bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on the Effect of Rape Seed Germination Based on Environment Friendly Seed Coating Mixing Different Potassium Fertilizers
Authors: Wang En Wen
Published: December 2012

Studying on the effect of different potassium fertilizers (KCl, KNO3, KH2PO4, K2SO4) based on pre-development environment friendly seed coating, which using chitosan as the main material. The results indicated that: 1) the best ratios of 4 potassium fertilizers in environment friendly seed coating , which was KCl, KNO3, KH2PO4, K2SO4, were from 0.025% to 0.05%, from 0.025% to 0.05%, from 0.025% to 0.075%, 0.025% respectively. And the high-to-low effect of coating rape seeds, based on environment friendly seed coating mixed different potassium fertilizers, was KNO3 > KH2PO4 > K2SO4 > KCl; 2) when mixed with environment friendly seed coating and used to coat rape seed, the synergistic effect between K and N in KNO3 was better than K and P in KH2PO4, and the above-mentioned two synergistic effects were better than K and S in K2SO4; 3) when the percent range of total weight of three elements (N, P, K) in environment friendly seed coating from 0.01% to 0.03%, the effect of rape seed germination was improved remarkable.
Total Amount Control of Pollutant and Allocation of Total Permitted Pollution Discharge Capacity
Authors: Rao Cong Jun , Zhang Qing , Gan Jian Ping
Published: December 2012

Total permitted pollution discharge capacity (TPPDC) is a special scarce resource. The fairness and effectiveness of allocating TPPDC are the basis of pollutant gross control, pollution treatment and environmental sustainable development. Studies have demonstrated that free allocation, public auction and sale on wances are tree efficient and useful methods to allocate TPPDC. This paper presents widespread theoretical and applications problems for the study on these three methods in order to introduce the research history and the newest research trends of allocating TPPDC. Moreover, assumptions, main ideas, and conclusions of literature related to these three kinds of methods are reviewed and commented.
Design and Realization of Desktop Balance Reflection Ball System
Authors: Wang Gang , Wang Yan Quan
Published: December 2012

At present, no intellectual games beneficial to both human left and right brain development simultaneously can be observed within China, oriented to which a design of desktop balance reflection ball system is realized in this thesis. Several main contents can be noticed. Firstly, with the participants' manual push torsion as the power source the direction of the handle control and the one of the game table swing movement of the system are made reverse on the principle that the cam swing exerted by the push and pull movement of the link rod is driven by the swing of the tee iron; thus, the control direction of the ball is made reverse with the one of human thinking inertia. Secondly, the game platform is made into a structure freely adjustable labyrinth pattern, and for convenience of operators of different heights the support unit is equipped with a height-adjustable triangle bracket. Thirdly, several softwares such as AUTOCAD is applied to this system design in the establishment of the 3D stereo model, through which the efficiency and quantity of the design are improved and the development circle of the system prototype is thus shortened.
The Experiment Design and Research of a Special Liner Wear
Authors: Qu Li Gang , Li Jian , Su Dong Dong
Published: December 2012

This thesis imitates the practical working environment of certain special bush and accomplishes the design of parts wear test device. By the development of PLC operating system, it combines the tester and principal computer and achieves the automatic control of experimental procedures and the supervisory control of experimental tasks, establishing relatively complete data acquisition channel and accurately analyzes fatigue property of parts by the fitting liner wear curve of the least square method. This promotes the development of special the experiment of fatigue property of parts.
Three-Dimensional Design and Analysis of Multi-Spindle Drilling Device
Authors: Chang Yun Peng , Duan Lei
Published: December 2012

Design and analysis of multi-spindle transmission device helps to improve design quality and efficiency of aggregated machine tools and other automatic mechanical devices. This paper analyzed principles and structures of two multi-spindle transmission mechanisms adopted extensively in mechanical area. A three-dimensional prototype of the multi-spindle drilling device designed for machining six holes simultaneously was built with Pro/Engineer software. The device adopted multi-spindle reciprocating transmission mechanism. The application of the software involved creating simplified model used for motion analysis, performing kinematic analysis of the mechanism, establishing measures of main parameters and executing optimal design of key parts.
Analysis on the Contact Interaction between Thresher and Corn Ears Based on the DEM
Authors: Yu Ya Jun , Yu Ji Yang , Li Qing Long , Yu Jian Qun , Fu Hong
Published: December 2012

The corn threshing process is a complex process of contact interaction between thresher mechanical parts and corn ears. The paper analyzed this process with the discrete element method (DEM). A method was set up to calculate the contact forces between thresher mechanical parts (boundary) and corn ears. The conditions for corn kernels threshing were established as well. On this basis, we developed the corn threshing simulation software, and simulated the corn threshing process using the software. The simulation results are close to the actual situation, and the results verify the feasibility and effectiveness of the new method. Thus we have laid the foundation for using the DEM to analyze the corn threshing process and putting forward a novel method for the optimal design of the corn thresher.
The Application of Graph Theory Method in the Problem of Traffic Patrol Police Service Platform’s Site Selection
Authors: Meng Ji Xian , Lu Xin Zhong
Published: December 2012

