Dynamic Contact Analysis of Power Spilt Device in Energy Coupling and Decoupling

2013 ◽  
Vol 448-453 ◽  
pp. 3154-3157
Author(s):  
Long Kong ◽  
Zhong Da Wang ◽  
Xiao Yu Wang ◽  
Ji Xin Wang
Keyword(s):  
Working Conditions ◽  
Hybrid Electric Vehicle ◽  
Energy Coupling ◽  
Dynamic Contact ◽  
Simulation Method ◽  
Contact Analysis ◽  
Gear Train ◽  
Dynamic Performances ◽  
Power Component ◽  
Abaqus Software

Power Spilt Device (PSD) is the key power component of Hybrid Electric Vehicle (HEV), and it affects dynamic performances and fuel consumption of HEV. The dynamic contact analysis of PSD gear train is difficult, as it is time-consuming and complex to set calculation parameters. This paper presents a method for dynamic contact analysis of PSD gear train using ABAQUS software. Three working conditions are chosen to simulate the dynamic contact pressure. The work in this paper provides an effective simulation method for obtaining dynamic contact characteristics of PSD gear meshing.

Thermal-Mechanical Coupling Analysis of Power Spilt Device Gear Train

2013 ◽  
Vol 448-453 ◽  
pp. 3115-3118 ◽  
Author(s):  
Wang Hao Shen ◽  
Long Kong ◽  
Zhong Da Wang ◽  
Chao Xu ◽  
Ji Xin Wang
Keyword(s):  
Temperature Field ◽  
Stress Field ◽  
Surface Temperature ◽  
Contact Stress ◽  
Hybrid Electric Vehicle ◽  
Gear Train ◽  
Tooth Surface ◽  
Coupling Analysis ◽  
Mechanical Coupling ◽  
Power Component

Power Spilt Device (PSD) is the key power component of Hybrid Electric Vehicle (HEV). It is very important to simulate and analyze the temperature field and stress field of PSD gear train. The thermal-mechanical coupling analysis is difficult, as it involves the interaction between temperature field and stress field. This paper presents the process of the thermal-mechanical coupling simulation in ABAQUS, and tooth surface temperature and contact stress are obtained and analyzed.

Study on Dent Resistance with Whole Process Optimization Method for Body's Cover Based on the Variable Conditions

2013 ◽  
Vol 700 ◽  
pp. 164-169
Author(s):  
Kai Song ◽  
Chao Wang ◽  
Tao Chen ◽  
Ze Zhou
Keyword(s):  
Process Optimization ◽  
Optimization Problems ◽  
Simulation Method ◽  
Optimization Method ◽  
Fast Simulation ◽  
Whole Process ◽  
Element Simulation ◽  
Contact Nonlinearity ◽  
Abaqus Software ◽  
Process Method

This paper aims at cover body dent resistance optimization problems, developed a whole process method using the finite element simulation method and the corresponding engineering experience to solve the dent resistance problem. Use of Tcl/Tk language to develop the script for fast simulation model consider material nonlinearity and contact nonlinearity, Use Abaqus software to calculate the results, and then customized to optimize use of simplified script parameters on changes in the working conditions of the structure will be optimized. The results show that this set of process optimization method to solve the variable conditions dent resistance is quickly, efficiently and accurately.

Numerical Simulation Method Research on Pellet-Cladding Mechanical Interaction Based on ABAQUS Software

2020 ◽  
Author(s):  
Changbing Tang ◽  
Yongjun Jiao ◽  
Yuanming Li ◽  
Yi Zhou ◽  
Kun Zhang
Keyword(s):  
Performance Analysis ◽  
Contact Pressure ◽  
Nuclear Fuel ◽  
Local Stress ◽  
Simulation Method ◽  
Operating Conditions ◽  
Effective Control ◽  
Mechanical Interaction ◽  
Fuel Performance ◽  
Abaqus Software

