bluuebunny/crossref_metadata_2025 huggingface dataset:
Finite Element Models for Asphalt Mixture Fatigue Behavior Study
Authors: Yu Jiang Miao , Chen Ye Kai , Zhang Xiao Ning
Published: September 2014

This paper presents digital models of indirect tensile test and four point bending fatigue test for asphalt mixture at a microstructural level. Conventional images were converted into Finite Element (FE) models which consist of the information of material heterogeneity and microstructures of real asphalt mixtures. It was found that the material heterogeneity especially the volumetric properties can significantly affect the fatigue behavior which is quite different from the traditional findings based on the hypothesis of homogeneous material. The results show that the proposed method for FE model of fatigue test can be extended for other analyses like rutting or low temperature cracking.
Analysis of Pore Water Pressure in Specimen under 3D Uniform Deformation Field Considering Inertia Effect
Authors: Xu Bin Bin , Noda Toshihiro
Published: September 2014

A dynamic analysis code has been expanded from the previous quasi-static code and the effect of inertia term is added. In this paper, the influence of inertia term on the pore water pressure is investigated in detail under a uniform deformation field theoretically and it is found that the distribution of pore water pressure is parabolic if there is inertia term. Then in order to verify the calculation precision of this code, the soil-water coupled numerical calculation is carried out based on the assumption of uniform deformation. Special distributively pore water pressure is applied to each finite element according to its radius to keep the uniformity of deformation. The results show that the maximum of pore water pressure appears at the center of circle and it gradually decreases along the radius, which proves the precision of the dynamic analysis code is very high.
Experimental Research on CFRP Laminates with Different Impact Energy Levels
Authors: Zhang A Ying , Zhang Dong Xing
Published: September 2014

The effects of thickness and impact energy on the impact damage of CFRP laminates were studied in this paper. Impact tests for the CFRP laminates with the size of 600 mm×700 mm with five different thicknesses were subjected to impact fatigue loading at different energy levels from 5 J to 65 J. The crater depth and matrix length were investigated according to different energy levels and different thicknesses. The impact damage was evaluated by visual inspection, three-dimensional microscope. The experimental results reveal that the crater depth and the crack length increase with the increasing impact energy. For the same impact energy, the crater depth and the crack length decreased with the increasing thickness of specimens.
Triaxial Compression Experimental Study on Post-Peak Deformation Characteristics of Rock Masses with Persistent Joints
Authors: Ping Yang , Li Shu Chen
Published: September 2014

Controlling the stability of surrounding rocks in underground excavations during in-depth resource development must be confronted with post-peak deformation and failure problems of jointed rock masses. This paper describes routine triaxial compression testing on standard cylinder specimen with persistent joints in different inclinations and under different confining pressures, and analyzes deformation characteristics of rock masses with persistent joints in different inclinations and under different confining pressures. Test results show that the peak strength, residual strength, and peak strain of the jointed specimen basically increase with increasing confining pressures but decrease with increasing joint inclinations. Test results well reflect that it is incorrect to evaluate deformation characteristics of jointed rock masses with continuum mechanics and research results provide a reference for the research on the stability of surrounding rocks in underground excavations.
Architectural Language Function of Zinc Plate in the Architectural Surface Design
Authors: Cheng Yan Yan
Published: September 2014

It is discussed in the article of the characteristics of zinc plates and attention points during application. Examples are shown to explain in detail the expression of zinc plate in the architectural surface design. Corresponding improvement suggestions are given for application of zinc plate in architectural design.
Analysis of Load Transfer Efficiency at Joints of Monolithic Track-Bed under New City Tramcar Loading
Authors: Liang Guo Xi , Liao Zhi Gao , Li Bo , Zhou Liang , Su Er Hao , Huang Chong Wei
Published: September 2014

Joint load transfer ability is the key part of the analysis of the rigid pavement structure. This paper is focused on the load transfer efficiency at joints of monolithic track-bed under new city tramcar loading. Based on the general finite element analysis software ABAQUS, the relationship between the modulus of virtual materials in virtual material layer method and joint load transfer ability is analyzed. Meanwhile, bending stress and deflection for monolithic track-bed structure on edge loading case are calculated under different thickness of the pavement structure.
Magnetic Molecularly Imprinted Polymers Based on Poly[2,2’-(p-oxidiphenylene)-5,5’-bibenzimidazole] (OPBI) for Selective Detection of Nonylphenol in Water Samples
Authors: Zhou Yan , Wang Zheng Ping , Guo Pan Pan , Gao Xue
Published: September 2014

Magnetic molecularly imprinted polymers (MMIPs) based on poly [2,2’-(p-oxidiphenylene)-5,5’-bibenzimidazole] (OPBI) composites were synthesized for the selective adsorption and detection of nonylphenol (NP) from water samples. During polymerization, Fe3O4@C was used as supporter and magnetic substance and OPBI not only was used as crosslinking agent but also functional monomer. Morphology of Fe3O4@C and MMIPs were investigated by scanning electron microscopy (SEM). The kinetics of adsorption followed the pseudo-first-order model. Selectivity of MMIPs was further demonstrated through HPLC analysis of the water samples, in which bisphenol A (BPA), phenol, 4-nitrophenol (4-NP) and tetrabromobisphenol (TBBPA) were dissolved respectively. The result showed that MMIPs had more effectively recognition capability of NP than other contrasts.
The Failure Reasons and Testing Methods of the Asphalt Pavement
Authors: Li Peng Fei , Liu Jing Hui , Lei De Xin , Li Zhi Zhong
Published: September 2014