In order to maintain good social order, we need set some traffic patrol police service platforms at the vital communication line and important position of the city. In this paper, we will use graph theory method to deal with the problem of traffic patrol police service platform’s site selection for a fixed unban area. When there are some emergency events happened in the fixed area, these traffic patrol police service platforms should make corresponding response and close vital communication line immediately. So we also need to establish a optimal mathematics model to obtain a reasonable arrangement for closing the vital communication line. Meanwhile, building a scientific index system will help us to measure whether these arrangements reasonable or not.
Design and Analysis on Pneumatic System of 2RZ-J200 Air-Suction Precision Seeder
Authors: Luo Ju Ying , Li Quan Gang , Wu Xiao Feng , Xu Ke Sheng , Cao Xi Ming , Li Shi Fang
Published: December 2012

This paper described the importance of industrialized grow seedlings. In order to realize the modern factory forestry development request, precision seeder is the very key part of mechanized seedling production line. Based on the related work requirements of seedling production line, we have designed pneumatic system of precision seeder, analyzed the principle and selected suitable components of pneumatic device. This paper provides a theory basis for the further research.
Study on the Online Diagnosis System of Induction Motor with Broken Bar Fault Based on LabVIEW
Authors: Tan Xing Wen
Published: December 2012

This paper addressed a new approach of online diagnosis of induction motor with broken bar fault based on advanced digital filtering, ZOOM-FFT and acquiring slip by Rotor Slot Harmonics (RSH) techniques, the slip rate is accurately estimated from the precise measurements of the harmonic components of rotor and the power supply frequency, which enables us find the characteristic spectrum of a rotor with broken bar from the stator current spectrum. Thus, the motor broken bar fault can be detected by checking the existence of the characteristic spectrum. The proposed method overcomes the drawback of traditional current spectral analysis approaches. In particular, this paper addresses the problem that the side lobe spectral components are covered by the fundamental frequency and the noises. And the reliability of the fault detection method is improved. The experiment results have shown that the improved method is able to detect small broken rotor bar fault with good application value.
Parametric Modeling of the Tooth-Surface of Spiral Bevel Gears with Spherical Involute
Authors: Wang Bai Chao , Yang Zhao Jun , Hong Zhao Bin , Liu Jin Song , Wang Ying
Published: December 2012

Based on the the principle of generating line of spiral bevel gears, a new modeling method about spiral bevel gears is proposed. Mathematical pattern of spiral bevel gears with spherical involute is developed about two parameters. A kind of simulation modeling software of spiral bevel gears with spherical involute is developed in matlab-guide environment. The data of tooth-surface are collected and calculated in the simulation system according to the machining parameters of a pair of gears which are established. It is convenient to establish accurate solid models of spiral bevel gear by obtained data points. Thus it can provide a feasible and effective way for CAD/CAE modeling and is modeled perfectly in computer so as to simulate the platform of virtual manufacture and meshing analysis.
Control Performance Analysis of SR S/G System Based on FEM
Authors: Song Shou Jun , Zhang Man , Liu Wen Jie , Han Ze Xiu
Published: December 2012

Switched reluctance machine (SRM) has many outstanding advantages, and can be widely used in many electromechanical applications. However, it’s relatively difficult to analyze the control performance of SRM due to strong nonlinearity of the electromagnetic field. In this paper, the performance of SRM is analyzed by finite element method (FEM). Firstly, the simulation model of a 4-phase 8/6 pole SRM is built, and then the steady-state and dynamic simulation are carried out. In steady-state simulation, the magnetization and torque characteristics are obtained by parametric method. In dynamic simulation, the performance, include current and torque curve, under both motoring and generating mode are given. The simulation and analysis results are useful for performance optimization of SRM.
Direct Yaw-Moment Control through Optimal Control Allocation Method for Light Vehicle
Authors: Zhu Bing , Guo Li Tong , Zhao Jian , Gao Fang , Pan Zhen , Ren Lu Quan
Published: December 2012

This paper presents a Direct Yaw-moment Control (DYC) strategy to prevent light vehicles from entering the unsteady state and improve the handling stability. A novelty of this work is the ability to achieve superior performance through the lower workload of the actuators by using the optimal control allocation method to distribute the active yaw moment. In the main-loop, the DYC controller is designed based on the classical PID algorithm with the yaw rate and sideslip angle feedback. Simulation tests are carried out on the conditions of sine steering and single lane change steering. Results indicate that the working potential of each actuator can be fully utilized and a significant improvement in handling stability can be achieved from the DYC system.
The Application of Fuzzy Control in the Foam Fire Extinguishing System
Authors: Lv Ke Ming , Huo Meng You , Li Fang Yi
Published: December 2012

In order to achieve the precise control of the compressed air foam proportioning on the fire engines, in this paper, the PIC microcontroller and the fuzzy control algorithm are used to design the microcontroller-based foam proportioning hybrid fuzzy control system. Taking into account the system cost and ease, we use the software to implement the fuzzy control of DC motor. The controller learns from the experience of skilled operators, and forms fuzzy control rules, finally we identify a number of important control parameters in this paper. The experimental results show that the fuzzy control system can achieve precise control of the mixing ratio
Adaptive Control of Hybrid Electric Bus
Authors: Yan Bin , Hu Yan Qing , Zhang Shu Mei , Yan Ting , Yang Lin
Published: December 2012

