Finite Element Analysis of Top Cover Bolts of Hydraulic Turbine Based on ANSYS Workbench by ZHAO Junjie, YU Bo, OU Qian, SU Ting, WANG Yi

“…The working conditions of the hydraulic turbine are frequently changed.If the connecting bolts between the top cover and the stay ring are subjected to a load,and they are loose or broken,the serious consequences such as the plant flooding and even the machine destruction and death may occur.This paper establishes the calculation model of the connecting bolts between the top cover and the stay ring of hydraulic turbine by the ANSYS Workbench software,and calculates and analyzes the maximum stress of connecting bolts and the position of the dangerous section under different load rejection conditions by the finite element analysis method.The calculation results show that:when the load rejection is 82.5 MW,the stress on the connecting bolts is the largest.Therefore,the ultrasonic online monitoring and early warning system shall be applied to monitor the most dangerous bolts in real time to prevent accidents.…”
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Comprehensive Error Modeling and Analysis of Face Gear NC Grinding Machine based on Multi-body System Theory by Ming Xingzu, Wang Wei, Zhao Lei, Li Mande

“…By using the theory of multi-body system and Denavit-Hartenberg homogeneous coordinate transformation,the geometric error and thermal error of face gear NC grinding machine is analyzed.According to the principle of face gear meshing and production mechanism of the grinding error,the mathematic model of comprehensive error contains geometric error and thermal error of the face gear NC grinding machine tool is established.Based on the little error assumption and using Matlab software,the error expression which contains six degrees of freedom is got,additionally,the relationship between the six degrees of freedom and six errors which produced by the grinding wheel spindle movement is analyzed and validated.The basis for improve the machining accuracy of gear and error modeling is provided.…”
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Research of Structural Design of Reinforcing Ring of Belt Conveyor Large Torque Drive Drum by Wang Chunhua, Fan Changda, Cheng Jiangtao, Tang Lisong

“…The finite element model of belt conveyor drum is established.And the stress and deformation of with and without reinforcement ring and different structures of reinforcing ring are analyzed by using finite element analysis software ANSYS.The corresponding relation between the different structures of reinforcing ring and the maximum deformation of drive drum is obtained after modeling and calculation.And the function relation between different structures of reinforcing ring and maximum displacement is fitted by using MATLAB,and the structure of reinforcing ring with minimum displacement can be selected according to the function.The theoretical basis and thought are provided for the standardized design of reinforcing ring of belt conveyor drive drum.…”
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Analysis of the Braking Performance of the Hydraulic Retarder in Mining Dump Truck based on AMESim by Deng Lin

“…By using the simulation software AMESim,the brake whole model is built,and a retarder under different conditions are analyzed,the result of simulation is compared and analyzed,the further research of the hydraulic retarder braking performance of the system is carried out. …”
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Study on Fluid Characteristic of New Composite Stern Bearing by Shenwen Long, Youqiang Wang, Yabo Zhou, Cong Wei

“…In order to solve the problem of wear and scorch caused by the stern bearing in the start-stop phase， a new type of bearing with a combination of spiral cavity and ladder cavity is proposed based on the finite element analysis software Fluent. Firstly， the flow field analysis is used to simulate the pressure of the traditional bearing and composite bearing. …”
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THERMAL STRESS ANALYSIS AND FATIGUE CHECK OF MAIN STEAM SAFETY VALVE FOR NUCLEAR POWER STATIONS by ZHANG QiangSheng, CHEN TianMin, ZHU Bo, SHEN Wei, LI ZhongXun

“…Temperature field and thermal-structure coupling stress field calculation were conducted to a main steam safety valve prototype for nuclear power stations using finite element software Ansys,and the stress of the valve subjected to operating pressure load and thermal stress was in compliance with the stress evaluation criteria. …”
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Life Cycle Cost Comparison Study of PV and Concrete Rooftop in Jakarta by Religiana Hendarti

“…To accommodate those objectives, the calculation utilized a software called “Building Life Cycle Cost (BLCC) version 5” which is a product of the US Department of Energy. …”
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Precision Compensation Method of Tooth Profile in Form Grinding of Modified Helical Gears by Zhang Hao, Su Jianxin, Deng Xiaozhong, Han Zhengyang

“…The coupling relation between machine position error and tooth profile error is obtained by the numerical simulation. A software for adjusting the precision of form grinding tooth profile is developed, and the forming sand profile and tooth profile precision adjustment parameters corresponding to the helical gear modification are calculated. …”
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Modeling and Contact Analysis of Circular-arc-tooth-trace Cylindrical Gear for Manufacture by You Yunxia, Hou Li, Yan Lili, Sun Zhijun

“…A modeling method for manufacture of circular-arc-tooth-trace（CATT） cylindrical gear is proposed by analyzing the generating theory and meshing principle of gear and rack.Based on the secondary development of UG software,the three-dimensional model of CATT cylindrical gear for manufacturing is established.The maximum contact stress of CATT cylindrical gear with different tooth line radius are analyzed under the same condition by using the method of finite element analysis.Reveal The influence of the tooth line radius on the contact line length and the maximum contact stress of CATT cylindrical gear and the influence law curve of the maximum contact stress are obtained,which provides the necessary theoretical basis for the design and engineering application of the CATT cylindrical gear.…”
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Calculation Method of Transmission System Time Between Overhaul with Considering Running Time by Wenbin Pan, Weizhen Liu, Huaipeng Li

