北京航空航天大学学报 ›› 1999, Vol. 25 ›› Issue (4): 422-425.

• 论文 • 上一篇    下一篇

电液主动控制挤压油膜阻尼器的理论分析

李运华1, 王占林1, 陈介力2, 林清一2   

  1. 1. 北京航空航天大学 自动控制系;
    2. 台湾成功大学 航空太空研究所
  • 收稿日期:1998-05-07 出版日期:1999-04-30 发布日期:2010-09-28
  • 作者简介:男 35岁 副教授 100083 北京
  • 基金资助:

    李国鼎海峡两岸科技交流基金资助项目

Theoretical Analysis for Squeeze Film Damper withElectrohydraulic Active Control

Li Yunhua1, Wang Zhanlin1   

  1. 1. Beijing University of Aeronautics and Astronautics,Dept. of Automatic Control;
    2. National Chengkung University, Institute of Aeronautics & Astronautics
  • Received:1998-05-07 Online:1999-04-30 Published:2010-09-28

摘要: 针对旋转机械采用传统的动压轴承构成的挤压油膜阻尼器存在的问题,提出了一种由压电晶体-电液主动控制的动静压混合轴承构成的电液挤压油膜阻尼器(HSFD).对于这种电液挤压油膜阻尼器, 经典的半油膜(π油膜)假设不再成立. 为了求解它的压力分布, 提出了一种适用于含有动静压混合作用时Reynolds方程的求解方法. 在此基础上, 对采用这种电液挤压油膜阻尼器的转子系统进行了理论分析, 从而为实现主动控制奠定了基础.

Abstract: Aiming at the problems existed in rotating machinery using traditional squeeze film damper combined with dynamic pressure bearing, a project of the hybrid oil film bearing composed of dynamic pressure and static pressure with piezoelectric crystal electrohydraulic active control supply orifice hole, i.e., electrohydraulic squeeze film damper(HSFD), is proposed. For this kind electrohydraulic squeeze film damper, the classical Sommerfeld assumption is not held. In order to solve its pressure distribution, a solution method applied to solve the Reynolds equation with hybrid action of static pressure and dynamic pressure is proposed. Based on this, the theoretical analysis for the rotor system to utilizing electrohydraulic squeeze film damper is carried out, on of the theoretical analysis of pressure distribution of this kind of electrohydraulic squeeze film damper is carried out, so the foundation to realize active control is established.

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