THEORETICAL AND EXPERIMENTAL RESEARCH ON DYNAMIC BEHAVIOR OF GUYED MASTS UNDER WIND LOAD  

作　　者：MaXing WangZhonggang DengHongzhou WangZhaomin 

机构地区：[1]DepartmentofEngineeringMechanicsandTechnology,TongjiUniversity,Shanghai200092,China [2]DepartmentofCivilEngineering,TongjiUniversity,Shanghai200092,China

出　　处：《Acta Mechanica Solida Sinica》2004年第2期166-171,共6页固体力学学报（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (No. 59778030).

摘　　要：A frequency-domain algorithm is presented for the dynamic analysis of guyed masts. By introducing a four-degrees-of-freedom model of a suspended cable, guyed masts are simpli?ed as an equivalent cable-beam model. Then, based on the discrete random vibration theory, recurrence formulas for the statistical moments of the wind-induced behavior of guyed masts are developed with the wind load treated as ?ltered white noise excitation. The dynamic analysis of a two-level guyed mast has been illustrated. Finally, results from a wind-tunnel experiment of guyed mast are used to testify the theory developed in this paper.A frequency-domain algorithm is presented for the dynamic analysis of guyed masts. By introducing a four-degrees-of-freedom model of a suspended cable, guyed masts are simpli?ed as an equivalent cable-beam model. Then, based on the discrete random vibration theory, recurrence formulas for the statistical moments of the wind-induced behavior of guyed masts are developed with the wind load treated as ?ltered white noise excitation. The dynamic analysis of a two-level guyed mast has been illustrated. Finally, results from a wind-tunnel experiment of guyed mast are used to testify the theory developed in this paper.

关 键 词：guyed masts four-degrees-of-freedom cable model discrete random vibration wind  tunnel experiment 

分 类 号：TM246[一般工业技术—材料科学与工程] O324[电气工程—电工理论与新技术]