bluuebunny/crossref_metadata_2025 huggingface dataset:
Numerical Simulation on Moisture Influence to MSW Combustion
Authors: Yang Zhu Sen , Liu Xing Hua , Chen Shu
Published: August 2014

The combustion process of municipal solid waste (MSW) in a operating 750t/d grate furnace in Guangzhou was researched by means of numerical simulation. The influence of MSW moisture content on burning effect was discussed. The results show that: with the moisture content dropped from 50% to 30%, the heat value could be evaluated from 13.72% to 54.91% and the average temperature in the furnace could be promoted 90-248°C. However, the combustible gases and particle in the flue gas of outlet would take up a high proportion since lacking of oxygen would lead to an incomplete combustion. The excess air coefficient should be increased to 2.043~2.593 in order to ensure the flue gas residence time more than 2s and temperature in the furnace higher to 800°C.
Numerical Simulation and Experimental Research of Blade Erosion in Particulate Gas Turbine
Authors: Ding Zhi Ying , Zhang Zhi Ying , Fu Jun
Published: August 2014

Euler-Lagrange method is adopted to simulate 3-D viscous turbulent flow field of a one-stage gas turbine. Gas-solid two-way coupling is realized to analyze the trajectories and slip of 1000 beam particles, with diameter 5~50μm, then calculate the mass erosion rate based on the impact velocity and attack angles. Simulation exhibits: erosion wear is mainly caused by impact of larger particles (>10μm), erosion areas are mainly concentrated on the roots of pressure surface entrance of static blade and on the rear pressure surface of rotor blade. Comparing experiments are conducted between the substrate of X20Cr13 and the specimen with steel-bead injection. Experiment indicates: the attack angle corresponding to the maximal mass loss for substrate is about 40°, while the steal-bead injection is about 50°. Within the scope of the attack angle 20°~80°, the mass loss of the reinforced specimen is obviously less than that of the substrate, and under other angles of attack, the two kinds of material’s erosion tolerance are close to each other.
The Current Status of Development and Applications of Wave-Heated Discharge Plasma Sources
Authors: Cao Ming Lu , Cheng Jia , Han Chuan Kun , Ji Lin Hong
Published: August 2014

Wave-heated discharges are well known as high-efficiency methods to generate high-density plasma at low pressures. In this paper, three types of plasma sources based on different wave-heated discharge principles are introduced systematically. Electron cyclotron resonance plasma, helicon wave plasma, and surface wave plasma systems are promising to be the next generation of plasma sources to meet increasingly strict requirements in microelectronics industry due to their remarkable advantages over conventional plasma sources.
Hazard Evaluation of Carbon Steel Water Tube Boiler under Explosion Behavior
Authors: Du Hao Yang , Zhao Yong , Ren Zhen An
Published: August 2014

Physical explosion model is applied in a certain carbon steel vertical water tube boiler explosion analysis, all the safety accessories and records have been damaged and no data related with before explosion could be found. Boiler energy and operation pressure before explosion was estimated by the measurement of cast pieces. Hurt radius calculated by TNT equivalent method is in accordance with on site measuring, which proves that TNT equivalent method is applicable in carbon steel boiler explosion analysis.
Simulation of Geometry Parameters Optimization of Diesel Engine Combustion Chamber on Passenger Vehicle
Authors: Qin Si Nan , Feng Guo Dong , Liu Yu
Published: August 2014

Reduction of diesel engine emissions is now getting more and more focuses from automobile manufacturers as the legalization is becoming stricter. In this paper we use AVL FIRE to simulate and analyze the influence of ω-type combustion chamber shapes on raw emissions of a diesel engine. We get the conclusion that the trend of original exhausts, NOx and soot, decreases without power loss with the ratio TDD of throat diameter and depth of the chamber reducing. And considering the original emission control technologies of the experiment engine, a smaller ratio TDD will contribute to better emission.
Design of Sand-Blasting Lifting Equipment
Authors: Kang Xue Jun , Zhao Bing Jie , Long Bin
Published: August 2014

Due to pipe-laying process changed for Offshore Oil 201 pipelay vessel requires to place sand blasting machine equipment in suite place, to meet the sand-blasting machine to complete the process of laying pipe work cycle which demands for subsea pipelines sandblasting, then the sand-blasting lifting equipment was designed. The equipment consists of a hydraulic lifting platform system, rail trolley system and control system. The experiments showed that the sand-blasting lifting equipment could securely connect with sand-blasting machine, the sand-blasting machine could be lift fast, installation fast in the suite place, meeting the production requirements.
Design of VLM20-FMC-Type Inverted Spindle CNC Turning-Milling Compound Flexible Machining Cell
Authors: Zhou Bao Niu , Wang Qiu Hong , Wang Ling , Chen Yu Qing
Published: August 2014

