摘要
本文研究了带挤压油膜阻尼器(SFD)的转子系统在考虑弯扭耦合的情况下的加速响应。采用π油膜理论表示SFD中的油膜力,推导了在加速情况下转子系统的运动微分方程,并采用数值方法对运动方程进行了求解。由计算结果可以看出,角加速度的大小会对系统的瞬态响应产生影响,而平稳运行后突然加速会造成SFD的油膜力产生振荡。
This paper investigated the response of rotor system supported on Squeezed Film Damper (SFD) under acceleration. The nonlinear film force in SFD is represented on the basis of π film theory. Consider-ing the acceleration of rotor, the motion equations have been derived. A numerical method is applied to solve the ODEs. From simulation results, it can be seen that rotating acceleration will influence the transit response of the rotor. Dramatic changing in acceleration will cause swing of film force in SFD of rotor after a period of stable running.
出处
《燃气涡轮试验与研究》
2004年第4期9-11,共3页
Gas Turbine Experiment and Research
基金
航空基金资助项目(03C53016)
