally the paper came up with several suggestions for the innovation of Matrix Kinetic Sculpture.
A Watermark Algorithm Based on DCT and M Sequence Scrambling
Authors: Qi Shang Ju
Published: October 2012

Image scrambling is an approach to secure the image data by scrambling the image into an unintelligible format. Based on M sequence which can be produced by a series shift registers, this paper proposes a method of scrambling 2-bit watermark image, in which the effectiveness is controlled by given private keys. The user can change the security keys to generate many different M sequences. In watermark embedding algorithm, block DCT with size of 8×8 is performed on the given image, the relationship between the selected DCT middle frequency coefficients is used to embed scrambled watermark. When extracting watermark from the watermarked image no original image is needed. The simulation results show the proposed scheme can guarantee high visual quality of watermarked image, and the same time attain a good robustness to common image processing and attacks.
Exploring the Effect of Length and Angle on NACA 0010 for Diffuser Design in Tidal Current Turbines
Authors: Mehmood Nasir , Zhang Liang , Khan Jawad
Published: October 2012

Tidal energy is one of the most predictable forms of renewable energy.Tides posses both potential and kinetic energy. Tidal energy can be utilized by capturing potential energy i.e. by means of tidal barrage and tidal fence or by capturing kinetic energy i.e. by menas of tidal current technologies. This study is focused on diffuser augmented tidal turbines that capture the kinetic energy. The power generated by a tidal turbine is directly proportional to the cube of velocity of current flow. The role of the diffuser in diffuser augmented tidal turbines is to help accelerate the incoming current velocity. Consequently, the efficiency of the turbine is significantly increasedby using adiffuser. The research community is investing considerable time and financial resources in thisgrowingdomain. The diffuser augmented tidal turbinesresearch datais rather scarce due to their emerging nature, large and costly research & development setup, startup cost and proprietary issues. The purpose of this paper is to study the effect of length and angle on NACA 0010airfoil for diffuser design. Numerical simulation is carried out to investigate velocity and mass flow rate at the throat. The drag force due to diffuser installation is also calculated.
Experimental Study of Cyclic Loading Behaviors of Impaired Reinforced Concrete Beams Strengthening with Prestressed CFRP Sheets
Authors: Pan Li Yun , Chen Song , Zhao Shun Bo , Li Chang Yong
Published: October 2012

The experimental study was carried out on the cyclic loading behaviors of impaired reinforced concrete beams strengthening with prestressed CFRP sheets. Eight beams in four groups with or without strengthening with prestressed CFRP sheets were tested, in which one or two layers of prestressed CFRP sheet were bonded on the bottom surface of the beams. Based on the analyses of test results, the flexural stiffness and ultimate resistance under cyclic load were effectively enhanced for the strengthened beams with the increasing layers of CFRP sheet, but the ductility of their mid-span deflection was reduced.
Forward and Reverse Driving Noise Analysis of HDM Based on Sound Signal
Authors: Si Hong Tao , Liu Li Jun , Zhang Xue Chang , Li Feng , Xu Ping Jun
Published: October 2012

As there are the errors during the manufacturing and assembling of horizontal driving machine (HDM). The exceptional knocking noise is generated during some products running. The failure rate of product quality is rising as well. The forward and reverse driving noise of HDM was tested and analyzed. The pictures was collected by universal tool microscope. The results show that hot runner is not smooth enough to reduce transferring pressure and increase the shrinkage of worm pouring gate, which lead to slight conical degree of product and pitch deviation at worm pouring gate. As the pitch makes worm inset slightly worm gear when clockwise rotating, the noise and vibration was produced consequently in this direction. The proposals were given, such as strengthening the maintenance of hot runners, controlling and inspecting product conical degree, and optimizing HDM mould and increasing its accuracy, and so on.
Fireproofing Performance Research of Water Curtain
Authors: Yang Zhi Qing , Chen Shun Huai , Zhong Chen Hua , Zhu Xiao Jun
Published: October 2012

