Identification of Fractal Scale Parameter of Machined Surface Profile

摘要：

In order to identify fractal scale parameters of machined surface profile accurately, the precisions of different parameter identification methods, such as power spectrum method, structure function method and variance method, are analyzed and compared. Based on discrete power spectrum function and variance method, a revised method of scale parameter identification is advanced. Results show that, in contrast with other methods, the new method could identify more accurate parameter. Those methods are adopted to identify parameters of machined surface profile. The variation of fractal parameters with surface roughness is studied. Research indicated that the preferred method to identify fractal scale parameter is the revised method; otherwise, significant error may occur in the results of parameter identification.

作者: Dingshi Li Yidu Zhang Qiong Wu Peng Wang

作者单位: State Key Laboratory of Virtual Reality Technology and Systems, School of Mechanical Engineering and Automation, BeiHang University, Beijing 100191, China

会议类型: 国际会议

会议名称: 第八届中日机械技术史及机械设计国际会议

会议地点: 河南焦作

会议语种:英文

页码: 1-6

在线出版日期: 2010-10-31（万方平台首次上网日期，不代表论文的发表时间）