Vibration Reduction Characteristics of Metal Damper in
Journal Bearing-Rotor System

doi:10.16183/j.cnki.jsjtu.2018.05.017

Abstract

Abstract: In order to investigate the influence of metal damper (MD) on the damping performance of journal bearing-rotor system, three kinds of journal bearings (general journal bearings, journal bearings supported on circular MD, journal bearings supported on radial MD) were designed and manufactured. Experiments were carried out to investigate vibration characteristics and stability of the bearing-rotor system with the above bearings. Half speed vortex and vibration reduction characteristics of the system were analyzed. Results show that there is a significant decrease in acceleration amplitude of the bearings embedded with MD compared to general journal bearings. The journal bearings supported on radial MD have better vibration damping effect than journal bearings supported on circular MD, for there is no obvious half speed vortex and asynchronous vibration. Vibration energy dissipated by MD contributes to improving dynamics stability of the bearing-rotor system.

Key words: journal bearings, rotor, metal damper (MD), vibration damping, half speed vortex

CLC Number:

TB 535

LI Zhaolun,WANG Xiaojing,SHEN Yifan,CHEN Chao,DONG Jian. Vibration Reduction Characteristics of Metal Damper in Journal Bearing-Rotor System[J]. Journal of Shanghai Jiaotong University, 2018, 52(5): 612-619.

References

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Vibration Reduction Characteristics of Metal Damper in Journal Bearing-Rotor System

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