弹用发动机转子支承系统参数优化

Parameter Optimization for a Rotor System used in a Missile Engine

采用Ｒｉｃｃａｔｉ传递矩阵法及松驰迭代法，对具有挤压油膜用尼器和弹性支承的柔性转子系统的稳态不平衡响应进行了理论分析．在此基础上．运用混合罚函数法对某型号涡喷发动机转子支承系统的弹性支承刚度及挤压油膜阻尼器的诸参数进行了优化设计，从而为新型发动机的研制，提供了理论依据．

The steady state inbalance response of a rotor system supported in an elastic spring and a squeeze film damper has been theoretically analysed by using the Riccati transfer-matrix method and the relaxation iteration method.The parameters of elastic springs and squeeze film dampers used in an engine rotor have been optimized by using the SUMT method.The method used in this paper can be extended to rotor systems supported in other nonlinear bearings.