Friction generated limit cycles

descriptionPublicationkeyboard_double_arrow_right Article 01 Jul 2001 Sweden Publisher:Institute of Electrical and Electronics Engineers (IEEE)Journal:IEEE Transactions on Control Systems Technology, volume 9, pages 629-636 (issn: 1063-6536,

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Authors: Ohlsson, Henrik; Åström, Karl Johan;

doi: 10.1109/87.930974 , 10.1109/cca.1996.558968

Friction generated limit cycles

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Abstract

This paper treats limit cycles caused by friction. The goal has been to explain phenomena that have been observed experimentally in mechatronic systems. Experiments have shown that oscillations of qualitatively different types can be obtained simply by changing controller specifications. Stiction is important in some cases but not in others. Necessary conditions for limit cycle are given for the case where stiction is important. Conditions for local stability of the limit cycles are also presented. The results give insight into phenomena observed experimentally.

Country

Sweden

Related Organizations

Lund University
Sweden

Keywords

limit cycle, relay oscillation, Friction, Control Engineering, stability

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