With the rapid development of our economy, also promotes the development of our country road. Though the road construction starts relatively late in our country, but its development is very quick. However, due to the technology is not very mature, and the road load is bigger, and the influence of climate and so on, makes appeared different degree of damage of asphalt pavement. So how to improve the quality of the road is also became a problem to be solved in engineering. This article mainly from the problems existing in the construction process, the influence of natural factors and human factors, analyses the reason of pavement damage, and how to detect damage of asphalt pavement.
A Research of Damping Characteristic of Hydro-Pneumatic Suspension
Authors: Yang Bin , Du A Lei
Published: September 2014

A simplified mathematic model of hydro-pneumatic suspension was set up and the damping characteristic curve of hydro-pneumatic suspension was obtained accordingly. A analysis of the effect of diameter of hydraulic jar, velocity of piston, diameter of damping hole and check valve diameter on damping characteristic of hydro-pneumatic suspension was made. It showed that the major influence factors includes moving speed of piston, diameter of hydraulic jar and diameter of damping hole.
Electrostatic Sensitivity Test of Semiconductor Device
Authors: Yang Shi Liang , Li Teng , Tang Wei Hong , Dai Ling
Published: September 2014

The electrostatic sensitivity of triode 2SC3358 has been tested by completely step method. By using strict calculation, we have found the damage threshold voltage distribution of CB junction of the semiconductor device observe normal distribution, the confidence interval about average value of the damage voltage under a confidence level at 90% is (1095.6V, 1256.8V) and the standard deviation is 235.7V. The analysis of the distribution of damage probability about electrostatic sensitive device has important significance for improving the reliability of electrostatic sensitive system.
Exhaust Emissions from a Light-Duty Diesel Engine with SME-Diesel Fuel
Authors: Xie Yang , Hang Yu Jie , Wang Hong Tao , Shen Hai Qing , Xu Cang Su
Published: September 2014

Researchers have recently attempted to discover alternative energy sources that are accessible, technically viable, economically feasible, and environmentally acceptable. The objective of this study is to investigate regulated and unregulated exhaust emissions with petroleum diesel fuel and Jatrophabased biodiesel blends at proportions of 20%, 40%, 60%, 80% and 100% (v/v). This study examines three regulated emissions: CO, NMHC and NOx, and two typical unregulated emissions: SO2 and formaldehyde. The CO and formaldehyde emissions increase at low engine loads, and decrease at high engine loads. The NMHC and NOx emissions of the five fuels continuously decrease as biodiesel blends increase. Besides, SME fuels can also reduce the SO2 emissions.
Movable Pulley Movement Characteristic Analysis Based on Adams
Authors: Wu Feng Qi , Zhang Jin , Yao Wen Qing
Published: September 2014

Based on the multi-body system dynamics in the ADAMS environment, a virtual prototype of crane hoisting mechanism was developed. In this model, the whole system was disassembled lifting mechanism system with flexible body dynamics model of the wire rope. The virtual running environment was established according to the actual working conditions, which is designed the lifting working process with rope-movable pulley contact. It is the key step to build hoisting mechanism dynamics model for performance analysis of system dynamics, which is the basis for the optimize design of hoisting mechanism. Virtual prototype simulation results will be applied to prototype design and evaluation, and save a lot of manpower and material resources. At the same time, the method has an advantage for dynamics analysis to simulating some dangerous movement conditions, which is hard to be replayed or simulated at the test actual working condition site. In particular, some cases cannot be recurrence in the accident handling process. Variable stiffness contact characteristics of wire rope-movable pulley of hoisting mechanism are implemented successfully through discrete multiple rigid body are applied to the wire rope in this paper , the establishment of a crane hoisting mechanism dynamic model is based on ADAMS, which realize hoisting mechanism flexible simulations, running virtual environments of hoisting mechanism is established, these results show that the model reflected the actual dynamics of hoisting mechanism, also present that some of the theoretical analysis results cannot confirm.
On the Kinematic of a Coil Winder of RCRC Type
Authors: Hsieh Wen Hsiang , Tsai Chia Heng
Published: September 2014

The purpose of this study aims at performing the kinematic study of the coil winder with a RCRC mechanism by investigating the geometry and conducting kinematic simulation. First, the motion principle of the shuttle is addressed. Then, the topological structure of the RCRC mechanism is examined, and its kinematic chain and kinematic sketch are drawn. Finally, a design example of the RCRC mechanism is given for illustration, and its feasibility is verified by performing kinematic simulation using ADAMS software. Finally, the simulated result shows that the shuttle can produce the required winding motion.
Parameters Optimization of Ditcher Chain Transmission System of Multi-Functional Machine
Authors: Chen Yu Lun , Qiu Wei , Ding Wei Min , Li Yi Nian , Liu Yu Tao
Published: September 2014

