The structural model of this system and the new Coulomb friction representation are introduced into the nonlinear dynamic analysis. Special attention is also paid to the study of parameters which affect the decreasing rate.

• 在进行非线性动力分析过程中，首次建立了系统的结构模型，引入了一种新的库仑摩擦力表达式并对影响体系减振率的有关参数进行了研究。