非惯性坐标系下柔性梁的耦合变形特性  

Analysis on Dynamic Properties of a Planar Flexible Beam in Non-inertial Coordinate System

作　　者：闫业毫 和兴锁[1] 邓峰岩[1] 

机构地区：[1]西北工业大学力学与土木建筑学院,西安710129

出　　处：《机械科学与技术》2017年第12期1834-1837,共4页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(10672133)资助

摘　　要：在非惯性坐标系中,本文推导出具有大范围运动和非线性变形的平面柔性梁的动力学方程。通过研究和分析,本文精确模型新增加了两种耦合项:变形耦合项与基点速度耦合项。经过计算和仿真,发现这两种耦合导致了附加刚度项,动力刚度项的变化。In the non-inertial coordinate system, the dynamic equations of planar flexible beams with large overall motion and nonlinear deformation are deduced. Through the theoretic study and analysis, two kinds of coupling terms are added in the matrix of the precise model of this paper. By calculation and simulation, it is found that the effect of these two kinds of coupling causes the change of the additional stiffness and the dynamic stiffness.

关 键 词：柔性梁 大范围运动 附加刚度 模型 

分 类 号：O313.7[理学—一般力学与力学基础] O323[理学—力学]