Abstract The cladding acts as the first barrier to prevent the release of radioactive fission products, requiring its structural integrity to be maintained throughout the whole operation period of nuclear reactor. Therefore, cladding failure due to PCI (pellet claading mechanical interaction) should be avoided as much as possible in fuel design and operating conditions. At the same time, it is necessary to achieve effective control of the cladding stress by limiting the power growth rate etc. However, in the manufacturing process of fuel rod, the MPS (missing pellet surface) defect is inevitably generated. This defect may lead to a substantial increase in the local stress of the cladding, which in turn exceeds its corresponding stress limit, resulting in cladding failure. Accurate simulation of fuel performance caused by such defects will help prevent such failures. The traditional fuel performance analysis codes are based on a 1.5D analysis framework and cannot handle the local asymmetry problem of fuel such as the MPS defect. In order to accurately simulate the PCI phenomenon caused by the MPS defect, this research establishes a fuel performance analysis code based on the ABAQUS software and this code is suit for the 2D and 3D conditions. Based on the established analysis code, the irradiation-thermal-mechanical behavior of nuclear fuel under typical II transient conditions was studied, and the sensitivity analysis of the influence of different MPS sizes on the local stress of cladding was carried out. The simulation results show that :(1)the mises stress, contact pressure and equivalent creep strain of the cladding may be unevenly distributed due to the MPS defect.(2)the MPS defect will result in a more severe contact pressure on cladding during power transient period, which may lead to failure of cladding and should be prevented. The simulation method established in this research could be very help for the performance analysis for the nuclear fuel rods.

Contact Analysis of Gear Trains Using Linear Complementarity Based Compliant Contact Model

2019 ◽  
Author(s):  
Mangesh Pathak ◽  
Sourav Rakshit
Keyword(s):  
Finite Element ◽  
Computation Time ◽  
Planetary Gear ◽  
Element Model ◽  
Linear Complementarity ◽  
Contact Analysis ◽  
Contact Forces ◽  
Gear Train ◽  
Spur Gears ◽  
Gear Contact

Abstract The current computation models for gear contact analysis and wear prediction are mostly based on finite element analysis which consumes much computation time and effort. In this work, we adopt an alternative approach for gear contact analysis using linear complementarity. This approach was successfully applied to a pair of rigid spur gears and a planetary gear train (gears are considered as rigid bodies) in our previous work. In this paper, we extend our linear complementarity model to consider local deformation caused due to contact between gear teeth in mesh. Thus obtained linear complementarity model is applied to a pair of spur gears and a planetary gear train. A linear complementarity solver computes the contact forces between meshing teeth of gears. From the contact forces, sliding wear in gear teeth is predicted. Archard’s wear model is used for the wear prediction. Using this model, the contact forces are uniquely determined for the examples considered. The results of linear complementarity and finite element model for a pair of spur gears are compared. The linear complementarity model consumes much less computation time than the finite element model.

Study on a Kind of Active Balancer Using Planetary Gear Train

2014 ◽  
Vol 701-702 ◽  
pp. 761-768
Author(s):  
Ying Zhang ◽  
Chong Peng ◽  
Yu Dong Wang
Keyword(s):  
Working Conditions ◽  
Structural Parameters ◽  
Dynamic Performance ◽  
Design Procedure ◽  
Planetary Gear ◽  
Gear Train ◽  
Original Structure ◽  
Dynamic Balancing ◽  
Planetary Gear Train ◽  
Structure And Motion

A kind of active balancer using planetary gear train was developed as a solution for dynamic balancing, aiming to balance the mechanisms actively and bring little changes to their original structure and motion. It consists of a two-DOF planetary gear train and a controllable motor. One of the two inputs doubles as the output, connected to the machine to be balanced. The other input is driven by the control motor. The conceptual design of the proposed balancer was discussed. Taking one scheme as example, design procedure of the balancer was introduced. Numerical examples were given to demonstrate the effectiveness of the proposed balancer. The results showed that much more flexibility on the dynamic performance under different working conditions were achieved by selecting suitable input speed trajectories and structural parameters of the planetary gear train of the active balancer.

