NDLI: Bifurcation and Chaos in Friction-Induced Vibration

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Li, Yong Feng, Z. C.
Copyright Year	2002
Abstract	Friction-induced vibration is a phenomenon that has received extensive study by the dynamics community. This is because of the important industrial relevance and the evere-volving development of new friction models. In this paper, we report the result of bifurcation study of a single-degree-of-freedom mechanical oscillator sliding over a surface. The friction model we use is that developed by Canudas de Wit et al, a model that is receiving increasing acceptance from the mechanics community. Using this model, we find a stable limit cycle at intermediate sliding speed for a single-degree-of-freedom mechanical oscillator. Moreover, the mechanical oscillator can exhibit chaotic motions. For certain parameters, numerical simulation suggests the existence of a Silnikov homoclinic orbit. This is not expected in a single-degree-of-freedom system. The occurrence of chaos becomes possible because the friction model contains one internal variable. This demonstrates a unique characteristic of the friction model. Unlike most friction models, the present model is capable of simultaneously modeling self-excitation and predicting stick-slip at very low sliding speed as well.
Sponsorship	Design Engineering Division
Starting Page	471
Ending Page	479
Page Count	9
File Format	PDF
ISBN	0791836282
DOI	10.1115/IMECE2002-32811
Volume Number	Design Engineering
Conference Proceedings	ASME 2002 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2002-11-17
Publisher Place	New Orleans, Louisiana, USA
Access Restriction	Subscribed
Subject Keyword	Chaos Stick-slip Vibration Friction Computer simulation Dynamics (mechanics) Bifurcation Homoclinic orbits Limit cycles Excitation Modeling
Content Type	Text
Resource Type	Article

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