In this paper, the mathematical model based on modern design methods of machinery used to optimize the parameters of the two-stage chain transmission system was established. The optimization toolbox of Matlab was introduced as well. Optimization results showed that, the pitches of first and second-stage chains were 19.05 and 25.4 respectively; compared with the original scheme, transmission ratio of first-stage chain decrease from 2.57 to 1.77, while the second-stage increase from 1.0 to 1.45. The number of chain strands of second-stage chain decreased from 2 to 1. The teeth number of the driven sprocket of the first-stage chain decreased also from 59 to 41. Total weight of the sprockets of the chain transmission system decreased from 25.40 kg to 14.84 kg, at least 41.57% material was saved and not less than 50% production cost was reduced. The optimization method is simple, feasible and the optimized parameters are reliable in practice.
Reliability Analysis for Capstan Turret on CNC Lathe
Authors: Meng Shu , Shen Gui Xiang , Zhang Ying Zhi , Zhu Li Hui , Sun Shu Guang
Published: September 2014

Based on failure analysis of CNC lathe capstan turret and building failure tree, according to the fuzzy information provided by the users, engineers and technician, the failure rate is defined as a set of trapezoidal fuzzy number. By means of fuzzy operation, the paper determines the failure fuzzy probability of the capstan turret. By analyzing the calculation results, It proves that this method can be applied to the reliability analysis of CNC lathe capstan turret subsystem, provide a reference for modification design of the capstan turret subsystem.
Research on Spatial Multidimensional Vibration Characteristics of Flexible Mechanical Arms with Complex Configuration
Authors: Liu Cui Ping , Huo Rui , Li Shu Ying , Cui Xing Ke , Zhang Dao Kun
Published: September 2014

Mechanical arm plays an important role in the mechanical systems, which is widely implemented in many engineering areas. Nowadays, the flexible manipulator attracts wide attention due to its flexibility. In this paper, implemented considering the complex configuration of the flexible manipulator system, especially the flexibility of flexible mechanical arms and joints, the dynamic model is established by using mechanical admittance and transfer matrix method. In this model, the compound vibration displacement of flexible manipulator is defined as evaluation index. Taking the double flexible mechanical arm as an example, the internal structure parameters and the influence of external configuration of the terminal compound vibration displacement are analyzed respectively.
Research on Three-Position Calibration Method for the Installation Error of Inclinometer with Two-Axis Gravity Accelerometer
Authors: Deng Jiang Hong , Chen Xin Yuan , Zeng Liang Cai
Published: September 2014

At present,The installation error calibration of gravity accelerometer for the automatic vertical drilling tools is complex and difficult . For this,the paper presents three-position calibration method for the installation error of inclinometer with two-axis gravity accelerometer. The method is based on the equation about actual attitude angle of the inclinometer, installation error angular of two-axis gravity accelerometer and output voltage. The voltage value of the three position is measured, and iterative calculation with MATLAB is used to obtain the installation error angle. The results of simulation prove that this method can meet the requirements of installation error angle calibration of drilling tools , the calibration error is less than 1.5%.
Study on the Effects of Compressed Natural Gas on Engine Performances
Authors: Zeng Qi , Fu Long Hu
Published: September 2014

Engine bench test research has been done on a JL4JB1 diesel engine fueled with compressed natural gas (CNG), and the power performance, load performance and universal performance were obtained, analyzing the performance changing regulations of CNG engine. The results indicate that the maximum torque turns up at the medium speed when the engine operates at power performance points, and the minimum brake specific gas consumption (BSGC) also comes up at medium speed. When the rotating speed keeps constant, BSGC decreases with the torque increasing, and decreasing largely at small load while a little at high load. From the universal performance curve of CNG engine, we can know that the minimum BSGC is 194g/kW·h.
The Optimization Design about Flat Tail of Small Drones
Authors: Ji Min , He Jing Feng , Zhang Wei Ming
Published: September 2014

A multi-objective optimization method was advanced to make the drag and structure mass minimum of horizontal stabilizer based the precondition of meeting flying qualities. After the optimization, the longitudinal stability reduced, the longitudinal control performance increase. This method has referential meaning for the design of horizontal stabilizer for Mini-UVA.
Computer Modeling of the Rolling Process of Reinforcing Steel
Authors: Naizabekov Abdrakhman , Lezhnev S. , Volokitina I. , Panin Evgeniy
Published: September 2014

In this article a preparation of computer model of reinforcing steel rolling process using program complexes “KOMPAS” and “DEFORM-3D” is described. In result was made a model that is fully corresponded the requirements of standards by geometric sizes. This model can be used for optimization of workshop rolling parameters of the reinforcing steel.
An Analytical Model of Interactive Coefficients of Multiple Systems
Authors: Wang Xiao Yan , Shen Gui Xiang , Zhang Ying Zhi , Sun Shu Guang
Published: September 2014

