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工程力学  2014 

往复荷载作用下的改进动接触力方法

, PP. 8-14

Keywords: 动接触力方法,显式积分法,往复荷载,接触状态,非线性动力学

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Abstract:

该文基于与中心差分显式时间积分法相结合的动接触力方法,引入主、从节点的相对速度作为判断接触状态转变的标准,提出了一种能够适用于求解往复荷载作用的改进动接触力方法。改进方法能够准确地模拟分离、静接触、滑动接触以及反向滑动四种不同接触状态间的转变,为地震等往复荷载作用下结构动力分析提供了有力工具。数值算例验证了该文方法的正确性。

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