【摘要】 鉴于工程上计算软件采用的Rayleigh阻尼的一些不足,构造了考虑高阶振型在内的阻尼矩阵,使结构各振型的阻尼比可以为指定值,以及对ABAQUS二次开发,编制子程序,将构造的阻尼矩阵以阻尼力的形式施加在结构上,通过对某工程实例施加阻尼力,对比了考虑不同阶振型阻尼比情况下的结构层间位移角和基底剪力结果,验证了施加阻尼力的正确性。更多还原

【Abstract】 In view of some disadvantages of using Rayleigh damping in engineering calculation software,constructed the damping matrix considering the higher-order modes,made the structure each mode damping ratio to specified value,and made secondary development to ABAQUS,compiled the subprogram,made the structural damping matrix as damping form to the structure,by applying the damping force to a certain engineering example,compared the structure interlayer displacement angle and base shear results considering different orders mode damping ratio situation,verified the correctness of damping force applied.更多还原