Dependent failures of machines may take many forms. Interactive failure is one type of the dependent failures happening among multiple subsystems. The interactive coefficient is represented by the degree of interaction between two subsystems, but it cannot be estimated in intricate interactive relationship among multiple subsystems by now. In order to solve the problem, the failure chains of the interactive failure are classified into five types in this paper and all the elements in it are defined. Then the interactive coefficient models are developed for all failure chains according to the relationship among the interactive failure rate, the independent failure rate and the dependent failure rate. The estimation of the interactive coefficient is based on failure rate equation. The results offer a solution to the problem that the interactive coefficient of multiple systems cannot be calculated. These findings provide a method to predict and design the reliability of mechanical equipment more accuracy as well as guide to optimize scheduled for the maintenance of mechanical equipment.
Based on Rub a Drum Processing Scheme Optimization Design Practice Research
Authors: Ye Xuan Lin
Published: September 2014

Take rub a drum as the study object, to study the rub a drum processing process because the actual production for the processing deformation leads to high reject rate. explained the NC processing process design content and principle of processing division, the author combined with the milling tool selection and machining allowance to study, for the optimization design of Rub the drum processing scheme .
Research on Numerical Simulation of Fragments towards Major Fighting Tank’s File System
Authors: Wu Xiao Ying , Li Fan
Published: September 2014

we analyze the damage effect of different fragments of tank weapon system. The fragment penetrating 125mm smoothbore tube as an example, we established the simulation modeling and setting the initial conditions for the calculation of the. Numerical simulation of damage of fragment penetrating the gun tube by using ANSYS software, we analyze the damage assessment parameters. By using multiple regression method to analyze the results, we conclude that damage rule fragment penetration of gun tube.
Ozonation by-Products of Humic Acid in the Presence of Hydrogen Peroxide
Authors: Shin Hyun Sang , Rhee Dong Seok
Published: September 2014

Ozonation of humic acid has been conducted in the presence of hydrogen peroxide as catalyst. Besides the study of total organic carbon removal in the ozonation, ozonation by-products were investigated through the change of injected concentration of H2O2, initial pH of aqueous humic acid and injection time of H2O2. The variation of hydrogen peroxide and formaldehyde contents in the processes are mainly evaluated. The formaldehyde was formed less in ozonation with hydrogen peroxide system than without it. When initial pH in solution was changed from 3.5 to 10.5, the formaldehyde was formed with the highest concentration at pH 5. In addition, the concentration of H2O2 produced by ozonation was found to be increased with decreasing pH of the sample solution in this process.
The Logging Response of Step Conductivity Formations both in Axial and in Radial
Authors: Wang An Ling , Liu Fu Ping
Published: September 2014

Because difference of formation model affects the potential distribution on the metal casing, the resistivity logging response can be obtained through casing by measuring the potentials on the metal casing. In fact, the logging responses are the comprehension effects of complex formation and metal casing, so that in the coefficients of transmission line equation (TLE), we should consider the effects of formation model in radial-direction. In the following, for the formation taking on six-layer in axial-direction, and step in radial-direction, the resistivity logging responses through casing are researched and discussed, and given the recurrence formula to compute potential. Draw the curve of the resistivity logging response through casing of six-layer formations. The conductivity of formation is computed is very approximating to that of formation model. The computing examples also show that this method has a fast computing speed (the run time of computing example is less than 1s). For analysis the logging response of six-layers and block formations, and the design of logging instruments, the research is important significance and useful.
The Optimization of Injection and Gathering System in Salt Cavern Gas Storage
Authors: Lv Yi Tang , Huang Kun , Huang Cheng , Fang Liang , Yang Hai Jun , Zhang Zhu Song , Luo Shan
Published: September 2014

As an important type of energy reserves, underground gas storages are increasingly being used in China. XX salt cavern gas storage provides many experiences as the first one in China. In this paper, the surface gathering system process in XX gas storage was studied systematically. And also, the optimization to separator, pressure regulating device, flow meter in single well process were also made according to the field operation and theory. Through the optimization, the single-well process will be more simple and easier to maintain, and the leftover problems were also resolved, which provided advice to the later stages of XX gas storage.
Determination of the Maximum Length of the Cooling Pipeline Used in the District Cooling System
Authors: Tan Chao Yi , Zhu Hui , Hu Hai Hua , Chen Gang , Wang Han Qing
Published: September 2014

For the purpose of taking full advantages of the District Cooling System (DCS), the mathematical model was established based on the principle of non-decreasing state of the energy efficiency grade of the refrigeration unit and high level of the transportation energy efficiency of the cooling pipeline. Based on the mathematical model, two formula were derived. One is suitable for the scientific research concerning the length of the DCS, and the other is appropriate for the design in engineering application. The determination of the maximum length of the pipe provides an alternative for the research and design of the DCS, therefore it is worth studying.
Preparation and Characterization of Bipolar Membrane Modified by Iron-Phthalocyanine with Different Amounts of Carboxyl Groups
Authors: Yu Ya Ping , Hu Yan Yu , Chen Ri Yao , Chen Li Jin
Published: September 2014