Based on typical parts CNC machining technology solutions, using the inverted spindle, high-capacity storage automatic loading and unloading of the workpiece conveyor systems, temperature tracking control system, ladder-shaped bed base and other new technologies. A milling-turning flexible machining cell was researched and developed, which means once the piece was fixed, all the procedures, including turning, milling, drilling, reaming, tapping and other processes integrated processing, can be completed. As an advanced manufacturing mode, it was suitable for the efficient processing of short-sleeve-type parts, panel parts, etc.
Design of Small Multi-Function Chassis Brake Device
Authors: Lü Xiao Rong , Lü Xiao Lian
Published: August 2014

Brake problem for a small multi-function chassis of southwest hilly region, design a set brake device, especially suitable for walking speed slow small crawler chassis. The braking device has the advantages of simple and compact structure, light weight, convenient, simple and flexible operate, reasonable use spaces etc. . Through the braking test, proved that the brake braking performance is good, fully meet the requirements of the agricultural machinery braking performance.
Research on the Multifunctional Rotary Bowl Making Machine
Authors: Li Qing Xiang , Ding Shi Feng
Published: August 2014

For the needs of current growers, a multifunctional and continuous rotary bowl machine had been designed. The automatic bowl making technical scheme had been developed. The host structure and related parameters had been designed. The each part of the virtual prototyping was modeled and assembled by Pro/Engineer software. While simple in structure, the machine is highly efficient in bowl making and low in the damage rate. It can be widely used in the production of the required nutritional bowls including the fruits, flowers, corn and other crops etc.
Key Components Design of Vertical Shaft Impact Crusher Based on NX
Authors: Yan Chao Hong
Published: August 2014

This paper introduced the structure and working principle of the vertical sharft impact crusher. The determation of its main parameters is investigated in the first place.Design program and practical application of its key components is then described in detail.On the basis of above work,3D digital model of this crusher is also built up by using Siemens NX 7.0, which improves the design quality and efficiency.
Robust Design for Steering Mechanism by Using Points of Monomial Cubature Rules
Authors: Wei Dong Lai , Zhao Su , Chen Zhi Ying , Li Rong Bin
Published: August 2014

Steering mechanism is an important part of car driving system and the lock force is a key parameter to protect driver in the case of a frontal impact. But it is difficult to predict the range of lock force during impact since the material properties and friction of the system are variable in a certain range. Based on polynomial chaos expansion (PCE) and monomial cubature rules (MCRs), an efficient robust design method is presented to predict the lock force of a steering mechanism and select appropriate parameters for structure design. The advantage of the method is to reduce the intensive computational demand of uncertainty propagation by construction of PCE using points of MCRs, and the accuracy is enough for engineering problems.
Analysis of Harmonic Gear Drive Efficiency Based on the 3D Simplified Model
Authors: Wu Xiao Dong , Bai Meng Liang , Li Yuan , Cao Qian Hong , Du Xiao Chen
Published: August 2014

This study based on the finite element method, the type of XB1-120-100 harmonic drive output torque and input rotational speed impact on transmission efficiency has been analyzed. The results show that the efficiency of harmonic gear drive increases with the output torque increased, and it has no relation with input rotational speed. When the output shaft takes the value of rated torque (Tout=450Nm), the transmission efficiency of harmonic gear drive obtained by the finite element numerical simulation is 87.1%. This value of transmission efficiency is quite close to the type of XB1-120-100 harmonic drive efficiency (75%-90%). The above analysis method and results have a guiding significance for the transmission design and performance analysis of harmonic gear drive.
Analysis on Vehicle Vibration Performance Based on Yaw Rate Response Characteristics
Authors: Huang Bao Shan , Bao Fan Biao
Published: August 2014

Abstract: Automotive vibration characteristic analysis is of great significance, the vibration influence of ride comfort, the working efficiency and good health.Therefore, measures should be taken to reduce the vibration of the vehicle and keep the working environment of comfort, to ensure the driving personnel under the condition of the motion of the complex and manipulated with good psychological state and accurate sensitive reaction.
Research on Transonic Wind Tunnel Flutter Test for a Wing Model
Authors: Yu Li , Lv Bin Bin , Guo Hong Tao , Yan Yu , Yang Xing Hua , Luo Jian Guo
Published: August 2014

This paper adopts self-designed wing model to conduct flutter test on subsonic and transonic, and obtains flutter characteristic of the model, and the test results are used for calibration and verification of flutter procedures. The sub-critical extrapolation is used to obtain the flutter sub-critical parameters and the direct observation method is used to obtain comparison of results. Error of results obtained by the two approaches does not exceed 5%, and validates reliability of the sub-critical prediction approach in continuous adjusted dynamic pressure flutter test.
Impact of Lateral Motion of Wheelset on Wheel-Rail Contact Creepage
Authors: Zhang Hai , Xiao Qian , Lin Feng Tao , Hu Xiao Yi
Published: August 2014

Many researchers applied creepage to calculating creep force, and relation between creepage and creep force are very complex and it has been a major problem for solving rolling contact theory. The paper established the finite element model of wheel-rail rolling contact based on ALE method (Arbitrary Lagrange-Euler method) in ABAQUS, and research impact of lateral motion of wheelset on creepage of wheel-rail contact. Results show in the lateral movement value difference between their longitudinal creepage is small, and maximum error is less than 20%, there is more distinct change trend about lateral creepage in left contact area than one in right contact area, and spin creepage of left wheel drop down in 4mm lateral displacement.
Periodic-Doubling and Hopf Bifurcations of a Two-Degree-of-Freedom System with Elastic Constraints and Clearances
Authors: Zhu Xi Feng , Gao Quan Fu
Published: August 2014

