摘要
本文考虑了汽轮机长叶片的截面翘曲问题,应用开口薄壁梁理论对长叶片的运动学,静力学和动力学特性进行了分析,并应用哈密顿原理推导了变截面,有预扭长叶片的纵向拉伸。
The warping problems of long turbine blade are concerned 1 he kinematie,static and dynamic characteristics of long trbine blade have been analyzed by application of the theory of open thin walled bars.The dynamic equations and boundary conditions of the coupled extensional-flexural-flexural-tor??ional vibrations of the nonuniform and twisted long turbine blade have been derived by means of Hamilton principle.
关键词
叶片
翘曲
耦合振动
汽轮机
blade
warping
coupled vibration
open thin walled bar