The experimentation and numerical simulating have been done to validate the fireproofing performance of big water curtain. The breadth and highness of water curtain is 15m and 12.5m. The dimension of fire space: 18m×15m×12.5m (length×breadth×highness). The dimension of no fire space: 42m×15m×12.5m (length×breadth×highness). The result shows that: water curtain can prevent fire propagating and drops in temperature clearly; the water curtain fireproofing is feasible and effective; flux and thickness of the water curtain and the diameter of drip have major influence upon effect of the water curtain fireproofing. The conclusion of this paper should be helpful for the fireproofing water curtain design.
Applying Bond Graphs for Design Representation of Mechatronic Products
Authors: Wu Fei Lin , He Hua Bo , Deng Yi Min
Published: October 2012

Bond graphs are a domain-independent graphical description of dynamic behavior of physical systems. It is particularly suited for the concurrent design of multidisciplinary systems (including mechanical, electrical, hydraulic or pneumatic components). In this paper, we present our work on the conceptual design representation using bond graphs methodology to support the early stage of product development, especially the conceptual design of mechatronic products. Following the introduction of the fundamental concepts, a advanced notion so called activation is given to present signal systems (e.g. feedback controlled systems). Finally, a controlled DC motor driven system example is used to illustrate the process of model building and analysis of interdisciplinary systems based on bond graphs.
Study of Shells Exterior Surface Flaw Based on CCD Automatic Detection System
Authors: Li Xue Mei , Yu Ai Bing , Ma Lian Jie
Published: October 2012

Having an automated nondestructive test of shells can improve their missile body’s defectiveness identification ability and ensure the manufacturing quality of the weapons and equipment. The CCD flaw detection system of the shell exterior surface is designed by using magnetic particle testing and CCD sensors and by using the feature extraction algorithm an image processing software is programmed and system simulation is carried out. The comparative study results showed that the system has avoided the manual detection error and omissions and the detection accuracy, detection speed and anti-interference capability was obviously improved.
Research of Analysis on Special Dynamic Factors in Product Project
Authors: Bu Zhi Qiang , Xie Zhi Bin
Published: October 2012

This paper adopts the methods of horizontal expansion ideas, multi-angle studies and examples validation to study special dynamic factors in a product project. It is found that the dynamically changing social, policy and economic factors outside the company will produce a strong interference with the normal operation of product project, the actual operating condition of the project also strongly influence on the economic profit and loss in the product project. The results show that the company management, technical and financial staffs can avoid the risk rapidly by taking response strategies, and enterprise can take measure of releasing project development information in advance to create a favorable environment for future product project to be on the market, lead to a good social media for the product project, and reduce the interferences which come from policy and public opinion against this product project operation. The strategies have the significance of promoting a brand image effectively, warning competitors, and misleading competitors.
Structure Improving Design of Compressor Valve Seat Base on FLUENT
Authors: Zhang Jian , Li Xue Bin , Fan Xue Qun
Published: October 2012

Working state of compressor valve plays a key role in compressing. Valve plate opening not timely or even chattering is a major problem in the process of air passed into the cylinder. This paper through the improvement of valve seat to increase the pressure exerting on the valve plate then to reduce or even to eliminate the phenomenon mentioned above is a good try. With the help of software to do simulating calculation of flow field for the contrastive models of the seat channel, proved that the improved structure achieves the goal designed. This may provide a new way to the valve improving designation and make certain significance in practice.
Transient Dynamics Research for Self-Anchored Suspension Bridge
Authors: Xing Bang Sheng , Wang Xue Feng , Li Wei , Wang Ning Ning
Published: October 2012

The Parallel Finite Element Analysis Software ANSYS is used for transient dynamics of self-anchored suspension bridge. The paper studies influence on structure transform under a lotus function and frequency of self-anchored suspension bridge, vehicle together to drive to influence a little bit greatly towards self-anchored suspension bridge structure, difference drive to Self-anchored Suspension Bridge the structure influence smaller, VonMises stress of Suspension Bridge medium node will decrease, when angle frequencies augment, conclusions have instruction function to Self-anchored Suspension Bridge design and construction.
The Technology and Application for 3D Modeling of Bionic Individualized Artificial Bone Outline
Authors: Yang Li Jun , Qi Yan Mei , Wang Li Li
Published: October 2012