Based on the study of a dual component system with elastic constraints, the stability and local bifurcations of the soft-impacts system, such as piecewise property and singularity, was analyzed by using the Poincaré map and Runge-Kutta numerical simulation method. The routes from periodic motions to chaos, via Hopf bifurcation and period-doubling bifurcation, were investigated exactly. In the large constraint stiffness case, the period-doubling and Hopf bifurcation exist in the two-degree-of-freedom system with elastic constraints and clearances. The clearances of the system, stiffness and damping coefficient of the elastic constraints is the main reasons for influencing the chaotic motion. The steady 1-1-1 period orbits or 2-1-1 period orbits will exist within a wideband frequency range and the value of velocity will be higher when appropriate system parameters are chosen.
Research on Synchronization Performance of Lock-Pin Synchronizer
Authors: Niu Qin Yu , Wang Kuan
Published: August 2014

A virtual prototype model of lock-pin synchronizer is built by using CATIA and ADAMS. The kinematics and dynamics simulation and analysis of synchronizer are carried out. The effect law between change of characteristic parameters, such as engine speed, cone radius, the input end of moment of inertia, friction coefficient of lock surface, and synchronization time are obtained. The reference for optimizing performance of synchronizer is provided by the simulation results.
The Analysis of Amphibious Vehicle Handling Stability Based on ADAMS/Car
Authors: Yan Zhi Ming , Cai Jian Jun , Qu Su Qin , Zhai Fang Fang , Sun An Rong , Zhao Li Jie
Published: August 2014

In this paper, a multi-body dynamics model of amphibious vehicle is established in terms of dynamic simulative software ADAMS/Car. The front and rear suspension system are studied and analyzed respectively. The handling stability performance of front suspension is simulated under step steering input, pulse steering input, steady turning, and meandered test in related to specifications. According to the simulation results, the handling stability of amphibious vehicle is evaluated objectively.
Dynamic Analysis on Flexible Cable-Driven Parallel Mechanism
Authors: Chen Qing Lin , Lin Qi
Published: August 2014

The interference between cables and surface of acutator limits the movement in the cable-driven parallel mechanism. The mechanism with fixed hinge can’t absolutely avoid the interference point of the track when using linear programming method. One new method, named as distant interference, was proposed to pick out all the interferential points of the track. Based on the principle of symmetrical force, the alteration to position of the six fixed hinges and two extensive hinges eliminated the interference. Through the simulation of combined spiral movement, the workspace of the flexible cable-driven parallel mechanism is larger than that of the mechanism with fixed hinge and reduce the interferece of long and big track. Compared with the original mechanism, the value of cables force in the flexible cable-driven parallel mechanism is smooth, continous and no sudden change.
Analysis and Optimization of Bracket of Slag Well Based on ABAQUS
Authors: Sun Shi Chao , Li Peng Fei , Zhang Shi Long , Wang Quan , Zhao Fu
Published: August 2014

This paper use Pro / E for the solid modeling of bracket of slag well firstly,Then import it into Abaqus, applied stress and displacement constraints, after calculation according to the calculation result Optimized and improved it accordingly and corresponding it.
The Study on Control and Riding Comfort of Air Suspension
Authors: Yang Qi Yao , Zhang Jian Zhong , Ma Yu Ping , Wu Yue Bo , Zhang Wen Na
Published: August 2014

In order to improve vehicles comfort, electronically controlled air suspension is taken as study object. We designed the PID controller, which can regulates stiffness and height of air spring. Taking stiffness of air suspension as control variables, and the acceleration of the sprungmass as target values, one-quarter vehicle model of air suspension for bench test is established, then PID control system was tested on the bench.The bench test results show that the PID control algorithm can improve vehicle ride performance.
Analysis of the Blade Structure on the Influence of the Particle Movement
Authors: Huang Lei , Lei Jing Fa , Li Hui , Chen Cong Sheng , Chen Xue Hui
Published: August 2014

This article studied the blade structure on the influence of particle movement, as well as the force between blade and particles. Cone mixer is one of the commonly used equipment for powder mixed, usually, its blade’s movement driven by motor to stir particles, the structure of the blade to powder mixture has important effect, thus it’s important significance to explore the structure of the blade. The result based on the discrete element method to calculate the particle motion and stress with different blade structure, provides important help and reference for the design of the mixer blade.
Analysis on Kinematics between Piston and Cylinder Block in Swash-Plate Axial Piston Motor
Authors: Shi Jin Yan
Published: August 2014

Analysis was carried out to the kinematics between piston and cylinder block in the axial piston motor. And the formula of displacement, velocity and acceleration of the movement of piston in the cylinder block were given, and some suggestions were also presented to help the design of the axial piston motor with high speed and high pressure in the further.
Gear-Drive Parametric Design with Femap Express Stress Analysis
Authors: Jiang Hong Chun , Wang Xiao Lei
Published: August 2014

