| 耗能减震结构的摄动分析方法 |
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| 引用本文： | 吴云芳,张亮亮. 耗能减震结构的摄动分析方法[J]. 振动与冲击, 2005, 24(3): 72-75,i007 |
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| 作者姓名： | 吴云芳 张亮亮 |
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| 作者单位： | 重庆大学土木工程学院,重庆,400045 |
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| 摘 要： | 针对用振型分解法对耗能减震结构进行反应分析中存在的计算精度差且耗时的问题,提出了求解振动方程特征值问题的改进一阶摄动的高精度模态展开法,并推导了强行解耦的振型分解的一阶摄动修正公式。最后通过算例证明,提出的摄动分析法是有效的。
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| 关 键 词： | 耗能减震结构 摄动法 振型分解法 |
Perturbation Analysis Method for Energy Dissipation System |
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| Wu Yunfang,Zhang Liangliang. Perturbation Analysis Method for Energy Dissipation System[J]. Journal of Vibration and Shock, 2005, 24(3): 72-75,i007 |
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| Authors: | Wu Yunfang Zhang Liangliang |
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| Abstract: | The conventional methods of numerical modal analysis for vibrating structure, in the case of energy dissipation system, are usually of low precision and time concsuming. A modal expansion method of high precision based on improved first order pertubation analysis is put forward to solve the eigenprolem of vibrating stracture. The proper expressions of the first order pertubation analysis is put forw ard to solve the eigenproblem of vibrating stracture. The proper expressions of the first order pertubation are also deduced to resolve the force coupled vibration. Examples show the real effectiveness of the method presented. |
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| Keywords: | energy dissipation system pertubation analysis vibration mode decomposition |
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