桂林理工大学学报2011，Vol.31Issue(1)：61-67,7.
Maxwell粘滞阻尼器耗能结构的随机地震响应
Structures Response in Random Earthquake for Maxwell Viscous Dampers
摘要
Abstract
The random earthquake response of SODF structures with Maxwell dampers in Kanai-Tajimi spectrum earthquake is studied systematically. The dynamic equations of structure are established. The structural amplitude diffusion process and the analytical formulas of the drift and diffusion coefficients are got by stochastic averaging method. The exact solutions of probability density and arbitrary-order moments of amplitude and structural energy are got by mutual relationship between diffusion process and FPK equation. The exact solutions of joint probability density and the mean-square values of displacement and velocity, and the exact solution of the expected rate of displacement threshold crossings are achieved by mutual relationships between structural amplitude, phase, displacement and velocity. Tests show that the damping coefficient cb and the generalized support stiffness kb increase, while the random response of the structure reduces. The damping effect increases.关键词
随机响应/随机平均法/Maxwell阻尼器Key words
random response/ stochastie averaging method/ Maxwell dampers分类
建筑与水利引用本文复制引用
李创第,夏立志,葛新广,刘伟..Maxwell粘滞阻尼器耗能结构的随机地震响应[J].桂林理工大学学报,2011,31(1):61-67,7.基金项目
广西高校百名中青年学科带头人计划项目(RC20060814017) （RC20060814017）
广西自然科学基金项目(桂科自0481001) （桂科自0481001）
广西科学基金项目(桂科基0575021) （桂科基0575021）
广西教育厅科研项目(0508052) （0508052）
