摘要
双转子结构在航空发动机中有很广泛的应用,针对带定心弹性支承挤压油膜阻尼器的双转子系统,建立了考虑轴间轴承耦合力的双转子系统动力学模型,采用 7-8阶连续Runge-Kutta法进行求解,得到了双转子系统的非线性振动特性和轴间轴承所承受的力,从而为结构的振动分析与诊断打下了基础。
Squeeze film damper (SFD) - dual rotor system, widely used in aero engines, is investigated in this paper. A dynamical model about SFD - dual rotor system with spring support is set up, in which not only the forces between the high - pressure rotor and low - pressure rotor but also the nonlinear oil - film forces are considered. The model is solved by 7 - 8 order continuous Runge - Kutta method. The characteristics of nonlinear vibration and the forces between the rotors are got. These are useful in vibration monitor and fault diagnosis for aero engines.
出处
《空军工程大学学报（自然科学版）》
CSCD
北大核心
2005年第1期14-16,共3页
Journal of Air Force Engineering University(Natural Science Edition)