Iron-phthalocyanines (Fe-phthalocyanines) with different amounts of carboxyl groups were added into carboxymethylcellulose (CMC) cation exchange membrane to prepare the modified CMC/CS bipolar membranes (BPMs, CS: chitosan), which were characterized using electric universal testing machine, contact angle measurer and so on. Experimental results showed that the ion exchange capacity, hydrophilicity of CMC membrane and mechanical properties of the BPM notablely got better after Fe-phthalocyanines were added. Furthermore, a high charge density area formed in the interlayer of the BPM after modification, which sped up water dissociation and lowered the membrane impedance. At the current density of 60 mA cm-2, the cell voltages of Fe2Pc2(COONa)12-CMC/CS BPM, FePc (COONa)8-CMC/CS BPM, FePc (COONa)4-CMC/CS BPM and CMC/CS BPM were 5.6V, 6.2V, 6.5V and 8.9V respectively [here, Fe2Pc2(COONa)12: planar binuclear iron (III) phthalocyanine; FePc (COONa)8:iron (III) octocarboxyphthalocyanine; FePc (COONa)4:iron (III) tetracarboxyphthalocyanine]. The cell voltage of Fe2Pc2(COONa)12-CMC/CS BPM was the smallest.
Study and Apply of Seepage Law on Multi-Stage Fractured Horizontal Wells in Tight Gas Reservoirs
Authors: Wang Ping , Xia Zhao Hui , Ding Wei , Zhao Chao Bin , Hu Yun Peng , Li Chen
Published: September 2014

Because the extremely low permeability for tight gas reservoirs, lead to the way to seepage and the shape of production curves different with the convention reservoirs; this will increase the difficulty to develop the tight gas reservoirs; on the other hand, the convention exploit cannot recover the tight gas with commercial value, with this problem, the main solution is the technology of multi-stage fractured horizontal wells, the fractured can provide the channel for gas to transport, the horizontal wells can increase the seepage area of tight gas, it’s the guarantee to get the commercial value. But, at present, the study on the tight was dependent on the method of convention gas reservoirs, the production curve get from this method also the same with the convention gas reservoirs, in order to close with the really exploitation of tight gas reservoirs and provide the more accurate scientific evidence, we must study based on the feature of tight gas reservoir, in this situation, we can get the suitable production curves for tight gas reservoirs. This paper based on the feature of tight gas reservoir, combine with the model of multi-stage fractured horizontal wells, and get the production equation of tight gas, combine with the yield of discard time, we can get the type curve, and then get the C level reserves of region.
The Power Quality Evaluation Method Based on the Matter-Element Comprehensive Evaluation Method
Authors: Zhang Gang , Liu Fu Chao , Xie Tuo , Zheng Jing Jing
Published: September 2014

As for the pricing by electrical energy quality and the decision of rewards and penalties based on the examination at assessment point, Comprehensive evaluation on power quality is one of the principal foundations. To analysis and evaluate electric power quality for electric power company is a focus research at present. In this paper, the power quality evaluation model based on the matter-element extension theory is applied to power quality evaluation service. For power quality evaluation system of the characteristics of the complexity and incompatibility between various indicators hierarchies, this paper applied the theory of matter-element extension constructing Matter-element model, and identified level of power quality of power supply company through the calculation of weight and the correlation service. Taking GanSu Grid Company as an example to evaluate power supply quality, the results show that the evaluation results of power quality evaluation method based on the matter-element evaluation method are more objective, more precise and more reasonable.
Uncertainty Analysis in Geological Modeling for Coalbed Methane
Authors: Cao Shuang Zhen , Xia Zhao Hui , Zhang Ming , Yang Yong , Duan Li Jiang , Cui Ze Hong
Published: September 2014

The complexity of geological conditions results in ambiguity and uncertainty when interpreting geological data, bring difficulties to geological modeling, so quantitative evaluation of uncertainty of various geological parameters is important to establish accurate geological modeling. M coalbed methane field in eastern Australia was selected as an example to explain this process. The parameters and these uncertainty ranges were discussed firstly. And then, the impacts on calculated reserves of parameter uncertainty were analyzed. A better effect was attained in M coalbed methane field with this method.
Power System Research for Cabled Seafloor Scientific Observatory
Authors: Feng Ying Bin , Li Zhi Gang , Wang Xiao Hui
Published: September 2014

The power supply system, which is totally discussed in this paper, is of special importance for the daily operation of the cabled seafloor scientific observatory. Based on the unique features of the power supply system of the cabled seafloor scientific observatory, this paper proposes the solution of parallel direct current power supply, which is suitable for the underwater environment. According to special application environment of power supply system,this paper determines the maximum voltage and current that can be applied to the transmission system of the cabled seafloor scientific observatory.
A New Hysteresis Current Control Method for Active Power Filter with Lower Switching Losses
Authors: Zeng Jiang , Huang Li Peng
Published: September 2014

