组合隔震结构振动随机最优控制

Random Optimal Vibration Control of Combined Isolation Structures

提出了一种新的结构体系———组合隔震结构体系,并推导了振动及控制方程.假定地震动输入为白噪声,运用随机最优控制原理,分析了组合隔震结构振动的控制性能以及隔震度、阻尼和场地等参数的影响.研究结果表明:通过优化控制参数,组合隔震结构振动控制体系能对结构地震响应进行有效控制.

A new pattern of structures, combined isolation structure, was presented, and its vibration and control equations were derived. Based on the hypothesis that the input for earthquakes is white noise and using the principle of random optimal control, the features of vibration control and the effects of parameters such as isolation degree, damping and ground site on them were analyzed. The research result indicates that the vibration control system of combined isolation structures can bring the seismic responses of structures under effective control by optimizing control parameters.