Stochastic dynamics of metal cutting: Bifurcation phenomena in turning

被引:26
|
作者
Gradisek, J
Grabec, I
Siegert, S
Friedrich, R
机构
[1] Univ Ljubljana, Fac Mech Engn, SI-10000 Ljubljana, Slovenia
[2] Univ Stuttgart, Inst Theoret Phys 3, D-70550 Stuttgart, Germany
关键词
D O I
10.1006/mssp.2001.1403
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
A method for analysis of stochastic processes is presented which makes feasible the extraction of deterministic and random components of process dynamics directly from data. The method is applied to time series from metal cutting. Three regimes of turning are treated: (a) chatter-free cutting, (b) cutting accompanied by a strong, and (c) by a weak chatter. It is shown that the transition from chatter-free cutting to chatter exhibits some properties of the Hopf bifurcation from a stable fixed point to a stable limit cycle. Other possible applications of the method are mentioned. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:831 / 840
页数:10
相关论文
共 50 条