| 弹塑性随机振动系统中恢复力数学模型的若干形式 |
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| 引用本文： | 欧进萍,吴波.弹塑性随机振动系统中恢复力数学模型的若干形式[J].应用力学学报,1995(1). |
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| 作者姓名： | 欧进萍 吴波 |
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| 作者单位： | 哈尔滨建筑工程学院 |
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| 摘 要： | 本文基于弹塑性随机振动系统恢复力数学模型的统一形式，提出了能考虑刚度下降段和系统在滞变过程中强度退化的四种恢复力数学模型，为适应系统在多次强随机干扰下的反应分析需要，根据试验结果，提出了经受过强随机干扰的有损伤系统的恢复力模型，并建立了相应的数学表达式，最后针对钢筋砼框架结构在主余震作用下的弹塑性地震反应分析给出了具体算例。
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| 关 键 词： | 恢复力模型 滞变位移 强度退化 滞变耗能 有损伤系统 随机反应 |
Several Analyeic Models of Restoring Force of Elastoplastic Random Vibration System |
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| Ou Jingping,Wu Bo.Several Analyeic Models of Restoring Force of Elastoplastic Random Vibration System[J].Chinese Journal of Applied Mechanics,1995(1). |
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| Authors: | Ou Jingping Wu Bo |
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| Institution: | Harbin Architectural and Civil Engineering Institute |
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| Abstract: | In this palper,based on the united form of analytic models of restoring force of elastoplastic ran-dom vibration system, four analytic models of restoring for ce which takes accou nt of the negativestiffness and the deterioration in strength have been presented.In order to meet the needs of responseanalysis of system under several severe random excitation,and by using the results of experiments,the model of restoring force of damaged system and its analytic formula have been given in this paper.In the end,a numerieal example of elastoplastic response analysis of R.C. frame structure undermainshock and aftershock is given. |
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| Keywords: | restoring force model hysteretic displacement deterioration in strength hysteretic energy damaged system random response |
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