粘滞阻尼器被动振动控制仿真研究  

Reserch on Simulation of Passive Vibration Control System with Fluid Viscous Damper

作　　者：曾德惠[1] 

机构地区：[1]湖北民族学院理学院,湖北恩施445000

出　　处：《湖北民族学院学报（自然科学版）》2009年第2期221-224,共4页Journal of Hubei Minzu University(Natural Science Edition)

摘　　要：在介绍粘滞阻尼器结构原理、力学模型及其被动控制设计方法的基础上,以一连续梁桥作为工程实例,将设有粘滞阻尼器耗能支撑的桥梁结构看作一控制系统,利用达朗贝尔原理建立系统的动力学方程,利用Matlab/Simulink工具箱建立仿真模型,就阻尼器不同的阻尼系数、速度指数取值及不同的安装位置进行了动态仿真分析.结果表明:合理安装了粘滞阻尼器的梁桥,其地震动力反应得到很好的控制,位移、速度、加速度都有明显地减小.Following the introduction of the structural principle, mechanical model of fluid viscous dampers and the design method of passive vibration control system with fluid viscous dampers, a continuous beam bridge with the addition of viscous energy dissipation brace is regarded as a passive control system. A system dynamics model is set with D＇Alembert＇s principle, and a simulation model is built with Simu- link simulation tools of Matlab. Simulation study and analysis are carried out for the different values of damping coefficients and velocity exponent. The results show that the structural earthquake danamic responses can be effectively controlled, and the displacement, velocity and acceleration of the bridge structure are decreased obviously with the addition of viscous energy dissipation brace.

关 键 词：粘滞阻尼器 被动控制 仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术] TU352.1[自动化与计算机技术—计算机科学与技术]