| 考虑纤绳振动桅杆结构的随机风振分析 |
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| 引用本文： | 马星 李泽. 考虑纤绳振动桅杆结构的随机风振分析[J]. 同济大学学报(自然科学版), 1998, 26(6): 631-635 |
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| 作者姓名： | 马星 李泽 |
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| 作者单位： | 同济大学建筑工程系!上海，200092 |
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| 基金项目： | 国家自然科学基金!59778030 |
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| 摘 要： | 在4振型自由度索单元的基础上，推导出在强迫振动下纤绳动张力实用计算公式和振动桅杆的扩阶计算方程。推导过程中，考虑了纤绳在空间的耦合振动以及纤绳和杆身的相互作用。通过空间风荷载的模拟，给出计算实例。计算结果表明，研究桅杆风振响应时不能忽略纤绳非弦向振动的影响
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| 关 键 词： | 纤绳动张力 桅杆结构 随机风振 扩阶系统 |
Analysis of Guyed Mast under Stochastic Wind Load when Oscillation of Cables is Considered |
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| Ma Xing, Li Ze, Jiang Tao, Xie Yinlong. Analysis of Guyed Mast under Stochastic Wind Load when Oscillation of Cables is Considered[J]. Journal of Tongji University(Natural Science), 1998, 26(6): 631-635 |
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| Authors: | Ma Xing Li Ze Jiang Tao Xie Yinlong |
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| Abstract: | A four - degree - of- freedom model of dynamic cable is studied and dynamic equations of guyed mast expanded order system are derived. Couplings between different planers motion of a cable and between cables and mast are considered. An example is given after simulation of wind as multi - corelated stochastic processes. Results show that oscillation of cable should be considered in studies on dynamic response of guyed mast reduced by wind load. |
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| Keywords: | Dynamic tension of cable Guyed mast Wind-reduced vibration System of expanded order |
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