Hybrid electric vehicle was powered by motor and engine. So making a good energy management strategy to torque split between motor and engine is very important. A static control strategy is not suitable for all drive cycles and all driving habits. This paper designs an adaptive control strategy for parallel HEV. In order to regulate the SOC balance of batter, the adaptive control strategy can update itself through analyzing the data obtained from previous driving cycle. Adaptive control strategy was tested in driving cycle of BC_CTC, the result prove that this method is effective.
The Quality Mode Control of New Air Conditioning Product-Service Systemdevelopment and its Application
Authors: Tian Hai , Yang Yi , Miao Rui , Wang Shen
Published: December 2012

Based on the methodology and tools of quality control mode, this paper mainly focuses on six stage divisions of a new air conditioning product-service system development, such as concept stage, plan stage and design stage etc. It introduces with an example the application of quality control methods of each stage of this mode, and points out that the quality control methods have internal relationship and they should be organic combined to use to form a system.It not only shows that quality control mode is very effective concept and methodology in manufacturing industry, but also can be learned lesson from for more and more product-service systems to improve the quality control and product quality.
The Slipper Shoe Mounting Hole Calculation Method Limitation Analysis for Spherical Swashplate Type Axial Piston Pump
Authors: Su San Mai , Wang Chao , Chen Yong Qin
Published: December 2012

Take conical cylinder spherical swashplate type axial piston pump as research object, the calculation method limitation of slipper shoe mounting hole which located in mounting plate is analyzed. First of all ,the motion characteristics and the trace of slipper shoe is derived, then,based on above results, the sipper shoe mounting hole size current calculation methods in engineering and it’s limitations is analyzed,the conclusion is that: current design methods is parameter averaging method and also is an approximate method, in theory is not accurate and in engineering is unreasonable. In order to deign the slipper shoe mounting hole accurately, this paper recommends the most reasonable method is using slipper movement envelope to determine its shape and size.
The Study of the Rotor Dynamic Balance Caculation for Engine
Authors: Jiao Yan Hui , Ren Zhong Gui
Published: December 2012

The paper analyzes the rotor imbalance of cooling fan for the engine, and come to influence coefficient per unit quality. Fan imbalance in the rotor will cause severe vibration of the fan and its supporting equipment. We can easy count the practice balancer cooling fan rotor. This method is very simple.
Design and Research of Cam for Paper-Separation Mechanism
Authors: Xiong Teng Fei , Zhang Chun
Published: December 2012

A kind of paper-separation mechanism of packing machine for medicine was introduced in this paper. A new parametric equation of cam profile is designed on the basis of the kinematics rules of suction nozzle. Model building of cams are accomplished by using software SolidWorks.
High Precision Ultrasonic Ranging System for Mobile Robot Navigation
Authors: Gao Yan , Jia Li Na , Wang Bo , Liu Li Hua , Huang Li Ming
Published: December 2012

This paper introduces ultrasonic ranging system which can be applied to avoid obstacle and navigate for mobile robot .This system is composed of AT89S51 single chip microcomputer ,ultrasonic transmitting circuit, ultrasonic receiving circuit, amplifying and filtering circuit , peak value time detecting circuit, environment temperature compensation circuit. The method of echo peak time detection point is used to eliminate the error. It is proved that The maximum range of the system is 10 meter and maximum measurement error can be controlled to± 2 cm or so. This system has such merits as rapid corresponding, high precision, high performance price rate.
A Numerical Study of an Injection-Compression Molding Process by Using a Moving Grid
Authors: Dwiyantoro Bambang Arip
Published: December 2012

A numerical study for the simulation of melt in an injection-compression molding process by using moving grid is proposed in this paper. The fully three-dimensional Navier-Stokes equations are solved together with the front transport equation using a front capturing approach. Different from previous studies, the proposed model can take the movement of cavity through a moving grid approach. The melt filling of a disk is conducted to illustrate the applications of the proposed numerical model with several computations under different processing conditions. The numerically predicted results show the influence of compression time or compression speed in determining the molding pressure and the melt temperature.
Evaluation of a Three-Parameter Equation in the Multiaxial Fatigue Life Prediction
Authors: Xiong Ying , Cheng Li Xia
Published: December 2012

Based on Fatemi-Socie model and Smith-Watson-Topper model, estimated fatigue lives were compared between conventional fatigue parameters method and three-parameter equation method. Predicted fatigue life of three different structural metal materials including 16MnR steel, 7075-T651 aluminium alloy and AZ31B magnesium alloy were checked. It is demonstrated that the three-parameter equation gives predicted results as well as conventional fatigue parameters method.
Damage Detection of Filament Wound Composite Cylinder Using Ultrasonic Waves
Authors: Gu Lei , Gong Ke Zhuang , Gao Gui Yun , Li Zheng
Published: December 2012

