基于遗传算法与能量方程的粘弹性隔震装置参数优化分析

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (17) : 116-119.

论文

基于遗传算法与能量方程的粘弹性隔震装置参数优化分析

郭一峰徐赵东涂青

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Optimum Analysis for the Parameters of Viscoelastic Isolate device Based on Genetic Algorithm and Energy Equation

Guo Yi-feng, Xu Zhao-dong, Tu Qing

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摘要

本文基于能量方程研究了粘弹性隔震装置的参数优化问题，从能量角度提出了基于遗传算法的目标优化函数，建立了粘弹性隔震装置参数优化模型。以柱面网壳隔减震为例，基于遗传算法和能量方程，采用ANSYS和MATLAB并行对其进行参数优化分析，并分析了该方法对地震波的敏感性。结果表明：基于能量方程的优化目标函数，通过遗传算法优化分析得到的粘弹性隔震参数能够使得结构的位移和应力得到有效的控制；同时也表明该优化方法受不同地震波的影响较小。

Abstract

Parametric optimization of viscoelastic dampers in earthquake isolation and mitigation of structures is investigated in this paper. Based on the energy equation, an objective function for optimization is set up, and a parametric optimization model for viscoelastic dampers is developed. Then, the genetic algorithms method programmed by MATLAB is used to complete the parametric optimization of a cylindrical reticulated shell modeled by ANSYS, and the sensitivity to the earthquake waves of this method is also studied. The parameters of the viscoelastic dampers are obtained by genetic algorithm based on energy equation. The numerical results show that the displacement and stress of the structure are controlled effectively. Additionally, the different earthquake waves have little influence on the results obtained by the method.

导出引用

郭一峰徐赵东涂青. 基于遗传算法与能量方程的粘弹性隔震装置参数优化分析[J]. 振动与冲击, 2012, 31(17): 116-119

Guo Yi-feng;Xu Zhao-dong;Tu Qing. Optimum Analysis for the Parameters of Viscoelastic Isolate device Based on Genetic Algorithm and Energy Equation[J]. Journal of Vibration and Shock, 2012, 31(17): 116-119