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。
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.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
1999年第4期422-425,共4页
Journal of Beijing University of Aeronautics and Astronautics
基金
李国鼎海峡两岸科技交流基金
关键词
油膜阻尼器
液压控制
转子动力学
主动控制
oil film
dampers
hydraulic control
rotor dynamics
active control