“…By establishing the mathematical model of helicopter transmission system running time and flight time, engine working time, the time ratio relation between running time and flight time is deduced, that is, conversion coefficient. Using Minitab software to complete the data calculation, the running time of the transmission system is converted into the corresponding flight time. …”
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Strength and wear analysis of CVT metal sheet at high speed by XIANG Hongwei, HE Pengfei, MENG Shaoming, PENG Tao

“…Studying the strength and wear of metal strips and metal sheets under high-speed conditions is of great significance for the application and development of CVT in electric vehicles.MethodsThe mechanical model of the metal strip under high-speed conditions was established, and the influence of different speed ratios and rotational speeds on the stress and wear of metal sheets was simulated and analyzed by the Ansys Workbench software, and verified by simulation tests.ResultsThe results show that the stress of the metal sheet increases with the increase of the speed ratio at high speed, and the side wear of the metal sheet increases.…”
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Optimization Design of Mixed Discrete Variable based on Variable Transformation Method by Lian Qinghui, Lan Zhaohui

“…The deficiency of mixed discrete variables for the current optimal design is analyzed.A variable transformation method for mixed discrete variables is proposed,that is nominal variables are set,and software or algorithm of continuous variables could be called for mathematical model.The variables transformation program is written according to their relationship with real variables.Then,the nominal variables are put into the objective function and constraint condition,and the optimal solution is got.The variables of the optimal solution and real variables have the same type,so,it needn’t to be rounded and ensured the accuracy of the optimization.The variable transformation method is applied into optimization design of spur gear transmission,and compared with the existent ordinary optimization methods.The obtained results show that the variable transformation method is simple and feasible and the optimum solution of the variable transformation method is superior to solutions of other algorithm.…”
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Development and Test Analysis of RV Reducer Experimental Rig by Chen Liguo, Peng Peng, Wang Jiugen, Zhang Jing

“…The RV reducer test rig mainly consists of mechanical system,measurement and control system and software system,which can acquire the mechanical parameters of the RV reducers and the signal of fault quickly and automatically. …”
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A New Measuring Method of Manufacturing Error for Cycloid Gear of Robot RV Reducer by Zhou Junxiang, Li Tianxing, Wei Bingyang, Deng Xiaozhong, Zhou Guangcai, Wang Guofeng, Xing Chunrong

“…The measurement path is planned,and measurement driver software is developed. By using the meshing principle of the pin-swing drive and the measuring theory of the complex surface,the manufacturing error of the cycloidal wheel is obtained. …”
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Structural Design and Analysis of Adaptive Pipe Diameter Full Drive Pipeline Robots by Zheng Likang, Feng Yongli, Li Zhanxian, Liu Zhenhua

“…Secondly, the scheme design and force analysis of the supporting mechanism of the robot are carried out, and the geometric constraints of the overall structure of the pipeline robot and the movement constraints in the bend are analyzed. Finally, Adams software is used to simulate the proposed scheme to verify its passability in the pipeline.…”
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Selection and Analysis of the Spring Force of Roller Clutches by Yu Xin, Xue Jinxue, Gao Fei, Xi Shiping, Zhang Kai

“…Then, the finite element software is used to analyze the pressure, response time and other contact characteristics of different spring forces in the clutch engagement and overrunning state, compared with the theoretical calculation and analysis. …”
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On α-Multiplier on Almost Distributive Lattices by Ying Wang, Abid Mahboob, Abdul Rauf Khan, Zafar Ullah, Zahid Karim, Mamoona Karim

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Optimization of Plug-in HEV Power and Control Strategy Parameter based on the Particle Swam Optimization Algorithm by Yin Andong, Zhang Yu, Zhang Bingzhan, Zhao Han, Wang Ruofei

“…A newly developed plug-in hybrid electric vehicle is taken as research object and the vehicle simulation model is built by using CRUISE on the basis of completing the match of transmission parameters and control strategy design.An optimization model of plug-in HEV parameters is set up,applying optimization software Isight to integrate with CRUISE model.The constraints of the model are the designed power performance and the objective function is the fuel consumption and emission performance.The particle swarm optimization is applied to optimize the transmission system parameters and the control strategy parameter simultaneously.Compared the simulation results demonstrate that fuel consumption per hundred kilometer of PHEV is reduced by 12.5%and equivalent fuel consumption is reduced by 10.7% under UDDS driving cycle after optimization.…”
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Research on Resource Pool for Carrierˊs Service Platform Based on Cloud Computing by Yongjin Liu, Ke Huang

“…Then from a real case, a construction program for cloud computing resource pool including hardware devices configuration and virtualization software selection was provided.…”
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Wetted Bulb Dimensions From a Trickle Source by Elsa S. Sepúlveda, Fedro S. Zazueta

“…It is generally recommended that a sufficiently large fraction of the root zone be wetted by irrigation to ensure adequate water and nutrient supply to the plant. This software allows the calculation of the wetted bulb diameter from a point source in a sandy soil. …”
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