Modeling and finite element analysis functions were combined in Solid Edge to optimize gear parameters. Gear parameters optimization objective and procedure in different conditions were summed up. A complete Excel file was created. An involute gear parametric model was established which was interlinking with the Excel file. And the model’s accuracy would not alter with the diameter’s change. The wizard software for gear drive design and parameter optimization was developed on platform of Solid Edge by Visual Basic tool. This application can guide users getting the initial parameters and optimizing the parameters by the circling method of diminishing parameters, analyzing the precise gear root stress with Femap Express module, and diminishing them again. Users can get a gear model which has a smaller diameter and smaller module and satisfies strength demands.
The Construction of Sweep Surface Based on Precision Control
Authors: Xu Bai , Cheng Xiao Sheng , Dai Ning , Tang Yue Hong
Published: August 2014

Sweep is useful in CAD modeling process. But its precision is hard to control when we use discrete modeling method. In this paper, the sweep surface is constructed by projected-based approach. Vector and distance methods are proposed to detect the local self-intersection of sweep surface. Beside these, it gives the precision control methods in the corner of sweep surface to improve the precision. Finally, we discuss the factors that influence the precision of sweep surface.
Quality Management and Control of Mold Manufacturing Products Based on SPC
Authors: Dong Hai , Liu Liang Yu , Liu Jin Hua
Published: August 2014

According to the characteristics of quality management and control in mold manufacturing process, this paper adopts SPC technology to solve the problem of mold production quality control. First of all, it expounded the mechanism of SPC to control the quality and take the machining process of the stamping die mold as an example, using statistical techniques to control the production process quality effectively; Secondly, by using control chart, whether the production process in a state of statistical control could be quickly determined, and the fixture loosening caused by abnormal production would be found and eliminated timely; Finally, through the process capability analysis, the level of process ability could be timely understood, and then two effective measures of improving production processes were put forward in order to reduce the feed rate and improve the process ability of workers.
Study on Quality Control Method in Multi-Specification and Small-Batch Production
Authors: Dong Hai , Tong Qing Quan , Wang Yi Kai
Published: August 2014

Aiming at the problem of less quality characteristics data in multi-specification and small-batch production, matter-element theory was applied to adjust similarity of factors affecting the quality during the processing, thus similar processes was divided and data shortage problem was resolved. In addition, the relative range method was applied to translate characteristics data, thus drawing the control chart to judge process control state.Through the analysis of a case,the validity of quality control method was verified in the multi-specification and small-batch production.
The Third Party Inspection Research of Valves for Liquefied Natural Gas Project
Authors: Xu Wei Pu , Wang Lie Gao , Ma Hong Bo , Liu Yi Ting
Published: August 2014

This paper expounded the necessities of third party inspection for liquefied natural gas project valves. The third party inspection methods are introduced in detail. Tests and operations on each item are analyzed.
Implementation of Synchronous Mechanism in Collaborative Process Planning
Authors: Su Ying Ying , Zhang Feng Rong
Published: August 2014

Computer Supported Cooperative Work (CSCW) has been considered as a promising approach for developing process planning systems and optimizing process plans. Process planning based on CSCW is inevitable for reducing manufacturing preparation time and costs through concurrent and collaborative engineering. Since process planning is a huge and complex job, several process planners should execute planning together. Therefore, information exchange in collaborative process planning is very frequent and the synchronization for each user has a decisive influence in collaborative process planning system. In this research, expression of process documents based on XML is studied and the method that process documents are mapped into XML documents is described. Implementation of synchronous mechanism is presented to develop the system of collaborative process planning.
Pareto Chart Based on Fuzzy-PPI and its Application in Analysis on Quality Data of Equipment Maintenance
Authors: Ye Wei Min , Liu Wo Ye , Zhao De Yong , Gao Cui Juan , Xie Yong Fen , Yu Chen Chen
Published: August 2014

To solve the drawbacks that the existing Pareto chart do not consider the fuzzy attribute of quality and imbalance of the improvement opportunities for quality defects, the nonconformity membership analysis method was introduced to lead a classification analysis on quality defects data, which increased the flexibility of data analysis, and Pareto priority index was introduced to assess improvement opportunities for quality defects, which increased the rationality during decision-making for quality defective items to improve. The two ways were both integrated to the analysis instance of equipment maintenance quality data based on fuzzy weighted Pareto chart, then weights and dynamic threshold were set to get different results of the Pareto analysis. The presented method can provide effective method support for organizations to scientifically analyze equipment maintenance quality data and accurately determine the direction of quality improvement.
Development Model of Engineering Manufacturing and its Application
Authors: Yu Ying Hong
Published: August 2014