This paper experimentally investigates the damage detection of filament-wound (FW) thick-wall composite cylinder using ultrasonic waves. The multi-layered cylinder has a 20 mm-thick steel liner with an inner radius of 421 mm, an 11 mm-thick layer of unidirectional carbon fiber reinforced composite that is wound on the steel liner, and a 2.15 mm-thick layer of coating over the composites. Damages are pre-manufactured in different wall depths of the cylinder. The main damages to be detected include the defects in the composite layer, the interface debonding between the composite layer and the steel liner, and the change of thickness of the steel liner due to corrosion. To interrogate above mentioned damages, the longitudinal waves are excited using an ultrasonic transducer in pulse-echo mode along the radial direction of the cylinder. The continuous wavelet transform (CWT) is used to analyze the reflected-ultrasonic signals in order to obtain the Time-of-Flight (ToF) and the amplitude ratio of different interfaces. Based on the ToF and amplitude ratios, the location and size of the damages are identified and the thickness of the steel liner is determined. Experimental results show that the ultrasonic pulse-echo technique combined with the CWT is feasible in damage detection of multi-layered filament-wound composite cylinder especially when a coating layer exists.
Leaching of Heavy Metals from Municipal Solid Waste Incineration (MSWI) Fly Ash Using Sulfuric Acid
Authors: Zhang Hai Ying , Ma Guo Xian
Published: December 2012

Municipal solid waste incineration (MSWI) fly ash, a must by-product in incineration of municipal solid waste (MSW) combustion is of environmental concern due to its enrichment in heavy metals (Ni, Cd, Cu and Pb). Extraction using sulfuric acid is a conventional method of safe treatment of fly ash. In this work, influence of sulfuric acid concentration and liquid to solid ratio on removal efficiency of the four heavy metals was investigated. It was found that Removal ratio followed the decreasing sequence of Cd > Cu > Pb >Zn for acid extraction using sulfuric acid, quite different with that sequence of Pb > Cd > Cu > Zn for extraction using nitric acid. Sulfuric acid was efficient in removing Cd and Cu, but less efficient in removing Ni and Zn. Compared with nitric acid, sulfuric acid was less effective in removing Pb, Cu and Ni.
Investigation on Dynamic Responses of Manipulator with Multiple Clearance Joints
Authors: Bai Zheng Feng , Wang Xing Gui , Zhao Yang
Published: December 2012

The existence of clearance in joints of manipulator system is inevitable and the movements of the real manipulator are deflection from the ideal manipulator for the clearances. In this study, the effects of clearance on dynamic responses of real manipulator system with multiple clearance joints are investigated using a computational methodology. By applying the nonlinear continuous contact force model, the contact dynamics model in joint clearance is established and the friction effect is considered with the help of Coulomb friction model. Then the dynamics simulation is carried out and the dynamic characteristics of manipulator system with multiple clearance joints are investigated. The results show that the clearance leads to degradation of dynamic performance of the real manipulator system.
Algorithm for the Extraction of Optimal Gripping Force Range with the Robot Gripper
Authors: Shin Dong Hwan , Jeong Choong Pyo , Park Tae Sang , Kim Yoon Gu , An Ji Nung
Published: December 2012

The arm of robot consists of a manipulator and an end-effector. The end-effector is doing a specific work such as welding, picking and placing, sawing, deburring, suction, etc. with for the specific object of robot system. Here we are focused on the gripper among end-effectors. If the gripper generates the excessive gripping force, then the gripped material can have a permanent deformation. On the other hand, if the gripping force is too small, then the gripped material can be slip from the end-effector, drop to the floor and will get damaged. Therefore, it is important to use the adequate gripping force of the gripper. In this paper, we suggest the algorithm which is easy to automate, for the extraction of optimal gripping force range, with the estimation of frictional coefficient and young’s modulus.
Industrialization Research and Realization of Preprocessing in Rough Set Based on Similar Prediction
Authors: Yao Dun Hong , Peng Xiao Ning , He Jia
Published: December 2012

In every field which needs data processing, the sparseness of data is an essential problem that should be resolved, especially in movies, shopping sites. The users with the same commodity preferences makes the data evaluation valuable. Otherwise, without any evaluation of information, it will result in sparse distribution of the entire data obtained. This article introduces a collaborative filtering technology used in sparse data processing methods - project-based rating prediction algorithm, and extends it to the areas of rough set, the sparse information table processing, rough set data preprocessing sparse issues.
Parameterized Modeling and Dynamic Modal Analysis of Conjugate Cam Beating-up Mechanism
Authors: Tang Xue Mei , Tang Xin Xing
Published: December 2012

Taking the conjugate cams beating-up mechanism as an example to carry out three-dimensional parameterized design with Pro/Engineer secondary development accords to the equations of conjugate cams curves derived by the analytical method. Using the finite element software ANSYS the dynamic characteristic of beating rocker has been analyzed. And through the calculation the modal distribution and modal shapes of beating rocker are provided. It could provide references for design of future high-performance beating-up mechanism.
The Damage Evolution Analysis of Fiber-Eutectic
Authors: Ni Xin Hua , Ma Ying Chen , Gu Qing Hua , Wang Ling Ying
Published: December 2012

