| 滤波截止频率对粗糙点接触机理影响研究 |
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| 引用本文： | 孟凡明,王文中,胡元中,王惠.滤波截止频率对粗糙点接触机理影响研究[J].摩擦学学报,2009,29(4):351-356. |
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| 作者姓名： | 孟凡明 王文中 胡元中 王惠 |
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| 作者单位： | 重庆大学机械传动国家重点实验室;北京理工大学机械和车辆学院;清华大学摩擦学国家重点实验室; |
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| 基金项目： | 教育部博士点新教师项目(200806111020);;国家自然科学基金重点资助项目(50735008) |
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| 摘 要： | 使用基于快速傅里叶变换和共轭梯度法的接触程序,分析了滤波截止频率对粗糙点接触机理的影响.计算结果表明:粗糙表面形貌数据再处理时使用的滤波器滤波截止频率,对力-接近量关系有着明显的影响;滤波截止频率越小,接触面积越大,接触压力越小;滤波截止频率的改变会导致Von M ises应力的显著改变,这种改变在接触面上特别明显.因此,在实际研究粗糙表面的接触机理时,选择合适的滤波截止频率是非常必要的.
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| 关 键 词： | 滤波截止频率 接触面积 力-接近量 VonMise应力 接触压力 快速傅里叶变换 共轭梯度法 |
Study on Effect of Filter Cut-off Frequency on Rough Point Contact Mechanism |
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| MENG Fan-ming,WANG Wen-zhong,HU Yuan-zhong and WANG Hui.Study on Effect of Filter Cut-off Frequency on Rough Point Contact Mechanism[J].Tribology,2009,29(4):351-356. |
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| Authors: | MENG Fan-ming WANG Wen-zhong HU Yuan-zhong and WANG Hui |
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| Institution: | 1.The State Key Laboratory of Mechanical Transmission;Chongqing University;Chongqing 400044;China;2.School of Mechanical and Vehicular Engineering;Beijing Institute of Technology;Beijing;100081;3.State Key Laboratory of Tribology;Tsinghua University;Beijing 100084;China |
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| Abstract: | Influences of filter cut-off frequency,by which fine rough surface characteristics can be further achieved after obtaining rough surface roughness,on contact mechanism for rough point contact were investigated with authors contact program based on FFT technology and conjugate gradient method.Numerical results show that the cut-off frequency used for has a significant effect on curve of applied force against approach between the two contacting bodies.The smaller cut-off frequency,the larger contact area and ... |
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| Keywords: | filter cut-off frequency contact area force-approach contact pressure Von mises stress FFT conjugate gradient method |
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