In recent years, with the continuous improvement of production capacity, manufacturing industry restructuring and achieved great results, significantly increased the proportion of high-tech industries, some traditional industries has continued to decline. Manufacturing is the material basis of our national economy and the main industry, which largely determines the level of development of comprehensive national strength. This has brought great difficulties to the economic modeling and forecasting system. This paper presents an improved modeling and forecasting methods, recombinant methods by introducing chain data and add data growth economic indicators in an artificial neural network training, the time series data input window to solve practical engineering problems forecasts.
Quality Monitoring and Control of the Publicity Translation System Based on Cognitive Mechanism
Authors: Chen Ke , Li Fang Lei
Published: August 2014

Based on innovative design generation process model and innovative mechanism, this paper designs an evaluation system of the existing publicity translation frame so as to create an appropriate innovative design to implement quality monitoring and control into practice; at the same time, guided by the innovation design cognitive experiment, it also illustrates the formation of quality monitoring and control on publicity translation system. The cognitive motivation of innovation and strategy selection are discussed, and subsequently Xi'an urban publicity translation system innovation design is used as an example to confirm the presentation and the feasibility of the generated creative solutions.
Optimizing the Flow Velocity of the Assembly Line: A Cognitive Neuroscience Perspective
Authors: Ma Qing Guo , Pei Guan Xiong , Qiu Wen Wei , Hu Lin Feng , Guo Jun Feng , Yao Xiao Hui
Published: August 2014

Human resource is an indispensible element of industrial engineering. Based on Neuro-Industrial-Engineering, we combine the cognitive neuroscience and information technology with cybernetics, and advance a new intelligent human-machine system. Starting with neurophysiological signal (such as electroencephalogram) collection, the system is capable of real-time monitoring and online assessment of the workers’ physiological states. Based on the physiological information and the production information, the system could detect the bottleneck of the assembly line and realize automatic control of the assembly line’s flow velocity. It largely enhances the response speed of the system, and increase the productivity as well as product quality, which is much more effective than the Toyota system in which the assembly line is only stopped when a specific production accident has been detected during production.
Parameter Optimization Method of Screw Axis with Variable Diameters and Different Pitches Based on PSO-BP NN
Authors: You Zhang Ping , Zhang Wen Hui , Ye Xiao Ping
Published: August 2014

Parameter optimization of screw axis with variable diameters and different pitches is very important to improve the performance of material conveying equipment. But it is a trouble thing with classic theory modeling because of the complexity of material fluidity and screw structure. A PSO-trained BP algorithm is applied to establish the screw axis parameter optimization neural network (NN) model.Taking asphalt transfer vehicle as an example, PSO-BP NN is applied to set up the relationship between input parameters and aim parameter. Practical example shows that the PSO-BP NN has faster convergence and higher computational precision than the other three investigated algorithms, and it provides a powerful parameter optimization approach for screw axis with variable diameters and different pitches.
Genetic Algorithms for the Optimum Design of Multi-Point Gear-Meshing Flexible Drive
Authors: Zhang Jie
Published: August 2014

BF Multi-point Gear-meshing Flexible drive as research object, Established calculation formula of Wheel pressure on Multi-point Gear-meshing Flexible drive and optimization mathematical model, By using adaptive genetic optimization at drive wheel pressure uniformity optimization of Multi-point Gear-meshing Flexible drive, the result is good, Non-uniformity of wheel pressure drop greatly, Reduce the wear between the Track and the inner orbit of gear, the reliable foundation are provided to improve the structure design for Multi-point Gear-meshing Flexible drive, It has high practical value.
The Research on the Digital Simulation Software of the Planer Double-Enveloping Toroidal Worm
Authors: Wen Rong Tian , Xu Hua , Wen Qing Ming
Published: August 2014

The digital simulation is the key on the research of the toroidal worm. The simulation technology is a useful tool on the design, manufacture and development of the toroidal worm. The paper analyzed the key on the building of the simulation software of the planer double-enveloping toroidal worm, the software’s function and its effect in detail.
A Three-Dimensional Distribution Model of Pressure on Inner Surface of Elbow Pipe Based on FLUENT
Authors: Lu Xiao Yang , Zheng Wei , Huang Li Li , Zhou Yong , Li Xin Guang , Zhu Hong Liang
Published: August 2014

Using the methods of dimensional analysis and the FLUENT analytic software, a quantitative description method is built; the influents of parameters, including the degree of curvature k=R/d, fluid density ρ, axial angle α, circle angle β, fluid outlet pressure P0 and fluid velocity v on the distribution of pressure on inner surface of elbow pipe are studied from the simulation results; Finally, a three-dimensional distribution model of pressure which is considering the fluid characteristic and the elbow pipe geometric parameters is built by fitting the simulation data. The research conclusion lays the groundwork for strength check and structural design of the elbow pipe.
Single Machine Due Window Assignment and Scheduling with an Optional Maintenance Activity
Authors: Li Wei Xuan , Zhao Chuan Li
Published: August 2014

