| 桅杆结构动力特性研究及试验验证 |
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| 引用本文： | 李树逊,代玉娟.桅杆结构动力特性研究及试验验证[J].特种结构,1998,15(2):39-41. |
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| 作者姓名： | 李树逊 代玉娟 |
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| 作者单位： | 同济大学结构工程学院!上海，200092 |
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| 基金项目： | 土木工程防灾国家重点实验室开放课题 |
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| 摘 要： | 本文通过对桅杆结构中纤绳及杆身的非线性分析，建立了桅杆结构空间自由振动方程，应用子空间迭代法可求得任意个低阶振型和频率。对不同风向及不同纤绳初拉力下桅杆结构的动力特性进行分析，与试验研究比较表明，理论计算结果与试验结果吻合良好。
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| 关 键 词： | 桅杆 非线性分析 动力特性 |
Researches and Experiment Studies on the Dynamic Characteristic of Guyed Mast |
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| Li Shuxun,Dai Yujuan,Wang Zhaomin.Researches and Experiment Studies on the Dynamic Characteristic of Guyed Mast[J].Special Structures,1998,15(2):39-41. |
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| Authors: | Li Shuxun Dai Yujuan Wang Zhaomin |
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| Abstract: | In this paper the formula for calculating the free vibration of guyed mast has been presented through its nonlinear dynamic analysis. The Sub-space iterate method is used to find arbitrary numbers of lower modes and frequencies, and the influnce of initial cable stresses and wind directions on dynamic characteristic of guyed mast is analyzed. The results of the theory and the experiment agree satisfactorily. |
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| Keywords: | Guyed mast Nonlinear analysis Dynamic characteristic |
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