【摘要】 本文介绍一种新型开关控制型半主动控制系统—主动变刚度阻尼(AVS·D)系统,研究了控制装置的参数优化,并提出一种预测最优控制算法以用于实时确定AVS·D系统的开关切换状态。为了检验AVS·D系统的减震控制效果,在某单层钢框架模型上进行了AVS·D系统的模拟地震振动台试验。研究结果表明,AVS·D系统性能优异,经济可靠,其减震控制效果远优于两种对应的passive-on与passive-off控制,可望有较好的工程应用前景。更多还原

【Abstract】 This paper presents a new semi-active control system,namely,active variable stiffness·damping (AVS·D) system.Parameters of the AVS·D device are optimized to maximally amplify deformation of dampers.A predictive optimal control algorithm is proposed and therefore determine the switch states of the AVS·D device.In order to investigate the control performance of the AVS·D system,a shaking table test of the AVS·D device installed on a one-story steel frame is conducted.Results show that the AVS·D control system is very effective in reducing responses of the controlled structure,outperforming both concomitant passive-on and passive-off control systems. The AVS·D system is an economical,reliable and effective control system with a good prospect of engineering application in the near future.更多还原