The analysis for the reason of limit cycle generated by friction in servo system
In this paper, limit cycle which results from friction during low-velocity servo system has been discussed. First, the piecewise linearization method has been applied to change nonlinear stribeck model to linear model. Second, with analysis of equilibrium property, it is proved the existence of limit cycle and its certain region. The analysis reveals that it is because of stability of equilibrium repeatedly changing results in the limit cycle during lowvelocity state. In addition, it also points that the key point to avoid this phenomenon is to keep robust stability of the close-loop system.
control theory relay character friction torque Limit cycle robust stability
Huibin Gao Yan Song Miao Li
Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 13 Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 13
国际会议
长春
英文
88-91
2010-08-24（万方平台首次上网日期，不代表论文的发表时间）