考虑翘曲应力及转动惯量和剪切变形影响的长叶片耦合振动

The Coupled Vibration of Long Turbine Blade with Effects of Warping,Rotary Inertia and Shear Deformation

在文献［９］的基础上考虑了转动惯量和剪切变形的影响，应用哈密顿原理推导出长叶片在考虑翘曲应力时纵向伸缩，双向横弯曲和扭转耦合振动的连续体动力学方程和边界条件．

This paper investigates the effects of rotary inertia and shear deformation on the coupled vibration of long turbine blade on the basis of reference.The paper presents the continuous dynamic equations and boundary conditions of the extension-bending-torsion coupled vibrations of blade with conceiving of warping,by using Hamilton's principle.