• CN：11-2187/TH
• ISSN：0577-6686

›› 2005, Vol. 41 ›› Issue (8): 136-139.

• 论文 •

### 五参量结构阻尼模型及其在弹性机构动力学中的应用

1. 西安理工大学机械与精密仪器工程学院
• 发布日期:2005-08-15

### FIVE PARAMETERS STRUCTURAL DAMPING MODEL AND ITS APPLICATION IN ELASTIC MECHANISM DYNAMICS

Liu Baixi;Yuan Daning;Liu Hongzhao;Rao Jianhua;Zhang Zhongming

1. Department of Mechanical Engineering, Xi’an University of Technology
• Published:2005-08-15

Abstract: Using viscoelastic theory, a structural damping model with five control parameters is introduced as the constitutive equation for damping alloy. Based on the experimental data evaluation, the five parameters are fitted by using an optimization algorithm. Dynamic equations of beam element of damping alloy are derived with above five parameters representing the dissipation and stiffness characteristics. For the convenience of computation, the established dynamic equations containing convolution integration are changed into four-order differential equations. Further, the system dynamic equation of the elastic linkage mechanism containing damping alloy parts is assembled according to the kineto-elastodynamics theory. Finally, the state space method is employed to solve the established high order differential equations with time-varying coefficients. An example is given to show that the proposed model is accurate and effective.