| 具有库仑摩擦力的结构动力分析 |
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| 引用本文： | 申祖武,王天运,任辉启,刘水江.具有库仑摩擦力的结构动力分析[J].武汉理工大学学报,2003,25(3):48-51. |
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| 作者姓名： | 申祖武 王天运 任辉启 刘水江 |
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| 作者单位： | 1. 武汉理工大学
2. 总参工程兵科研三所 |
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| 基金项目： | 军队国防科研攻关项目 (W5 0 2 ) |
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| 摘 要： | 应用振型叠加法对具有库仑摩擦力的结构进行动力分析，用假想力矢量表示因摩擦力引起的非线性，用有限元求解运动方程，在地震期间，地面上的结构可能滑移，相应的位移包括弹性位移和刚体运动2部分，考虑刚体运动需要进行高模态的瞬态分析，算例分析了地震期间地面上平板的动力响应。
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| 关 键 词： | 振型叠加法 库仑摩擦力 动力分析 核电站 |
| 文章编号： | 1671-4431(2003)03-0048-04 |
| 修稿时间： | 2002年12月4日 |
Dynamic Analysis of a Structure with Coulomb Friction |
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| Shen Zuwu,Wang Tianyun,Ren Huiqi,Liu Shuijiang.Dynamic Analysis of a Structure with Coulomb Friction[J].Journal of Wuhan University of Technology,2003,25(3):48-51. |
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| Authors: | Shen Zuwu Wang Tianyun Ren Huiqi Liu Shuijiang |
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| Affiliation: | Shen Zuwu Wang Tianyun Ren Huiqi Liu Shuijiang |
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| Abstract: | A modal superposition method for the dynamic analysis of a structure with coulomb friction is presented. The finite element method is used to derive the equation of motion, and the nonlinearities due to friction are represented by a pseudo-force vector. A structure standing freely on the ground may slide during a seismic event. The relative displacement response may be divided into two parts: elastic deformation and rigid body motion. The presence of rigid body motion necessitates the inclusion of the higher modes in the transient analysis. In a problem, the dynamic response of a platform standing freely on the ground is analyzed during a seismic event. |
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| Keywords: | modal superposition method coulomb friction dynamic analysis nuclear power station |
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