| 带支撑分数导数粘滞阻尼器减震结构随机响应 |
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| 引用本文： | 李创第,刘伟,葛新广,夏立志.带支撑分数导数粘滞阻尼器减震结构随机响应[J].广西大学学报(自然科学版),2011,36(1):26-36. |
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| 作者姓名： | 李创第 刘伟 葛新广 夏立志 |
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| 作者单位： | 1. 广西工学院土木建筑工程系,广西柳州,545006
2. 广西大学土木建筑工程学院,广西南宁,530004 |
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| 基金项目： | 广西高校百名中青年学科带头人计划项目(RC20060814017); 广西自然科学基金资助项目(0481001); 广西科学基金资助项目(0575021); 广西教育厅科研项目(0508052) |
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| 摘 要： | 对带支撑分数粘滞阻尼器单自由度耗能结构的随机地震响应与等效阻尼进行了系统研究.首先,建市结构运动方程;然后应用随机平均法,将结构响应幅值近似为扩散过程,获得了结构位移与速度联合概率密度函数以及位移、速度响应方差的解析解;最后,基于随机平均分析完全相同的等效准则,建立了可直接应用反应谱法的上述阻尼器的等效阻尼计算公式,给...
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| 关 键 词： | 粘滞阻尼器 分数导数模型 支撑 随机平均法 随机响应 等效阻尼 |
Random response of the dissipation structures with the supporting brace and the in-line viscous dampers based on the fractional derivative model |
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| LI Chuang-di,LIU Wei,GE Xin-guang,XIA Li-zhi.Random response of the dissipation structures with the supporting brace and the in-line viscous dampers based on the fractional derivative model[J].Journal of Guangxi University(Natural Science Edition),2011,36(1):26-36. |
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| Authors: | LI Chuang-di LIU Wei GE Xin-guang XIA Li-zhi |
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| Institution: | LI Chuang-di1,LIU Wei2,GE Xin-guang1,XIA Li-zhi2(1.Department of Civil Engineering and Architecture,Guangxi University of Technology,Liuzhou 545006,China,2.College of Civil Engineering and Architecture,Guangxi University,Nanning 530004,China) |
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| Abstract: | The random earthquake response and equivalent damping of SDOF dissipation structure with the supporting brace and the in-line viscous dampers based on the fractional derivative model were studied systematically.The dynamic equations of the structure were established.Then,employing the stochastic averaging method,the structural amplitude diffusion was obtained,and the exact solutions of joint probability density function and mean-square values of structural displacement and velocity were given.Finally,using ... |
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| Keywords: | viscous dampers fractional derivative brace stochastic averaging method random response equivalent damping |
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