This paper presents a new hysteresis current control method for APF(active power filter) that can reduce switching losses effectively by means of adjusting the hysteresis band width according to the current size. On one hand, this method adjust the overall hysteresis band width according to the size of absolute norm of three-phase current that optimize the overall switching frequency, reduce the total switching losses effectively. On the other hand, it adjust hysteresis band width of each phase by comparing the output reference current to reduce the switching times which switching losses is larger, while increasing the switching frequency which switching losses is smaller, so as to maintain overall control precision. Computer simulation is conducted on an electromagnetic transient program. The results show that the new method can effectively reduce the switching losses under the same control accuracy and total switching frequency.
Design and Research for a Boiler Steam Drum Control System Based on PLC
Authors: Yang Xin Hui
Published: September 2014

] This paper introduces the composition of a boiler steam drum control system. It uses the application of a programmable PLC control unit for the boiler steam drum control system. By relying on MCGS configuration software, real-time automatic monitoring was accomplished.
Design of Mobile Robot Remote Control
Authors: Bian Ming Ming , Zhang Li Jian , Bian Lin Lin
Published: September 2014

With the application of mobile robot in the industry, put forward higher requirements to the computer remote control technology. Remote control for mobile robots, the communication protocol between the host computer and the robot body and the control command design is presented in this paper. Visual C++ 6 programming language is used to complete the system. Dependability and practicability of system are proved by test.
Designing of Micro-Motor Rotor Winding Fault Detection System Based on DSP
Authors: Gong Dao Wei , Shi Ming Quan , Han Zhen Feng , Wang Xiao Dong
Published: September 2014

With the production line testing requirement of the micro-motor rotor which is less than 10mm in diameter, an improved rotor detection method based on the pulse test method was presented for the rotor fault detection. This paper analyzed the operating principle of the method and simulated on the Matlab platform. Moreover, the rotor detection system centered on the DSP processor was designed to detect the rotor fault. The result showed that the method could quickly and accurately detect the inter-turn short circuit fault and determine the deep of short circuit. The degree of detection is up to 4% level, which meets the actual production testing requirement.
Intelligent Self-Adaptive Control Method Based on RBFNN and its Application in Hydraulic Control
Authors: Zhang Hao , Zhang Ya Jie , Zhang Yan Gu
Published: September 2014

We proposed an intelligent self-adaptive control method based on RBFNN in this paper, dynamic identification model of nonlinear control system is built based on radial basis neural network, mixed intelligent method of dynamic self-adaptive internal model control is developed by adjusting online for nonlinear control system. We applied the intelligent self-adaptive control method to nonlinear hydraulic control, simulation shows the dynamic characteristic is greatly improved by the intelligent control strategy for nonlinear control system, good tracking and control effect is reached in condition of high frequency response, and the intelligent control method has higher precision, smaller overshoot and stronger robustness compared with common PID control, BPNN control and fuzzy control. It provides a new control method for nonlinear control system.
Online Monitoring and Alarm System of the Galvanized Steel Wire’s Weight Based on OPC
Authors: Sa Ji Ming , Sun Ai Cheng , Pan Yong Fen , Bie Yan Bo , Zhang Ting Ting
Published: September 2014

It proposes a solution of the online monitoring and alarm system of the galvanized steel wire’s weight. This system can achieve stable and efficient real-time data acquisition, waveform display, and automatic alarm as soon as overrun. It also develops the functions of data management which is based on SQL Server. The system will provide the steel wire galvanizing production a comprehensive service of online monitoring, alarm and data management and so on.
Research of Application Status for the Drive Motor Based on the Pure Electric Vehicle
Authors: Pan Hao , He Ping
Published: September 2014

The drive motor as the only drive of pure electric vehicles, its performance and its controlling technology have important impact on the performance of pure electric vehicles, So research of the drive motor is the focus of the pure electric vehicle technology research.This article expound the current conditions of the drive motor ,Through the comparative research, that provide the basis for selection and matching of parameters of the drive motor under the conditions of meeting design goals. In combination with the future development trends of pure electric vehicle, to put forward the key research contents of the future of drive motor based on pure electric vehicles
Production of Polyaluminum Ferric Chloride from Blast Furnace Dust
Authors: Zhang Yan Li , Li Shan Ping , Zhang Qing Tao , He Ze He , Li Xiao Ming
Published: September 2014

Our goal was to produce a complex inorganic polymer flocculant containing poly aluminum ferric chloride (PAFC) from blast furnace dust. The optimum reaction conditions to achieve high extraction efficiency of iron and aluminum were obtained through a series of batch experiments. PAFC was synthesized by controlling the hydrolysis conditions of iron and aluminum. Extraction efficiency of iron and aluminum oxides from blast furnace dust was affected greatly by reaction parameters such as temperature, time and hydrochloric acid consumption. The dissolution rate of iron was 67.61% and the dissolution rate of aluminum was 12.35% under the optimum reaction conditions (100 °C, 3 hours, and and the mixing ratio of the blast furnace dust to the hydrochloric acid is 1:3). To neutralize the pH and then synthesize PAFC, a solution of Al (OH)3 was added to the dissolved blast furnace dust, and the mixture was hydrolyzed at 60~70 °C for 4 hours. The prepared complex inorganic polymer flocculant proved to be effective in removing turbidity. The turbidity removal ratio for kaolin simulative water was 99.36%.
Research of Active Chatter Control for the Piezoelectric Intelligent Boring Bar with Distribution Quality
Authors: Cui Xing Ke , Huo Rui , Li Shu Ying , Liu Cui Ping , Zhang Dao Kun
Published: September 2014

