膜片联轴器刚度对尾轴自激振动的敏感性分析  

Sensitivity Analysis of Diaphragm Coupling Stiffness to Self-excited Vibration of Tail Shaft

作　　者：张润泽 Zhang Runze(AECC Hunan Aviation Powerplant Research Institute,Zhuzhou,China)

机构地区：[1]中国航发湖南动力机械研究所,湖南株洲

出　　处：《科学技术创新》2024年第9期71-74,共4页Scientific and Technological Innovation

摘　　要：针对直升机尾传动轴系动力学设计需求,参照某型直升机尾传动轴结构形式,建立了花键-膜片联轴器-轴系动力学模型。讨论了膜片联轴器各向刚度对尾轴系统自激振动影响的敏感性。研究结果表明:轴系的自激振动响应对膜片联轴器角向刚度变化最为敏感,对扭转刚度的变化敏感性一般,而径向刚度与轴向刚度在小范围变化时对轴系自激振动的影响可以忽略。According to the dynamic design requirements of helicopter tail transmission shafting,a spline-diaphragm coupling-shafting dynamic model is established with reference to the structural form of a certain helicopter tail transmission shaft.The sensitivity of the effect of isotropic stiffness of diaphragm coupling on self-excited vibration of tail shaft system is discussed.The results show that the self-excited vibration response of shafting is most sensitive to the change of angular stiffness of diaphragm coupling and is generally sensitive to the change of torsional stiffness.the influence of radial stiffness and axial stiffness on shafting self-excited vibration can be ignored when the change of radial stiffness and axial stiffness is small.

关 键 词：直升机尾传动轴 膜片联轴器 自激振动 

分 类 号：TH133.4[机械工程—机械制造及自动化]