Based on micro-mechanics and finite element theory, the stress field of fiber-eutectic was researched by using the ANSYS program. First, in order to study the interaction of fiber and interphase, fiber- eutectic can be simplified as representative volume cell. Then we use ANSYS program to construct the cell model and simulate the tensile stress field. The results show that the stress is uneven in the cell and the elements near the interphase with high stiffness will damage first. At last the stress change and damage evolution route are simulated by using the element birth and death technology.
Analysis of Transverse Sections of Unilateralism Carbon Fiber Reinforced Resin Matrix Composites in Shot-Beam Shear Conditions
Authors: Zhang Chun , Wu Wen Juan
Published: December 2012

This study investigates the transverse section property of unilateralism carbon fiber reinforced resin matrix composites in shot-beam shear conditions. Carbon fiber composites made in China and a composite T300 made in Japan were tested. Analysis was made for these composites on the shear strength data and the appearance of macro characters. Possible sequence of failure initiation and propagation of each composite was proposed by the SEM with optical microscopy observations of failed specimens. The result revealed that the interfacial property is the most important factor responsible for the failure mode of unilateralism carbon fiber composites, and the Chinese carbon fiber composites need to improve the interfacial property for wider use.
Research on Vibrating Machine Rolling Bearing Multi-Point Pitting Corrosion Fault Diagnosis
Authors: Guo Bao Liang , Duan Zhi Shan , Zheng Jian Xiao , Shi Li Chen
Published: December 2012

Aiming at the discrimination problem of the multi-point pitting corrosion fault for the vibrating machine rolling bearing, the vibration model of the multi-point pitting corrosion fault was built for the vibrating machine rolling bearing with inner ring and outer ring based on Hertz contact theory and the discrimination criterion of the multi-point pitting corrosion fault was proposed. At the same time, the theoretical model was simulated and the experiment was finished in the vibrating sieve. The experiment results are consistent with the theoretical analysis results. The results show that there is the obvious difference from the fault characteristic spectrum of the rolling bearing multi-point pitting corrosion for the vibrating machine and the rotating machinery. There is an obvious amplitude modulation phenomenon for the outer ring pitting corrosion fault of the vibrating machine rolling bearing, but there is not the amplitude modulation phenomenon for the outer ring pitting corrosion fault of the ideal rotating machinery rolling bearing. There is a slight amplitude modulation phenomenon for the inner ring pitting corrosion fault of the vibrating machine rolling bearing and but there is the obvious amplitude modulation phenomenon for the inner ring pitting corrosion fault of the ideal rotating machinery rolling bearing.
Application of PAN-Based Carbon Fibers as Brush Anode in Microbial Fuel Cells for Higher Electricity Production
Authors: Zhang En Ren , Niu Jun Le , Liu Lei
Published: December 2012

PAN-based carbon fiber was used to prepare brush anode, and its electrochemical performance was investigated in a tubular microbial fuel cells. Experimental results showed that electricity production can be enhanced by using brush anode, with maximum current (up to 25 mA) much higher than that of reported microbial fuel cells using other types of carbon materials. Heat treatment is demonstrated to be an effective method to further increase the performance of the brush anode, not only reducing the start-up time of the microbial fuel cells, but also increasing the duration of electricity production and polarization properties.
The Research on Electronic Transport Based on Quasi-One-Dimensional Nanostructures
Authors: Feng Li Feng , Yin Hai Tao , Yao Cheng Bao , Wan Wei Long
Published: December 2012

This paper briefly reviews the nature and application of carbon nanotubes, and the properties of carbon nanotube transport. Pure carbon nanotubes and doped carbon nanotubes at different temperatures are prepared for measuring temperature chemical vapor deposition (CVD). The transport properties are measured and the results are compared. It proves that the experiment error, and the theoretical simulation are consistent with the experimental results. Multi-layer carbon nanotubes verify the conductivity in the CVD growth of carbon nanotubes at room temperature IV curve and low bias nonlinear as shown in the scattering theory. The conductance of carbon nanotubes changes with the temperature decreasing when semiconducting. Carbon nanotubes doped with metal atoms the Fermi level, and thus reduced the conductance of the barrier, making it conductively to guide the performance by a significant modulation.
Analysis on Welding Crack of Subcritical Power Station Boiler Platen Superheater Header
Authors: Feng Yan Ting , Zheng Xiang Feng , Xu Xue Xia , Dong Guo Zhen , Wang Yong , Sun Peng
Published: December 2012

Welding crack analysis was carried out on tee joint crack of boiler platen superheater header (12Cr1MoV) of subcritical power station applying finite element analysis,microanalysis, mechanical properties test, chemical composition analysis, metallography examination and SEM observation etc. Results indicated that the improper structure, the original welding defects, higher welding heat input, excessive welding residual stress and improper heat treatment led to cold crack and reheat crack ,then induced to the leakage failure while operating.the welding crack originated at the original defects, connected with reheat cracks during propagation and led to leakage finally.
The Analytical Characterization of Nonlinear Strain Rate Dependent Triaxial Braided Composites
Authors: Zhao Yong Li
Published: December 2012

The polymer constitutive equations are implemented within strength of materials based micromechanics method to predict the nonlinear, strain rate dependent deformation of polymer matrix composites. Based on the constitutive polymer model developed by Goldberg, nonlinear strain rate dependent triaxial braided composite has been analyzed. To verify the formulation, the tensile deformations of a representative polymer are computed across a wide range of strain rates. Results computed using the developed constitutive equations correlate well with experimental data.
Correlation and Significance Analysis Method on the Design Parameter for Dynamic Rigidity of Spindle System
Authors: Huang Qiang , Li Xiao Fei
Published: December 2012