Seen as a cantilever beam with distributed mass system, the boring bar model and its state -space equation is built. On the basis of the dynamic model, a stability diagram of the boring system of the type of regenerative chatter is obtained. According to the stability diagram of the system, we get main analysis and comparison of the system stability near the fundamental frequency. In this paper, piezoelectric smart flutter suppression is carried out on a boring system with distributed mass, which improved the stability of the boring system
Research on Real Time Monitoring System for Coal Mine Belt Conveyor
Authors: Wang Jian Xun , Xie Hai Dong , Wang Zhi Dong
Published: September 2014

This paper investigates the common causes of coal mine belt conveyor accidents, including splice breakage, longitudinal rip, deviation, etc. Then, main real time monitoring methods and techniques for these coal mine belt conveyor accidents are classified and their problems are analyzed and summarized. At last, an intelligent real time monitoring system for coal mine conveyor belt which is under development is presented.
Research on University Classroom Lighting Energy Saving Intelligence Control System Based on Single Chip Microcomputer
Authors: Zhang Dan Tong
Published: September 2014

Aiming at the wasted serious program of the university classroom lighting energy, the project of the classroom lighting energy saving intelligence control system be put forword based on single chip microcomputer. The intelligence system is composed of the hardware and the software, taking single chip microcomputer as the main control core, using the light-to-frequency converter, the human body temperature and infrared sensor. The existence of human body be detected by the human body temperature and infrared sensor, the current frequency-field chip be judged by photoconductive resistance. The classroom lighting intensity and intelligence lighting control system be achieved. The system saves significant energy and works intelligently. This system had many advantages. For example, the physical volume is small, the system is conveniently controlled, the credibility is high, the appropriation is strong, and its price proportion is ideal, etc. The experiment proved that the system can satisfy the control command of the classroom’s light device, so it could largely reduce the consuming of energy resources.
Semi-Active Lateral Interconnected Air Suspension Hierarchical Control
Authors: Sun Li Qin , Cui Zhen
Published: September 2014

Based on semi-active interconnected air suspension system full vehicle dynamic model, Hierarchical control strategy is used to design LIAS control system to improve vehicle riding comfort.The upper layer is mode judgements layer ,and the lower layer is interconnection condition control and damping condition control layer.Interconnection condition control rules are carried out by taking vehicle speed, steering wheel angle and vehicle roll angle as input parameters.On base of the model,simulation results show that vehicle riding comfort increases by 29.2% and 3.37% through using mixed SH-ADD control than that of SH and ADD control individually,and vehicle roll angle reduces effectively under double-lane condition by using sport mode control rules.
The Control Strategy and Experimental Analysis of Electronic Differential Steering for Four Independent Drive Hub Motor Electric Vehicle
Authors: Pan Hao , Song Run Sheng
Published: September 2014

Wheel hub motor used in drive system of pure electric vehicle has become hot research and future development. Based on a four-wheel independent drive(4WID) electric vehicles with wheel hub motors, the paper has made the research on electronic differential steering control strategy by using Ackermann steering model conditions, and the experimental results have also been analyzed for the actual steering control effects under differential control strategy.
The Research and Realization of Monitoring System
Authors: Zhou Xiao Zhong
Published: September 2014

With the introduction and wide applications of laser guided AGV in the tobacco corporation, the logistics automation level is increased greatly. But with the introduction of flexible manufacturing system, the production line of the tobacco corporation become more complicate, the material requirement become more flexible, so that the driving stability has brought great challenges of AGV. In the system of more AGV compositing, there will been bought the conflict between multiple vehicles AGV. How can locate the position of each AGV instantly, and estimate and dispose the conflict during the running process in time, it has been the solve direction for team. This paper is researched based on the AGV’s system of KunChuan, bring forward a monitoring system of AGVS. The results shown that the actual trajectory is fully consistent with the planned through running, and achieving the prospective effect.
The Study of BP Neural Network PID Control Based on the Cutting Chatter Suppression System
Authors: Zhang Dao Kun , Huo Rui , Li Shu Ying , Cui Xing Ke , Liu Cui Ping
Published: September 2014

The intelligent control strategy of BP neural combined network with classical PID control is mainly studied and simulated. The advantages of the control strategy are discussed. Based on the simulated data, the BP neural network PID control has the stronger adaptive ability.
Variable Structure Control of Suspension Rotor System in the Mement Gyro
Authors: Bian Yu Chuan , Gong Han Chen , Yang Jing Wei , Liu Jian Feng
Published: September 2014

