主动约束层阻尼板结构动力学建模研究  

Study on Modeling of Plate with Active Constrained Layer Damping Treatments

作　　者：刘天雄[1] 华宏星[2] 张志谊[2] 石银明[2] 陈兆能[2] 

机构地区：[1]北京空间飞行器总体设计部,北京100086 [2]上海交通大学机械工程学院,上海200030

出　　处：《高技术通讯》2003年第3期42-46,共5页Chinese High Technology Letters

基　　金：国防科技重点实验室基金 (JS 5 2 4 3)资助项目。

摘　　要：将有限元法和GHM法相结合 ,给出了建立主动约束层阻尼 (ACLD)板结构动力学模型的新方法。建模时 ,考虑到粘弹材料 (VEM )的纵向位移影响 ,采用GHM方法描述VEM的本构关系 ,解决了VEM的力学特性随温度和频率变化的难点 ,避免因VEM的复杂本构关系而产生的微分积分方程。算例表明本文给出的建模方法是准确的 ,A CLD结构能够有效控制结构振动。A new modeling method for active constrained layer damping (ACLD) plate based on the conjunction of finite element method(FEM) and GHM(Golla-Hughes-Mctavish) method is presented in this paper. It is difficult to carry out dynamical analysis and control research by conventional methods because the constitutive relations of viscoelastic materials (VEM) vary with the frequency and temperature. In order to solve this problem, the GHM method is utilized to describe the constitutive of VEM. The results of simulation indicate that the new modeling method is accurate and ACLD treatments can attenuate the structure vibration effectively.

关 键 词：结构动力学 建模 主动约束层阻尼板结构 振动控制 有限元法 粘弹材料 模型 ACLD 

分 类 号：O328[理学—一般力学与力学基础]