对挤压油膜阻尼器轴承和旋转机械转子—挤压油膜阻尼器轴承系统动力特性研究的回顾与展望

RETROSPECT AND PROSPECT TO THE RESEARCH ON SQUEEZE FILM DAMPER BEARING (SFDB) AND ON DYNAMIC CHARACTERISTICS OF ROTATING MACHINERY ROTOR-SFDB SYSTEM

简要介绍挤压油膜阻尼器轴承及其基本分类 ,介绍各种挤压油膜阻尼器轴承的动力学特性研究和建立阻尼器流体动力模型与挤压油膜力的进展情况 ,总结了支承在挤压油膜阻尼器轴承上的旋转机械转子系统的动态响应特性和稳定性的研究结果及对这类强非线性的转子—阻尼器支承系统的非线性响应特性研究的进展情况 。

Squeeze film damper bearing (SFDB) is now widely used in aeroengine and other rotating machineries due to its advantages of obvious isolating effect, simple structure, small space and easy manufacturing. In this paper, different kinds of SFDB and the research results on the dynamic characteristics of these SFDB and on the models of fluid dynamic and squeeze film force were introduced. The research achievements on the dynamic response characteristics and stability of the rotating machinery rotor supported on SFDB were reviewed. Also the progressing on the nonlinear responses analysis of such strong nonlinear rotor-damper support system was introduced. The future development of and research on the SFDB was prospected.