| 基于3D塔架结构的随机动力响应分析 |
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| 引用本文： | 陈兴,刘学峰,王传方.基于3D塔架结构的随机动力响应分析[J].农业装备与车辆工程,2007(9):28-30. |
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| 作者姓名： | 陈兴 刘学峰 王传方 |
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| 作者单位： | 1. 山东省农业机械科学研究所,山东,济南,250100
2. 山东省科技干部学校,山东,济南,250014 |
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| 摘 要： | 在随机载荷的激励作用下,系统塔架结构产生了一系列的随机性动力响应。利用有限元方法对塔架结构建模,并应用随机振动理论和有限元方法对塔架结构进行随机性动力响应分析,推导了结构在随机载荷激励下的位移、应力响应的功率谱和均方值的计算公式,这为以后分析塔架结构随机动力响应提供了计算理论;同时给出算例,分析结果,最终肯定了该理论的可行性和必要性。
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| 关 键 词： | 塔架结构 有限元方法 随机振动 |
| 文章编号： | 1673-3142（2007）09-0028-03 |
| 修稿时间： | 2007-06-07 |
Dynamic Analysis of Stochastic Response Based on 3D Tower Structures |
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| CHEN Xing,LIU Xue-feng,WANG Chuan-fang.Dynamic Analysis of Stochastic Response Based on 3D Tower Structures[J].Agricultural Equipment & Vehicle Engineering,2007(9):28-30. |
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| Authors: | CHEN Xing LIU Xue-feng WANG Chuan-fang |
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| Institution: | 1. Shandong Agricultural Machinery Research Institute, Jinan 250100, China; 2.Shandong Science and Technology Cadres College, Jinan 250014, China |
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| Abstract: | The effect of random stress on tower structures, can lead to the stochastic dynamic response. We first correctly create model with the help of finite element analysis method in this paper, then through random vibration theory and finite element method study stochastic dynamic response on tower structure, and formulate the calculating power spectra and mean values of the displacement and stress to the excitation of the random stress are derived. The results provide the theoretical basis for system analysis of stochastic dynamic response. |
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| Keywords: | tower structure finite element method random vibration |
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