| 数字滤波法模拟粗糙表面的误差分析 | |
| 陈海波 ; 陈辉 ; 胡元中 ; 王慧 ; Chen Haibo ; Chen Hui ; Hu Yuanzhong ; Wang Hui | |
| 2010-06-08 ; 2010-06-08 | |
| 关键词 | 粗糙表面 计算机模拟 随机过程 数字滤波 rough surfaces computer simulation stochastic process digital filter TH161.14 |
| 其他题名 | Error Analysis in Simulating Rough Surfaces Using Digital Filter Method |
| 中文摘要 | 计算机模拟加工表面是数值模拟研究表面形貌特征对摩擦和润滑性能影响的前提。基于低通数字滤波技术,通过比较计算机模拟表面和实测磨削表面的粗糙度、峰度、偏度、面积支承率和自相关函数,研究了低通数字滤波法模拟加工表面高度分布特征和自相关函数的精确度,并对加工表面模拟过程中产生的高度分布误差进行了具体分析和讨论。分析结果表明:低通数字滤波法在模拟非高斯粗糙表面时模拟精确度主要受目标表面高度分布特征的影响较大,而且该方法生成非高斯表面存在一定的局限性无法生成特定高度分布的粗糙表面。; Simulating machining surface is necessary for studying the tribological and lubricative behaviour between two surfaces by numerical solution.By comparing the RMS,kurtosis,skewness,area bearing ratio and autocorrelation function of the simulation surface with those of the ground surface,the accuracy of the low-pass digital filter method to simulate the machining surface with a specified autocorrelation function and height distribution was studied.The error of height distribution in the simulating was analyzed.The results show that the accuracy of simulation by this method is mainly affected by height distribution of rough surface and some rough surfaces with special height distributions can not be simulated because of the limitation of the simulation method.; 国际合作项目(0410A58) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/49798]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 陈海波,陈辉,胡元中,等. 数字滤波法模拟粗糙表面的误差分析[J],2010, 2010. |
| APA | 陈海波.,陈辉.,胡元中.,王慧.,Chen Haibo.,...&Wang Hui.(2010).数字滤波法模拟粗糙表面的误差分析.. |
| MLA | 陈海波,et al."数字滤波法模拟粗糙表面的误差分析".(2010). |
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