| 在金属塑性成形中表面微凸对接触力及摩擦系数的影响 |
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| 引用本文： | 徐飞英,闫小青,扶名福.在金属塑性成形中表面微凸对接触力及摩擦系数的影响[J].南昌大学学报(工科版),2008,30(3):1. |
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| 作者姓名： | 徐飞英 闫小青 扶名福 |
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| 作者单位： | 南昌大学建筑工程学院； |
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| 基金项目： | 教育部高校骨干教师资助计划 |
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| 摘 要： | 应用大型有限元软件ADINA,采用库仑摩擦模型和非局部摩擦模型,对不考虑表面微凸的模型和单个微凸体模型在塑性成形中的摩擦力、摩擦系数等进行研究。研究结果表明:不考虑表面微凸的情况,局部库仑摩擦模型与非局部摩擦模型的结果差别不大。考虑表面微凸时,摩擦系数随着变形量的
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| 关 键 词： | 微凸体 摩擦系数 摩擦力 非局部摩擦 |
Effect of Asperities of Surface on Contact Forces and Friction Coefficient in Metal Plastic Forming |
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| XU Fei-ying,YAN Xiao-qing,FU Ming-fu.Effect of Asperities of Surface on Contact Forces and Friction Coefficient in Metal Plastic Forming[J].Journal of Nanchang University(Engineering & Technology Edition),2008,30(3):1. |
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| Authors: | XU Fei-ying YAN Xiao-qing FU Ming-fu |
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| Abstract: | The friction,friction coefficient etc of prescind from external asperity model and the single asperity model in plasticity forming were respectively researched by using finite element analysis software ADINA and Coulomb friction model and nonlocal friction model.The results indicate that the result of local Coulomb friction model and nonlocal friction model is not too distinctive.When considering external asperity,friction coefficient decreases with increase of follow deformat and normal force.The coefficient of nonlocal friction is bigger than local Coulomb friction.Friction which is calculated by nonlocal friction model is bigger than that calculated by local Coulomb friction model,but the total variational trend is resemble. |
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| Keywords: | asperity nonlocal friction friction coefficient of friction |
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