| 桅杆结构中纤绳的参数振动 |
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| 引用本文： | 李树逊,王肇民. 桅杆结构中纤绳的参数振动[J]. 同济大学学报(自然科学版), 2000, 28(3): 262-266 |
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| 作者姓名： | 李树逊 王肇民 |
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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： | 国家自然科学基金资助项目! (5 97780 30 ) |
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| 摘 要： | 以桅杆结构中的纤绳为研究对象,建立了在一端运动下纤绳的非线性振动理论模型,并用数值方法分析了其参数振动特性。研究表明,纤绳倾角,预拉应力、阻尼比和激励振幅对纤绳的参数振动产生着重要影响。
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| 关 键 词： | 桅杆结构 纤绳 参数振动 塔桅结构 非线性振动 |
Parametric Vibration of a Guy in Guyed Mast Structure |
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| LI Shu-xun,WANG Zhao-min. Parametric Vibration of a Guy in Guyed Mast Structure[J]. Journal of Tongji University(Natural Science), 2000, 28(3): 262-266 |
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| Authors: | LI Shu-xun WANG Zhao-min |
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| Abstract: | This paper deals with the vibration of a guy that may be excited by small motions of the mast. A theoretical model is developed for the study of nonlinear vibration of an inclined guy. Numerical analysis is used to predict the parametric vibration. It is shown that reasonably small anchorage amplitudes may lead to important guy vibration. It is also found that excitation amplitude, pretension, tilt angle and damping ratio play very important roles in parametric resonance. |
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| Keywords: | guyed mast guy parametric vibration |
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