| 线性土-结构动力相互作用时域-频域联合解法 |
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| 引用本文： | 丁海平,廖振鹏.线性土-结构动力相互作用时域-频域联合解法[J].地震学报,2001,23(4):413-419. |
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| 作者姓名： | 丁海平 廖振鹏 |
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| 作者单位： | （中国哈尔滨150080中国地震局工程力学研究所） |
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| 基金项目： | 地震科学联合基金 (1 0 0 0 2 5 )资助项目 |
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| 摘 要： | 提出一种线性土-结构动力相互作用时域-频域联合解法．首先，用近场波动数值模拟解耦技术求得在短时脉冲作用下采用Rayleigh阻尼系统的时域解；再对时域解进行富立叶变换得到相应频域解；然后根据阻尼与系统动力反应结果的关系，利用泰勒级数展开技术得到具有复阻尼系统的频域解．这一方法充分利用了时域解耦显式算法的优点，提高了线性土 结构动力相互作用分析的计算效率．
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| 关 键 词： | 土-结构动力 相互作用 时域 频域联合解法 Rayliegh阻尼 复阻尼 |
| 文章编号： | 0253-3782(2001)04-0413-07 |
| 修稿时间： | 2000年12月11 |
A HYBRID ANALYSIS METHOD FOR LINEAR DYNAMIC SOIL-STRUCTURE INTERACTION IN TIME AND FREQUENCY DOMAIN |
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| Ding Haiping,Liao Zhenpeng.A HYBRID ANALYSIS METHOD FOR LINEAR DYNAMIC SOIL-STRUCTURE INTERACTION IN TIME AND FREQUENCY DOMAIN[J].Acta Seismologica Sinica,2001,23(4):413-419. |
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| Authors: | Ding Haiping Liao Zhenpeng |
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| Abstract: | A hybrid analysis method in time and frequency domains for linear soil structure interaction is presented. First, the time domain solution of the system with Rayleigh damping excited by a short time impulse is obtained by the decoupling numerical simulation technique of near field wave motion. Then, the corresponding frequency domain solution can be got by Fourier transform. According to the relationship between damping value and dynamic response of a system, the solution of the system with complex damping can be got by Taylor expansion. The hybrid method makes the best of decoupling and explicit algorithm in time domain, and increases the calculation efficiency for linear soil structure interaction analysis. |
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| Keywords: | dynamic soil structure interaction hybrid method in time and frequency domain Rayleigh damping complex damping |
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