Human bone should be individualized modeled and manufactured because of its complex shapes and individual differences. Based on CT tomography images, defect human bone outline was individualized modeled. The technologies of computer image-processing techniques, computer graphics and computer aided geometric design were used in the paper. Also the software of MIMICS was used for medical image-processing. The softwares of Geomagic Studio and UG were used to realize 3D modeling of individualized artificial bone outline and solid modeling in the technology. The results showed that the 3D model met the requests completely, and provided a foundation for the following individualized manufacturing.
State Monitoring of Lathes Based on Load Current Signal
Authors: Yu Yue Ping , Yu Guang Lin , Li Hong Bin , Li Guo Fu
Published: October 2012

According to the characteristics of machine tools such as complex driving chain ,weak signal and enclosed housing,this paper takes horizontal lathes as study objects and selects current signal which is easy to sample as the analytical signal.We collect motor load current signals of idling, cylindrical cutting and end cutting processing state in the experiment to process the condition monitoring based on wavelet denoising and wavelet packet transform. We take advantage of the threshold denoising method to reduce noise of load current signal.Then we use time-frequency analysis methods of wavelet packet transform to extract state characteristic quantity and outstand useful information.So in this paper we monitor the working state of lathes based on the unique advantages of wavelet denoising and wavelet packet transform, and this method can be widely used in various fields of state monitoring.
Research and Design of Automatic Monitoring System for Seedling in Solar Greenhouse
Authors: Zhang You Qiao , Hu Hai Yan
Published: October 2012

An automatic greenhouse seedling monitoring system that can make use of solar energy as power supply to conduct regular monitoring and collect air temperature, air humidity, soil temperature, soil water demand and other parameters is designed. The collected data will be transmitted wirelessly to the upper PC system of host and then, the PC system will compute and process such large amounts of data timely and automatically and carry out corresponding operations for greenhouse through automatic control of feedback signals. With the large capacity of data acquisition, reliable data transmission, humanistic data processing, easy operation, this system will have great practical use. Through the application of this system, it can greatly reduce labor intensity and improve the level of scientific breeding and thus bringing out high quality seedlings to ensure and improve crop yields. This system is feasible and has certain practical value.
Method to Aid Product Innovation by TRIZ, DSM and Patent Knowledge
Authors: Lin Wen Guang , Hou Liang , Lai Rong Shen , Zhao Na , Wu Yong Ming
Published: October 2012

For effectively use patents as information resource for aiding product innovation and avoid patent infringement, a method using patent knowledge based on Design Structure Matrix (DSM) and Theory of Innovative Problem Solving (TRIZ) is proposed. First the couple relationship between different components in objective patent of product is analyzed by DSM. Next deep knowledge of component which has least couple relationship with other components and lower restriction of creation is acquired from patent. Last the component is redesigned by TRIZ according to the design requirements. The method is illustrated by the innovation design of an ATV with shock-absorption function.
Study on the Responsiveness of Production Load-Equilibrium Based Order Allocation Strategy
Authors: Xiang Wei , Yin Jiao , Ye Fei Fan , Song Fa Shuai
Published: October 2012

For industry cluster with multiple suppliers and multiple manufacturers, there exist a network of supply and demand relationship among suppliers and manufacturers. By using the balanced production load among suppliers as the main criteria for decision making, an order allocation model for supply chain with multi-suppliers vs. multi-manufacturers based on production load equilibrium-based strategy is proposed in this paper. In the end of paper the discrete event system simulation is used to verify that the production load equilibrium-based strategy can enhance the supplier's responsiveness effectively，which further leads to a satisfied OTD of manufacturers and the optimization of the whole supply chain.
Condition-Based Maintenance Policy under Imperfect Inspection Using Monte-Carlo Simulation
Authors: Ge En Shun , Li Qing Min , Zhang Guang Yu
Published: October 2012