This paper considers single machine scheduling with general position-dependent and job-dependent aging effect. All jobs share a common due window, and an optional maintenance activity (OMA) is taken into consideration. The processing time of a job is a non-decreasing function in its position. Such category of maintenance activity is called the OMA since one can determine the position and the actual duration of it. The objective is to determine the optimal due window position, the optimal location and duration of the OMA, and the optimal job sequence so as to minimize the total of earliness, tardiness, due window starting time, due window size, and the OMA duration related costs. We show that the considered problem can be solved in polynomial time.
Based on the State of Emergency Safety Assessment Method of Airlines Dispatch Operation
Authors: Yang Chang Qi , He Wei
Published: August 2014

The research of this paper is based on the domestic airline operational control that exist variety of factors under the state of emergency, such as emergent meteorological conditions, flight flow and alternate airport security conditions, the potential human factors and organizational management operation, in order to establish the correct hierarchy model, we analyzing the inherent correlation of these explicit and implicit factors which impact on the dispatch release work, then apply these factors to the Bayesian network structure and use Gaussian normal distribution to solve mean value and mean square error to determine the weight for influence factors so that run a aviation safety assessment for dispatch operation, it can help the company to propose targeted security operating strategy.
Dynamic Game Algorithm for Allocation Model of Human Resource Based on Multi-Projects
Authors: Zhu Xu Ying , Hou Kai Hu , Chen Cheng , Zhang Fei , Cao Li Yin
Published: August 2014

This paper focuses on the human resource allocation problems in multi-projects.The model of multi-project human resource allocation was established.Dynamic programming and matching game theory was adapted,a real-time dynamic game algorithm was proposed.the algorithm has adapted multidimensional state variable input method.In the stage 0, input A1, A2, A3,…,An and get the optimal variables’et by the filtration of the optimal function set.These variables enter the stage 1 by the help of the state transition function.Under the limit of B, these variables are filtrated by the optimal function to get the optimal strategies.As variables, these strategies enter the stage 2, and so on.Finally,the optimal scheme of the resource allocation between each other has been formed.Through the practical example test,the model and algorithm was found feasible and valid.
Spare-Part Optimization Modeling for a Mixed Multi-Echelon Inventory System
Authors: Zhao Jian Min , Jiang Xin Liang , Ni Xiang Long
Published: August 2014

Spare inventory optimization is one of the important problems for a maintenance facility to repair equipment in a high efficiency and low cost manner. In this paper, a model is developed to solve the problem of spare parts decision for complex system maintenance with mixed multi-echelon spare inventory. Spare parts are categorized into three types in terms of number of inventory echelon. Spare support availability and costs are analyzed respectively for each type.
The Study of Reliable Model on the Maximal Forecast Time of Complicatedly Mechanical System
Authors: Liu Zhan Jun
Published: August 2014

In the study of complicatedly mechanical system, the conventional model of single reliable grow is only used to study time function relation of lapse moment and system reliable grow .In order to study the affect of different lapse modes and mend measures to reliable grow of system, the model of mix reliable grow is proposed with the maximal forecast time of complicatedly mechanical system. The project background and learn algorithm of model is in detail discussed, the mimic example of reliable model of the maximal forecast time of complicatedly mechanical system is showed.
An Agricultural Vehicle Frame Load Characteristic Agricultural Experimental Research
Authors: Xiang Zhong Ke , Xiang Fei Fei , Wang Hua Zhong
Published: August 2014

Assess the actual stress situation by electrical measuring test of prototypes in the Milford Proving Ground, Including four cylinder engine bend and torsion static test load 10 t, 17t ; Proving ground inland various pavement dynamic test, According to the static data analysis results, the stress mainly concentrated in the cab and carriages, there is also the location of the crack appears most, and each point in the dynamic test of dynamic load is large, dynamic stress is one of the largest in the washboard road test.
Application of DEA Model Based on FCE in the Cigarette Packaging System Mode Evaluation
Authors: Wang Wei , Yang Wei Ping , Liu Ge Yi
Published: August 2014

With the development of modern logistics system, the automatic logistics distribution centers have been built in most tobacco enterprises. The packaging system plays important role in the distribution center, it is necessary to construct a set of scientific method to evaluate the packaging system mode. According to the real situation of tobacco logistics distribution center, the cost and benefit are set to the general goal. For these three modes of packaging system, packaging by hand, automatic packaging and packaging by heat-shrinkable material, the evaluation index system and hierarchical structure are built. Refer to the hierarchical chart and the principle of AHP, the weight of each index is calculated. On the basis of weight that worked out by AHP, the final evaluation result can be found and analyzed follow the principle of fuzzy comprehensive evaluation. Finally, reference the consequences of the FCE, the DEA model based on FCE is used to enhance the integrality and systematic of the evaluate result.
Reliability Analysis for One-Shot Product with Weibull Lifetime Components ─ An Empirical Study
Authors: Pan Chung Chu , Wang Yan , Chen Zai Bo
Published: August 2014

