Nonlinear discrete analysis method for random vibration of guyed masts under wind load |
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Authors: | He Yan-li Ma XingWang Zhao-min |
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Affiliation: | a Space Structures Research Center, Shanghai Jiaotong University, Room 2304, Haoran High Tech., Building, 1954 Huashan Road, Shanghai 200030, Chinab Department of Civil Engineering, Tongji University, Shanghai 200092, China |
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Abstract: | Based on the idea of the discrete analysis method of random vibration, the paper studied the wind-induced response of guyed masts, the Gaussian close assumption is adopted to close the mean square equations when taking into account the nonlinearity of cables. The wind load is generated from spatially correlated filtered white noise. The discrete random vibration method can calculate accurate mean and mean square responses, the wind responses analysis for a numerical example demonstrate this point, and the results of discrete random vibration method is close to the results of experiment through wind-induced response analysis of a wind tunnel experiment model. |
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Keywords: | Guyed mast Discrete random vibration Gaussian close assumption |
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