Condition-based Maintenance (CBM), which can efficiently improve the performance of the deteriorating system, would be influenced by imperfect inspection in practice. Aiming at this problem, a new CBM model under imperfect inspection is presented for deteriorating system, which described by Gamma process. The system is inspected periodically, and a preventive maintenance is performed if the degradation level exceeds a threhold. The inspection is imperfect, that means the measurements contain errors, and the CBM model should take these measure errors into account. The algorithm is shown to estimate the long run cost rate using Monte-Carlo method. Through numerical example, the influence of mesurement error over long run cost is analyzed. Therefore, the correctness and rationality of the model are proved.
Design and Optimization for Industrial Engineering Integrated Experimental System
Authors: Rong Jia Qi , Ding Lu Xing
Published: October 2012

According to the development trend of modern Industrial Engineering and professional talent training goal, combined with the characteristics of modern Industrial Engineering specialty, take full advantage of advanced technology and teaching philosophy, the modern Industrial Engineering teaching experimental system is designed. The experimental system based on a main course of Industrial Engineering experiment, containing a Material Storage System, Access to Material and Transfer System, Equipment Control Software, Management Software and Experimental Data Analysis Software. This modern Industrial Engineering experimental system based on IT technology is presented, which make experiments more flexible and also can give students an intuitive understanding of the production processes.
The Key Technology Research of Building Automation System
Authors: Hu Jun , Hu Huai Wen
Published: October 2012

Contemporary building automation system (BAS) is realize automatization control and management system through to the modern advanced computer technology, communication technology and control technology, and other comprehensive utilization,which can realize the intelligent buildings all mechanical and electrical equipment and the energy equipment of the united network control connection, so as to achieve the whole building environment system of monitoring and management, to it’s best for people to create a comfortable safety, high efficiency and energy saving life environment. In this paper, there’s a deep discussions of the building automation system of composition, development and the present situation; and the key technology of the present situation and development prospects, and we set a plan based on the technology of building automation system LonWorks solutions, and expounds the concrete realization of key technologies of the system, based on the development of the host general much input/output intelligent node module.
Implementation of Transformation Module of Soft-PLC Based on MDI Application
Authors: Chen Chan Juan , Li Long
Published: October 2012

This paper presents a method to achieve ladder diagram language conversion to the instruction list language based on VC multi-document application. The module by analyzing the difference between the series program and parallel program when the ladder diagram language transform into the instruction list language, and according to the special position of the element correction to arrive at a correct instruction list program. The advantage is that this method is simple and practical.
Grid-Based Clustering Algorithm for Sensing
Authors: Zhang Hai Yang , Li Xun , Wang Xiang Ke , Zhang Meng
Published: October 2012

Energy efficiency is considered as a challenge in Wireless Sense Networks because of the limited energy. In this paper a novel grid-clustering sensing algorithm, the SCA (the sensing clustering algorithm) is proposed in order to minimize energy expenditure and maximize network lifetime. Different to all conventional methods, the proposed algorithm clusters nodes depending on the sensing ability, and forms a comprehensive covered and fully connected network. Both of the theoretical analyses and the simulation indicate that the SCA reduces the energy consumption effectively.
Study on the Stability and Structural Optimization of Self-Elevating Platform Pile Foundation
Authors: Chu Xin Jie
Published: October 2012

This paper analyzes the stability and structural optimization of self-elevating platform pile foundation, preliminarily discusses the method of analyzing the bearing capacity of the layer soil foundation, and establishes the numerical computation models for the whole platform, pile, pile shoe, etc. Besides, through these analyses, the pile structure is optimized, and the stress concentration in the joint between pile and pile shoe is reduced. Also, this study is of reference value for the analysis on the self-elevating platform pile foundation design and the platform operation stability.
CAN-Based Parallel Guidance System for Agricultural Machinery
Authors: Meng Zhi Jun , Liu Hui , Fu Wei Qiang
Published: October 2012