In the dynamic design of spindle system, the better effect should be achieved by optimizing multi-parameters synthetically. A spindle system has numerous design parameters. It is not advisable to optimize every design parameter. So, it is quite essential to analyze the influence extent and their correlation of these design parameters on the system dynamic rigidity. Taking the hob spindle system of YK3610 as an example, an analyzing method based on the orthogonal test is introduced in this paper. In this analysis, the dynamics model of system is built by transfer matrix method. Finally, a multi-parameters optimizing demonstration is provided.
Designing and Development of Automatic Classification Equipment in Resource Recycling
Authors: You J.S. , Wu Wen Fang
Published: December 2012

Creat and keep a good living environment is everyone’s responsibility. However, in the high-stressed society, people are driven to be more effective, many disposable products come into being, such as, plastic bottles, plastic products, styrofoam, etc. They are common in low price, and handy enough. Meanwhile, Users are tend to foster the habit of throwing waster about ,which is not only a waste of resources, but also a serious environmental problem. Therefore, it is quite important to classify the garbage and recycle the resources, and transfer the "throwing after using immediately" society into a sustainable society. Hence, the interdisciplinary cooperation method in the design and engineering field to design and develop the productis employed in this thesis.Then, based on the technical feasibility evaluation and the production of the prototype, functions of the products have been checked and achieved. Thus, it can be used to recycle the resources and reate a high quality living environment, further promote the new concept of environmental protection.
Dimensional Synthesis of a Planar Parallel Mechanism for Wafer Transfer with Kinematics Performance
Authors: Ni Yan Bing , Guo Wen Xia , Luo Fa Yang
Published: December 2012

This paper deals with the dimensional synthesis of a planar parallel mechanism for wafer transfer with kinematics performance. Under the relationship between workspace and parametric, a kinematics performance index, which is composed of the conditioning number of the Jacobian matrix and the motion resolution, is considered as the evaluation criterion. And a new index which is proposed by considering both the mean value and fluctuation of the pre-mentioned index is used to optimally design the dimensional parameters. It is testified that the optimal dimensional parameters can satisfied with the kinematics performance.
Effects of Geometric Parameters on the Inner Surface Pressure of Elbow Pipe and the Establishment of Pressure Model
Authors: Lu Xiao Yang , Lu Xiao Li , Huang Li Li , Liu Jin Ming , Liu Ying Yue , Xu Yi Min
Published: December 2012

Elbows of oil pipeline were adopted to study the effect of the variation of the geometric parameters of the inner diameter d, bending degree k =R/d and bending angle A on the distribution regularity of the inner surface pressure, with the simulation by the FLUENT software. Based on the analysis, the pressure computational formula on the dangerous cross section α=45° was built by using 1stOpt software. The values computed by the formula agree well with the ones simulated by FLUENT, which lays the groundwork for strength check and structural design of the elbow pipe.
Study on Mechanics Properties of Shifting Impact of Overrunning AMT
Authors: Hao Jian Jun , Ge Shuai Shuai , Zou Xi Hong , Ding Xiao Hui
Published: December 2012

Aiming at the problem of long time power interruption and clutch master-slave friction plates wore seriously which greatly shorten the life of clutch during shifting process of AMT, a overrunning AMT without separation process of clutch when shifting is designed. This paper has analyzed structural characteristics and shift principle of overrunning AMT. Through force analysis on the jointing process of roller overrunning clutch, the mathematical model and dynamic model of transmission system are established. Finally, the shifting impact of shifting process is analyzed based on computer simulation. The simulation results indicate that vehicle longitudinal degree of jerk meets the requirement of vehicle comfort.
Mechanism of Bio-Inspired Ultrasensitive Low Frequency Sensor with Mechanics Analysis
Authors: Liu Li Jun , Lei Ying
Published: December 2012

It is essential to develop ultrasensitive low frequency sensors for efficient structural health monitoring and early warning of natural disasters. Many fishes have been reported to have acute sensitivity to low frequency. Based on the mechanism of the infrasound sensitivity of fish, mechanism of bio-inspired ultrasensitive low frequency sensor is explored by a mechanical model with gating spring hypothesis for simulating the mechanical-electricity transduction of the hair cell in fish ear. Numerical analyses of the mechanical model subject to static and dynamic loading are conducted respectively by OpenSees. Under static loading, displacement response of gating model is more sensitive to weak loading due to the opening of gating spring. Under dynamic loading, the gating model is more acute sensitive to low frequency and weak loading due to the adaptive amplification of gating spring. This mechanical function can be used as the theoretical basis for the design of ultrasensitive bio-inspired low frequency sensors.
Study on the Equivalent Circuit of Quartz Crystal Microbalance (QCM) with Material Properties
Authors: Liu Xue Peng , Zhao Dong Mei
Published: December 2012

