滚动轴承零件表面的小波模拟与表征

许迪初; 汪久根; 王庆九

doi:10.13433/j.cnki.1003-8728.2016.0327

滚动轴承零件表面的小波模拟与表征

doi: 10.13433/j.cnki.1003-8728.2016.0327

1.
浙江大学机械工程学院, 杭州 310027

基金项目:

国家自然科学基金项目(51375436)与国家高技术研究发展计划项目(863计划,2015AA043002)资助

详细信息

作者简介:
许迪初(1990-),博士研究生,研究方向为摩擦学设计,xudichu@163.com

通讯作者:
汪久根,教授,博士生导师,me_jg@zju.edu.cn

计量
- 文章访问数: 215
- HTML全文浏览量: 34
- PDF下载量: 6
- 被引次数: 0
出版历程
- 收稿日期: 2014-05-16
- 刊出日期: 2016-03-05

Simulation and Characterization of Surfaces of Rolling Bearing Elements Based on Wavelets

1.
College of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China

摘要

摘要: 建立了模拟粗糙表面的小波模型,该模型可生成各向同性高斯表面、各向异性高斯表面;分析了模拟表面的统计参数和自相关函数;验证了该模型的正确性和有效性。小波模型与Johnson转换系统结合,模拟了给定偏态、峰态的非高斯表面,结果显示目标值和模拟值吻合。另外,将支承面曲线从二维推广到三维,研究表明三维支承面曲线能够更加准确反映表面真实信息;定义的粗糙峰曲线和空穴曲线为未来研究粗糙表面微润滑、微摩擦、微磨损提供基础。
- 滚动轴承零件 /
- 粗糙表面 /
- 模拟 /
- 小波 /
- 偏态 /
- 峰态 /
- 自相关函数
Abstract: A new model of rough surfaces based on wavelets is proposed, which can generate isotropic and anisotropic Gaussian rough surfaces. The accuracy and effectiveness of the surface simulation method is verified by means of calculating the statistic parameters and autocorrelation functions of simulated rough surfaces. With combination of Johnson translator system, this model can simulate non-Gaussian rough surfaces with given skewness and kurtosis. The results and their analysis show preliminarily that this method can adequately produce rough surfaces whose statistical characteristics match the prescribed values. Furthermore, the three-dimensional bearing area curve is defined, and it is better than the two-dimensional one. In addition, the micro-asperity curve and micro-cavity curve presently defined can provide the foundation for the further research on the micro-lubrication, micro-friction and micro-wear.
- autocorrelation function /
- kurtosis /
- Rolling bearing elements /
- rough surface /
- simulation /
- skewness /
- Wavelets

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