Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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The Effects of Damping on the Limit Cycle of a 2-dof Friction Induced Self-oscillation System

마찰 기인 2자유도계 시스템의 자려진동에 대한 댐핑의 영향

  • 조용구 (한양대학교 대한원 자동차공학과) ;
  • 신기홍 (안동대학교 기계공학과) ;
  • 이유엽 (한양대학교 대학원 자동차공학과) ;
  • 오재응 (한양대학교 기계공학부)
  • Published : 2002.07.01
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Abstract

A two-degree of freedom model Is suggested to understand the basic dynamical behaviors of the interaction between two masses of the friction induced vibration system. The two masses may be considered as the pad and the dusk of the brake. The phase space analysis is performed to understand complicated dynamics of the non-linear model. Attractors in the phase space are examined for various conditions of the parameters of the model especially by emphasizing on the damping parameters. In certain conditions, the attractor becomes a limit cycle showing the stick-slip phenomena. In this Paper, not only titre existence of the limit cycle but also the sloe of the limit cycle is examined to demonstrate the non-linear dynamics that leads the unstable state. For the two different cases of the system frequency[(1) Two masses with same natural frequencies, (2) with different natural frequencies] . the propensity of limit cycle Is discussed In detail. The results show an important fact that it may make the system worse when too much damping Is present in the only one part of the masses.

Keywords

References

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