【摘要】 文章基于Hamilton变分原理,采用Timoshenko梁理论,给出了考虑科氏力影响的中心刚体-柔性梁系统的动力学方程,并应用弹性波与振动模态理论,确定了受科氏力影响的Timoshenko梁的振动模态。同时,结合变结构控制器设计原理,对比分析了考虑科氏力与不考虑科氏力时对旋转Timoshenko梁振动的影响。更多还原

【Abstract】 By the Hamilton principle and Timoshenko beam theory,the dynamic equation of the flexible hub-beam system with the consideration of the Coriolis force is derived.Using the elastic wave propagation theory,the mode shapes of Timoshenko beam with the considera-tion of the Coriolis force are presented.At the same time,combined with variable structure control principle,the article compares with the results of with and without Coriolis force’s influence to the vibration of the rotating Timoshenko beam.更多还原