The quartz crystal micro balances (QCM) principle is simply introduces. LEM model can accurately describe TSM sensors with surface the load, instead of complicated TLM model. The configuration of sensor has pure quality load, liquid load in fluid Newton system, the sticky elastic thin film, and viscoelastic membrane plus half infinite liquid. Two kinds of material properties model prediction deviate with no more than 3% error. The rule of Judging TLM to be the LEM is Zl/Zq<0.1
Comprehensive Evaluation of Wall Material Optimization Based on the Theory of Gray System and Wall Pressure
Authors: Bao Xue Ying , Lin Shi Sheng , Man Jin Ping , Wang Qi Cai
Published: December 2012

According to the factor of the characteristics of the wall material, wall pressure, as well as the influence of the wall material, the article aims at the alternative wall material in view of the unobvious functional difference, and builds wall material evaluation system. Then based on the theory of gray system, the present article conducts a comprehensive quantitative and qualitative analysis by analytic hierarchy process, and optimize the best wall material so as to provide a certain reference for the designing and construction side in the optimization of wall material.
Study on Tool Wear of High Volume Fraction SiCp/Al Composites with Ultrasonic Vibration High Speed Milling
Authors: Xiang Dao Hui , Liu Hai Tao , Jiang Xiao , Liang Song , Yang Guang Bin
Published: December 2012

Abstract: High volume fraction SiCp/Al composites were milled in ultrasonic longitudinal high frequency vibration milling and conventional milling in this experiment. Meanwhile, the form of wear and wear mechanism of PCD milling tools were investigated. In addition, the relationship between the maximum wear of PCD milling tool and the length of milling were obtained. The results show that it is mainly flank wear of PCD cutting tool under the same milling parameters, which are caused due to hard points wear and thermal and chemical wear. Furthermore, the wear of PCD cutting tool by the ultrasonic vibration milling is smaller than that obtained by the conventional milling.
The Influence of O2/Ar on the Dielectric Properties of Bismuth Zinc Niobate Titanium Thin Films Prepared by RF Magnetron Sputtering
Authors: Sun Xiao Hua , Luo Zhi Meng , Hou Shuang , Huang Cai Hua , Zou Jun
Published: December 2012

BZNT (Bi1.5Zn0.5Nb0.5Ti1.5O7) thin films were prepared on Pt/Ti/SiO2/Si substrates by radio frequency (RF) magnetron sputtering in different O2/Ar ranging from 4:16 to 7:13. The structure and surface morphology of BZNT thin films were investigated by x-ray diffraction (XRD) and atom force microscopy (AFM). The analysis of component in BZNT films were carried out by x-ray photoelectron spectroscopy (XPS). The dielectric measurements were conducted on metal-insulator-metal capacitors at the frequency from 100 Hz to 1M Hz. It’s found that the O2/Ar ratios significantly influence the elements content in BZNT thin films and the morphology and dielectric properties of BZNT thin films. At 1M Hz, the dielectric constant of BZNT thin films deposited at O2/Ar ranging from 4:16 to 7:13 is 212, 187, 171, 196, respectively. The BZNT thin film prepared at O2/Ar = 6:14 shows the highest figure of merit for its very low dielectric loss of 0.0024.
Photoelectrochemical Studies of Dye-Sensitized TiO2 Nanoporous Electrodes
Authors: Jiang Li Ming
Published: December 2012

The nanoporous titania dispersion system are prepared under hydrothermal conditions by employing various amount β-cyclodextrin(CD) as the porogent.Then, different microsructure nanoporous TiO2 electrodes are fabricated by Doctor-blade mehod, using the above synthesis of titanium dioxide materials.The photoelectrochemical properties of dye-sensitized nanoporous TiO2 electrodes are studied with transient photocurrent spectrum ,electrochemical impedence spectra (EIS) and photocurrent action spectra. The results indicate that the current response signals of dye-sensitized porous TiO2 electrodes are stable. In addition,the impedence arc radius decreases gradually and light current increases gradually with the addition of β–CD. Meanwhile, the dye-sensitized porous electrodes with β-CD/TiO2 ＝40 wt% showes the best photoelectrochemical properties.
Enhanced Dielectric Properties of Pb0.3Sr0.7TiO3 Thin Films by Ultrasonic Processing
Authors: Sun Xiao Hua , Li Xiu Neng , Yang Ying , Wu Min , Hou Shuang , Huang Cai Hua
Published: December 2012

Pb0.3Sr0.7TiO3 (PST) thin films have been prepared from precursor solution sonicated for different time on Pt/Ti/SiO2/Si substrates by sol-gel method. The effect of ultrasonic processing on the chemical bonding of PST precursor solution and the thermal evolution of PST dry gel are characterized with FT-IR and TG-DT technology. The structure, dielectric properties and leakage current density of PST thin films are investigated as functions of sol ultrasonic processing time. It’s found that ultrasonic processing brings about the partial sol structure rearrangement, the delay of PST formative temperature, the reduction of crystallization and dielectric constant, and the significant improvement of leakage current, dielectric loss and the figure of merit (FOM). The results suggest that the enhancement in the quality of thin films prepared with sol-gel method can be obtained by the suitable ultrasonic processing on precursor solutions. The PST thin film prepared from precursor solution sonicated for 8 h shows the highest FOM for its appropriate tunability of 57.36% and low dielectric loss of 0.0144.
Research on Equal Flow Distribution of Pulverized Coal-Air Mixture in Parallel Pipeline
Authors: Yang Xing Sen , Yin Jing
Published: December 2012