When the device is inspected only once, there are only two possible statuses either functioning or failed at the time of inspection. In this paper, we consider a series system consisting of two components with lifetimes following weibull distributions and a competing risks model is used to study the series system for quantal-response data. Based on the quantal-response data, the maximum likelihood estimates of parameters of weibull distribution are derived. The model is illustrated using a practical numerical example of two-component series products, and the statistical properties of the maximum likelihood estimators were studied via Monte Carlo simulation under three-stage inspected scheme for various sampling sizes. This study verified that the model is practical. This research results can be applied to the reliability analysis of one-shot products with Weibull components lifetime distribution and the stockpile storage performance test.
Research on the Application of Activity-Based Costing Based on the Concept of the New Accounting Standards
Authors: Cui Qiu Yue , Dong Xue Ren , Ma Yu Zhen , Li Long
Published: August 2014

We encountered many obstacles in the implementation process of Activity-based Costing. But the new accounting standards fully embody a new accounting concept, coinciding with the concept of Activity-based Costing, and it brings a new opportunity to implement Activity-based Costing. The paper discusses the content.
Maintainability Modeling of NC Machine Tools Based on Repair Time
Authors: Xue Yu Xia , Shen Gui Xiang , Zhang Ying Zhi , Guo Li Quan
Published: August 2014

According to 62 field fault data from a certain type of 8 NC machine tools, maintainability distribution model is established based on the repair time. Hypothesis testing shows that the repair times of NC machine tools fit mathematical model of lognormal distribution. This provides the basis for maintainability assessment of NC machine tool as well as the development of maintenance strategy in the future.
Single Machine Scheduling and Due Date Assignment with Past-Sequence-Dependent Delivery Times and Position-Dependent Processing Times
Authors: Zhao Yu Fang
Published: August 2014

This paper considers single machine scheduling and due date assignment problems in which the jobs need to be delivered to customers after processing. It is assumed that the delivery times are proportional to the length of the already processed jobs, and a job's processing time depends on its position in a sequence. The objective functions include total earliness, the weighted number of tardy jobs and the cost of due date assignment. We analyze the problems with two different due date assignment methods and conclude that the problems are polynomial time solvable. We provide a dynamic programming algorithm with O(n3) times for the problems.
Research on Influencing Factors of Knowledge Sharing in Pharmaceutical Supply Chain Based on ISM
Authors: Wang Yan Gang , Zhang Dong Li
Published: August 2014

Analyzing the obstacle factors of knowledge sharing in pharmaceutical supply chain with interpretative structure model(ISM) systematically,and giving the tactics for overcoming and improving aiming at the key primary obstacles.Having important practical significance to promote knowledge management in pharmaceutical industry and enhancing the corecompetence of transformation organization.
A Study on Performance Evaluation of Green Supply Chain Management Based on DEA
Authors: Jia Hui Min , Yu Kai Chao , Zhang Jin Chang
Published: August 2014

Green supply chain is necessary for economical sustainable development. In this paper, green supply chain and traditional supply chain are compared and analyzed, characters of green supply chain are discussed, and the harm of traditional supply chain to the environment is very serious. Then, DEA model is introduced to evaluate green supply chain. Based on the above, this paper finds out effective non-DEA enterprises by bringing the performance indicators of 12 enterprises into DEA model, which can provide the reference for enterprises to improve operating mode of the supply chain or develop a new green supply chain.
Adaptive Mobility Management Framework Using Active Proxy Node
Authors: Luo Yuan Jun
Published: August 2014

In mobile computing, mobility management is a fundamental issue. The substance of mobility management are proxy and forwarding based model to achieve, the difference of a variety of technologies are the choice which proxy and forwarding entity is chosen and what strategy to implement proxy and forwarding services. The paper propose a basic framework based on mobile agent technology forwarding proxy migration, combined with a mechanism for automatic proxy service deployment for mobile environments by using active network nodes, collaborative support to complete the optimization proxy services, which has a unique advantage of dynamic execution, reducing the switching overhead, improving efficiency of the system and showing good applied characteristics.
Design and Analysis of a New Mutual Authentication Protocol for RFID
Authors: Fu Qi , Tan Jun , Li Hong
Published: August 2014

This paper proposes a lightweight mutual authentication protocol for RFID. Based on the simple bit operations, it creates the random number N1 on the tag and the identifier RID on reader to protect the transmission of information, and proves the protocol security at the end. The results show that the proposed protocol can meet the security requirements of confidentiality, integrity, and traceability in RFID applications. Furthermore, the protocol can resist attacks of tracking, eavesdropping, retransmitting and the denial of service, which makes up the security defects mentioned on this paper.
Study on the Alignment of New Product Development and Supply Chain
Authors: Wang Jie , Chen Jie
Published: August 2014

Based on the review of related literature about the alignment of new product development (NPD) and supply chain (SC), the related decision variables of NPD and SC are summarized. In order to explore the alignment relationship between NDP and SC, we propose a study framework and the some relationship assumptions. Taking use of questionnaire investigation and Structural Equation Modeling, the relevant assumptions are verified and the mechanism and strategy of the alignment of NPD and SC are explored for Chinese manufacturing enterprises. The research result shows that the modularity and variety of NPD have close relationship with the complexity of supply chain configuration, collaboration and coordination. And the degree of the alignment has an important influence on the supply chain performance of the end product. The relevant conclusions would provide some theoretical reference and practical guidance on the decision of aligning the NPD with SC.
Study on Collaborative R&D Strategy between Manufacturer and Supplier Based on Uncertain Demand and Exchange Rate
Authors: Wang Rui , Li Xi Feng , Zhao Shuang , Wang Jiang Yun
Published: August 2014