The objective of this study was to develop a CAN-based parallel guidance system for small agricultural machinery. The system consisted of field computer, light bar and DGPS receiver. The field computer was developed using PC/104 CPU module, running on the embedded real-time operation system customized by a special development tool. Single chip and CAN controller were selected for guidance light bar design, which used a row of indicator LEDs to guide drivers. Field computer and guidance light bar communicated with each other based on CAN bus. The guidance software running on the field computer was designed in object-oriented manner by integrating embedded GIS development kit. In field test, the average of offline distance was 0.452 meter. The lowest percentage overlap and skip were 3.64% and 3.82% respectively. Results showed that this kind of guidance system was suitable for small-size machinery and could provide effective guidance aid for field operation.
An Induction Motor Stator Core Fault Model Based on Stator Negative Sequence Current
Authors: Liu Hui Zhi , Wang Xu Hong , Wang Kun Yang , Feng Ju Xiang
Published: October 2012

An on-line method is proposed in this work to detect induction motor stator core fault by using stator negative sequence current. According to the existing abc coordinate model, a new equivalent circuit is obtained. In this circuit, the stator core loss each phase in normal state is modeled as core loss resistance symmetrically distributed among the three phases. The stator core loss is increased and is asymmetrically distributed among the three phases when a stator fault happens. The positive, negative and zero sequence equivalent circuits are drawn by a series of analysis of the circuit put forward above. It is demonstrated that there is a good correlation between stator core fault severity and the magnitude of the negative sequence current.
Smart Home Service Composition Research Based on Function Decomposition Tree
Authors: Xu Lin Lin , Xu Jian Liang , Wei Mo Ji
Published: October 2012

To meet the increasingly requirements of users in smart home and improve Web service reusable rate, this paper introduces a service composition method based on function decomposition tree. First, this method used function decomposition tree to describe the component relationship of each service component and atomic service. Second, to realize the automation in the execution of service composition, the tree expanded on logic and timing aspect based on OWL-S. In the experiment, it describes the design of function decomposition tree and its transformation to service composition file.
Simulation of Simplified Three-Dimensional Space Flow Velocity Field in Reservoir on the Condition of Unsteady Flow and its Application
Authors: Fan Shi Ping , Yang Jian Ming , Feng Min Quan , Zheng Bang Min
Published: October 2012

In view of the complexity of the conventional simulation calculation method of three-dimensional flow field for the reservoir, and to analysis of the change of the reservoir’s flow field in flood period, in this paper, based on the unsteady flow numerical calculation, the simulation method for three-dimensional space flow velocity field of the reservoir in flood period was studied and applied to the Wenyuhe Reservoir. First refining the actual extraction of grid, and then having an unsteady flow numerical calculation for the reservoir, finally through layering and stripping the grid, three-dimensional space flow velocity field the reservoir on the condition of unsteady flow has been studied. The results showed that the reservoir velocity along the flow direction is becoming smaller, and surface velocity is fast; with the flow increase gradually, the unsteady flow has a great effect on the flow field of the reservoir’s concave bank. The grid can at will encryption, so the calculation precision can be effectively controlled and the process of simulation is easy to be programmed. The research results can simplify the complexity of the reservoir for three-dimensional numerical simulation, and up to providing theoretical support for reservoir flood control.
Loudspeaker Nonlinear Distortion Signal Instantaneous Frequency Measurement and Analysis
Authors: Wang Yu Tian , Wang Hui , Zhang Qin
Published: October 2012

Loudspeaker is a strongly nonlinear system which is associated with several situations such as electronic, magnetic, mechanical and acoustic. Recently, most of the methods used to measure and analysis loudspeaker are based on the FFT. Unfortunately, traditional Fourier transform based signal analysis method usually causes meaningless results when it is used to analysis non-stationary and nonlinear signal. In this paper, we use Hilbert-Huang transform (HHT) to review the instantaneous frequency of loudspeaker output. Experiments demonstrate that the distortion of loudspeaker can be recognized as intrawave frequency modulation caused by wave profile deformation. Then a novel nonlinear distortion measurement method is proposed which can reveal more accurate and physical meaningful characteristic of loudspeaker.