微种群遗传算法优化结构振动控制

Study on optimization of structural vibration control by GA

本文将微种群遗传算法应用到结构振动控制中 ,用遗传算法优化控制器 ,以解决一类用经典线性反馈控制无法解决的半主动控制的优化问题。该方法提出将非线性控制问题线性化 ,导出了简化过程 ,然后利用遗传算法求解。它具有利用微种群遗传算法全局寻优 ,并且对目标函数的性态要求较少的特点。数值算例表明 ,本文方法是有效的。

In this paper, an approach using genetic algorithm (GA) is proposed for reducing the seismic responses of spatial structure. The controller is trained by GA to control the structural vibration which can not be resolved by classical optimum control. The virtue of GA is of the global property and having little requirement about the condition of optimum function. The numerical results have shown that the effectiveness of the proposed method is very well to reduce the responses of structure to earthquake ground motion.