It is very important to maintain the flow rate of pulverized coal-air mixture in different pipelines equal to each other in power generation units. As the usual practice, the resistance regulation is done to get an equal air flow velocity with the absence of pulverized coal. The paper indicates that such regulation can not ensure the equal flow rate of the mixture with pulverized coal. The purpose of this paper was to develop a method to achieve the same velocities of the mixture with certain concentration. The resistance characteristics of the pipeline and the adjustable plate corresponding to the pulverized coal-air mixture were taken into account to study the flow difference between pipelines. According to the initial flow difference, the method to regulate the flow rate without pulverized coal is got and thus the equal flow state of the mixture is ensured.
Cooling Mechanics Performance with Fuzzy Prediction on in the Water Supply System Based on Mechanics Properties and Material Properties
Authors: Chen Xiao Hong , Xu Hui , Xie Sheng Jian , Zhao Hong Wu
Published: December 2012

In actual production, able to predict that their products performance can meet the requirements of the national standard, whether or not to meet the pursuit of enterprise product high standard quality requirements. To solve this problem, in the plate production site collection plate large amount of measured data in sheet metal production, main technological parameters of field measurement, and at the same time on the production of sheet metal plate products the main mechanical properties experimental determination.
Electronic Structures and Spectral Properties of the Emitting Molecule Rhenium (I) Tricarbonyl Containing Naphthalimide Ring in Chemical Manufacturing System
Authors: Xia Hong Ying , Zhao Feng
Published: December 2012

Rhenium (I) tricarbonyl complexes comprise an important class of luminescent materials in chemical manufacturing system. A Re(I) complexes, Re(CO)3(phen-PIN)(Cl) (1), where PNI = 4-piperidinyl-1,8-naphthalimide, was investigated using density functional theory (DFT) and time-dependent density functional theory (TDDFT). The optimized ground structures show that the phen ring is not coplanar with the naphthalimide ring. The HOMO is π character, while the LUMO is π* orbitals of the phen ligands. The lowest lying absorption band of the complexes has the HOMO → LUMO+1 transition configurations resulting in the LLCT/ILCT characters.
Transparent Encryption Technique for Word Documents Based on USB Key in Manufacturing System
Authors: Meng Yu Xin , Dong Jun Yu , Yin Yan Hua , Qi Lin
Published: December 2012

This paper reports the work of designing a filter driver in the System kernel layer using the Minifilter technique to implement transparent encryption for MS Word documents in manufacturing system whilst keeping the corresponding keys in the USB Key. The study will be useful and meaningful for the development of manufacturing course.
Dual-Axis Tracking Solar Scaffold Mechanic for the Joint Storage Photovoltaic Power Generation System for Manufacturing
Authors: Li Bin , Kang Zhong Miao , Tang Liang Rui , Qi Bing
Published: December 2012

Public building systems using mainly the roof and wall with semiconductor materials that generally a few hundred kilowatts to several megawatts, most of the power generation system, building their own electricity needs are met, excess electricity can be transmitted to the grid. The general annual solar radiation direction and the horizontal angle is the angle of inclination, and also based on the latitude of the installation area. A novel dual-axis tracking solar system is presented in this paper that can be simply manufactured , and the photovoltaic power generation is analysis from the system architecture. The mechanical and electrical characteristic is also analyzed and compared, and the proposed approach can be widely used in future wind-solar complementary system.
Numerical Simulation for Gas Supply Line Design in Manufacturing Process of Silicon Solar Cells Based on Steady State Fluid Dynamics
Authors: Chen Rong Lian , Wang Song Hao , Sun Yi , Dong Yun Jiang
Published: December 2012

This paper presents the numerical analysis of the velocity distribution in for a Fully Automatic Horizontal Diffusion Furnace for manufacturing Silicon Solar Cells. Diffusion and convection usually are interconnected in physics world, while convection is directly connected with flow velocity. Therefore, in a diffusion oven, the velocity of the gas(es) surrounding the wafer zone would play an important role in the quality of the process. A more uniform laminar flow surrounding the area, should in fact results in more consistent wafer quality. Therefore, the focus of the study is to compare the velocity field in the neighboring area, for different arrangement of gas intake. Numerical simulation has been conducted to provide guidance of designing the gas supply tube and the nozzles. Three dimensional, Steady State Fluid Dynamics analyses have been made. From the results of the simulation, the supply gas velocity distribution is very sensitive to the parameters. Gas supply line design with variable nozzle diameters form 2.0 to 3.5 provides the better gas velocity distribution, ensuring fresh gas to the wafer zone with gentle laminar flow in this study.
The Mechanical Drawing Distributed Synchronous Audit System Design for Product Development Process Based on Web
Authors: Liu Xue Peng , Zhao Dong Mei
Published: December 2012

The mechanical drawing distributed synchronous audit system for product development process of manufacturing system based on WEB has an ability of real-time graphics discusses ability. It can also be used in the remote education difficult question answer discussion system. It is discussed that the whole design review system development language and electronic board choice, read the process, digital signatures, read serialization files, the client module and the client downloads. The final result of the operation system is obtained