直梁在纵横弯曲耦合振动的动力响应  

The straight roof beam is vertically and horizontally the motive force of crooked coupling vibration is responded

作　　者：王海容[1] 

机构地区：[1]邵阳学院,湖南邵阳422004

出　　处：《邵阳学院学报（自然科学版）》2005年第4期17-18,共2页Journal of Shaoyang University：Natural Science Edition

摘　　要：考察纵横弯曲下直梁的强迫振动的运动方程,利用动响应分析中主振型的正交性,将微分方程解耦合,把多自由度系统转化为单自由度系统的模态响应问题,再将各个模态的响应叠加得到原系统的动力响应,即运动微分方程的解.Investigating the movement equation of forcing vibration of the straight roof beam under crookedly vertically and horizontally , mainly utilize orthogonality of the shaking type in motive force respondout analysis, make coupling of solution differential equation , tuna from system of many degree of freedoms into the mode of the system of degree of freedom.

关 键 词：纵横弯曲 耦合振动 动力响应 模态分析 主振型 

分 类 号：O342[理学—固体力学]