有阻尼状态下模态机械阻抗综合法研究  

Study on Mode Mechanical Impedance Synthesis Method with Damping Effect

作　　者：孔敬之[1] 刘永明[1] 

机构地区：[1]同济大学铁道与城市轨道交通研究院,上海201804

出　　处：《噪声与振动控制》2010年第1期7-9,共3页Noise and Vibration Control

摘　　要：研究存在弹性变形的复杂机械系统的机械阻抗,提出有阻尼作用下的模态机械阻抗综合法。用模块化处理方式对其进行推导。最后,以浮筏系统模型为实例,进行系统建模和整个系统的固有频率计算和分析。In this paper, the comprehensive mechanical impedance problem of the complicated mechanical system is studied with the elastic deformation considered. The synthesis method of mode mechanieal impedance with damping effect is presented. The process of system modeling by this method is similar to that of the modular processing. Finally, a floating raft system model is presented, and the natural frequency is computed and analyzed.

关 键 词：振动与波 模态 机械阻抗 阻尼 振动 固有频率 

分 类 号：O328[理学—一般力学与力学基础]