According to the magnetic suspension character of the rotor in moment Gyro, the control mathematic model for the Gyro’s rotor magnetic suspension system is founded. The system is characterized by its instability,nonlinearity. In this paper, a Variable Structure Controller is designed. Based on the general Variable Structure Controller theory, the design of switch function using the method of self-adapting configuring pole and the design of Variable Structure Controller using trending law are discussed. At the same time, the switch surface of Variable Structure Controller is designed by the method of self-adoptive configuring pole, so the performance quality of sliding mode is ensured. Accordingly, the Variable Structure Controller, self –adaptive control and fuzzy control are organic combined. The simulating results show that the controller is characterized by fast dynamic respond, strong robust, according to the application in the rotor magnetic suspension system. The result show that the controller can guarantee every state parameter in the rotor magnetic suspension system to trend the designed value.
Fuzzy-LQR Based Anti-Swing Control of Gantry Crane
Authors: Mu Chun Xin , Shi Ming Quan , Han Zhen Feng , Li Qi Min
Published: September 2014

The paper proposed a controller combined fuzzy logic with linear quadratic regulator (LQR). This controller was able to adjust the swing angle precisely during the lifting of gantry crane. It resolved the problem that the LQR controller mostly depending on the accuracy of the mathematical model. First, the paper analyzed the design method of the LQR, then an improved method combing with fuzzy logic was put forward in detail and a further simulation experiment was carried on the MATLAB. The result shows that compared with LQR, the Fuzzy-LQR method can drive the crane to destination in a shorter time and reduced the swing angle by a third.
Multi-Point Turning System for Flexible Robot Body
Authors: Yu Jing Jing , Zhang Ya Nan , Shen Lin Yong
Published: September 2014

The direction of the flexible robot body controllable feeding has been a problem. Such as the traditional industrial endoscope applications, it is only the head can be active deflection. If the endoscope want to feed into the deep and complex structure of the unknown cavity, it is necessary to give the outside pipeline route guidance, otherwise flexible body of the endoscope is difficult to active changing direction in accordance with the environments. In this paper, a mechanical system is studied to help flexible body enable to active steering and improving initiative and flexibility in an unknown space.
Simulation Experiment on Travelling Path Control of Differential Wheeled Pipeline Robot
Authors: Yong Qi Wei , Zhou Ren , Shui Ai She
Published: September 2014

For the travelling path control problem of differential wheeled pipeline robot, this paper proposes an approach to measure the velocities of drive wheels by photoelectric encoder, and gets trajectory curves of drive wheels on the experimental platform. Based on simulation of trajectory curves, fuzzy PID control of pipeline robot is fulfilled in straight travelling process. After PID parameters are implemented on the experimental robot fine control effectiveness is achieved.
Research of UV Curing PUA/EP Damping Coating
Authors: Tong Ya Jun , Peng Wei Cai , Huang Zhi Xiong , Shi Min Xian , Lv Xue Song
Published: September 2014

In this experiment, we examine the impact of photoinitiator and reactive diluents for the UV curing of epoxy resin and Urethane acrylate in detail, so as to provide a theoretical basis for obtaining a satisfactory light curing system. We conducted a number of UV curing experiments, discussed the key influencing factors of the success in Synthesis experiment, explored and researched the Reaction mechanism to some certain extent. The performance was tested after curing, according to the orthogonal experiment method, we analyses the effect of different factors.
The Design and Research of Multifunctional NC Maintenance Training Platform
Authors: Wu Nan
Published: September 2014

Nowadays though there are large varieties of NC maintenance training equipments in China, the high price as well as the lack of multi-function has made the existed equipments fail to meet teachers and students’ real demands during the NC maintenance training process, it is of great significance to design a special equipment which can combine the theory and practice during the teaching process. Based on the real demands during the teaching practice and taking the PLC assembling software as a core, the NC maintenance training equipment which can fulfill lots of functions including the machine installation and adjustment was designed in this article to enhance the teaching effectiveness of teachers as well as the practice abilities of students.
A New Type of Hybrid Learning Algorithm for Three-Layered Feed-Forward Neural Networks
Authors: Yu Yun Jun , Peng Sui , Wu Zhi Chuan , He Peng Liang
Published: September 2014

The problem of local minimum cannot be avoided when it comes to nonlinear optimization in the learning algorithm of neural network parameters, and the larger the optimization space is, the more obvious the problem becomes. This paper proposes a new type of hybrid learning algorithm for three-layered feed-forward neural networks. This algorithm is based on three-layered feed-forward neural networks with output layer function, namely linear function, combining a quasi Newton algorithm with adaptive decoupled step and momentum (QNADSM) and iterative least square method to export. Simulation proves that this hybrid algorithm has strong self-adaptive capability, small calculation amount and fast convergence speed. It is an effective engineer practical algorithm.
Analysis of Computer Terminology Translation Differences between Taiwan and Mainland China
Authors: Yao Qian
Published: September 2014

Under half a century isolation, mainland China and Taiwan have had some differences in their lives, customs, lifestyle and language because of the different political systems and historical factors, above which the difference of cross-strait computer terminology standardization differences between them is especially obvious. With the increase of all kinds of cross-strait exchanges, most of people become focus on promoting the standardization of computer terminology translation. This article puts forward specific measures to standardize computer terminology from the status quo of cross-strait computer terminology translation and the effects of the translation differences.