Imbalance of supply and demand relation in international market and the increasing volatility of exchange rate force the manufacturer to make reasonable R&D (Research and Development) strategy under turbulent market environment, which has become particularly important to enhance the international competitiveness. This paper presents a fuzzy random variable with multifold uncertain attribute to depict the increasing fluctuation of the market demand and the exchange rate, and thus construct two bilevel programming models with fuzzy random variables, which aims to compare two different R&D strategies: manufacturer involved in R&D independently and joint R&D of manufacturer and supplier. According to the characteristics of the two models, this paper designs the corresponding hybrid intelligent algorithms. The results of the two models in numerical examples show that: collaborative R&D strategy between manufacturer and supplier is better than manufacturer’s independent R&D strategy and the optimal proportion of R&D in this paper can be obtained: the supplier shares 50% of the total R&D cost.
AUV’s Executer Fault-Tolerant Control Based on ADRC
Authors: Wan Lei , Zhang Ying Hao , Sun Yu Shan , Li Yue Ming
Published: August 2014

An autonomous under vehicle (AUV) should have the ability of self-saving and finishing the certain targets when faults occur, which means that an AUV must have the ability of fault-tolerant control. In order to make it possible, one AUV’s fault-tolerant control strategy is made, which is based on the active disturbance rejection control (ADRC). In this paper, the control method in normal and the one in fault are offered respectively. Besides that, one simulation compared with PID control is made. The simulation results show the AUV’s fault-tolerant control strategy based on ADRC can achieve the goal and has better control results to restrain the shock, overshoot and other phenomena caused by disturbance than the strategy based on PID.
Robot Teleoperation System Based on Web and Kinect
Authors: Xu Can , Zhang Jing Ru , Chen Ben , Xie Tao
Published: August 2014

The technologies of Web-based teleoperation and somatosensory Human-Computer Interaction have become a hot technology in recent years. Combining with these two technologies, this paper is based on the web server, using Kinect as the front-end of the robot teleoperation human-computer interaction equipment to acquire human-interactive data. Data transfer by using the WebSocket based on HTML 5 and establish the model by using WebGL to realize the remote teleoperation of robot. After the test of the function and performance of the system, indicating the practicality of the system.
The Application of Automatic Cutting Technology to Medium Thick Coal Seam in Shendong Mine
Authors: Duan Qi Tao , Zhou Chang Tai , Xu Zhu He
Published: August 2014

During coal mining, the working space in thin and medium thick coal seam of 1.5-2.0m is narrow, resulting in walking and working hard for workers, labour-intensive, low degree of security. Therefore, this paper presented automatic cutting technology and explained the key composition and working principle in detail, followed the field practice in working face of 22-204, with a satisfying result.
Study on High-Speed Switch Shifting Solenoid Current Control Technology for Automatic Transmission
Authors: Li Chun Fu , Li Yan Qin
Published: August 2014

The purpose of the solenoid current control is to decrease holding current of the solenoid by selecting suitable frequency and duty, to keep the solenoid opening reliably for a long time and reduce power consumption and improve the solenoid close feature. In this paper, the high frequency signal in oil pressure holding process is determined by theoretical analysis and experimental study. The purpose of the study is to determine the ideal current in the working process of the solenoid.
The Design of Plate Mills Hydraulic Lubricating and Monitoring System
Authors: Wu Zhi Qiang , Zhao Jun Fang
Published: August 2014

Plate mills hydraulic system is made up of several hydraulic stations, lubrication stations and grease stations, these hydraulic stations and lubrication stations are distributed around the mills. Each hydraulic station possesses qualities of successive long working time, high reliability and signal complexity, and it can satisfy diverse demands of high grade pressure or temperature control, etc. This paper is based on these demands, assembling control missions of hydraulic and lubricating stations. Several PLC S7-300 were chosen to match the need of controlling mills hydraulic and lubricating system for a certain plate factory, and the HMI monitoring system for mill hydraulic and lubricating stations was developed by WINCC, which achieved central control and monitoring the hydraulic and lubricating system of plate mills.
Design of Human-Machine Interaction for Motor Controller of Vehicle
Authors: Zhong Tao , Fang Hai
Published: August 2014

The research on the motor controller is the key link in the process of the development of electric vehicles. The motor controller can make the data exchange between the power systems to meet the requirements of simple and rapid with high reliability, strong anti-interference ability, good real-time performance, error detection and good isolation capability, which plays a vital role in the development of electric vehicles. High reliability of motor controller is very important, in order to work safety, besides the reliable software and hardware system, it is necessary to control the motor controller with some convenient devices. Handheld programmer of electric vehicles has been developed for this purpose. For the operator operating the equipment effectively and conveniently, provide effective safety guarantee for the controller, programmable handheld programmer can be operated simply through buttons on the programmer by operators, so as to control the operation of motors and the operation of electric vehicles.