Tooth Contact Analysis of Planetary Gear Trains with Equally Spaced Planets

2010 ◽  
Vol 43 ◽  
pp. 279-282
Author(s):  
Kai Xu ◽  
Xiao Zhong Deng ◽  
Jian Jun Yang ◽  
Guan Qiang Dong
Keyword(s):  
Planetary Gear ◽  
Transmission Error ◽  
Spur Gear ◽  
Contact Analysis ◽  
Gear Train ◽  
Tooth Contact Analysis ◽  
Planetary Gear Train ◽  
Tooth Contact ◽  
Gear Trains ◽  
Equal Space

Based on Tooth Contact Analysis (TCA), a feasible approach for Transmission Error (TE) of planetary gear train is proposed in this paper. With a view to getting the total TE curve of the planetary gear train, a specific analysis of the TE from the planetary gear train with only one planet should be proceed firstly, the second step is to calculate each phase difference of planets in the gear train. The applicable conditions for the simplified calculation are spur gear or involute gear pairs in the gear train. Due to equal space between them, planets have the same phase angle.

Dynamic-Performance Research of Placement Machine

2010 ◽  
Vol 44-47 ◽  
pp. 641-645 ◽  
Author(s):  
Yong Shan Xiao ◽  
Fu Min Song ◽  
Qiang Fang
Keyword(s):  
Working Conditions ◽  
Dynamic Performance ◽  
Simulation Method ◽  
Structure Form ◽  
Dynamic Accuracy ◽  
Controlling System ◽  
Placement Machine ◽  
Stiffness And Damping ◽  
The Impact ◽  
Performance Research

The placement machine was simulated by multidisciplinary co-simulation method in various working conditions, and its dynamic accuracy was studied by simulation. According to the structure form of the placement machine, the virtual prototype for co-simulation was built. The impact of all sorts of parameters on the system dynamic accuracy was simulated including the stiffness and damping of the slider and the shaft coupling, the friction coefficient and the mass distribution etc. The result shows this method is able to predict the dynamic performance and the control margin of the whole machine, instruct the design optimization and the selection, and provide the good design thought and direction for the matching design of the machinery and controlling system.

Numerical Simulation of Cutting Process by Cutter in Shield Machine

2012 ◽  
Vol 588-589 ◽  
pp. 1259-1263
Author(s):  
Yu Zhang ◽  
Rui Sun
Keyword(s):  
Numerical Simulation ◽  
Cutting Force ◽  
Damage Model ◽  
Dynamic Contact ◽  
Simulation Method ◽  
Soil Material ◽  
Construction Machinery ◽  
Engineering Parameters ◽  
Shield Machine ◽  
Properties Of Soil

Shield cutterhead is the key part of tunneling construction machinery. Because the cutterhead can cut the front soil by the cutter on the cutterhead, it’s of great significance for the design of the cutterhead to research the dynamic process of cutter cutting. With using extended Drucker-Prager constitutive model and damage model which has element removing function, the properties of soil material can be simulated more practically. The results also provide a simulation method of soil material on researching cutterhead tunneling process. Combined with finite element dynamic contact characteristics, it is obtained the regulation of cutting force changing with time and cutting force value in the process of cutter cutting. The results also offer a engineering parameters for researching the load state of cutterhead tunneling.

Study of Numerical Simulation in Failure Modes of Waste Dump Slope

2015 ◽  
Vol 1092-1093 ◽  
pp. 748-752 ◽  
Author(s):  
Shao Jie Feng ◽  
Yan Fei Dong ◽  
Shi Guo Sun ◽  
Sheng Lei Kan
Keyword(s):  
Numerical Simulation ◽  
Slope Stability ◽  
Working Conditions ◽  
Failure Modes ◽  
Simulation Method ◽  
Single Step ◽  
Waste Dump ◽  
Numerical Simulation Method ◽  
Dump Slope ◽  
Better Than

Based on the numerical simulation method and a sample slope engineer of waste dump, the failure modes of waste dump slope is analyzed. By means of analyzing working conditions such as different slope angles, single step, many steps, the failure modes of waste dump slope under different working conditions is obtained. The results show that the slope stability of multiple steps waste dump is better than the slope stability of single step waste dump, and the deformation of the slope is small.

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