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本文提出了对桅杆结构进行疲劳风振分析的一种方法；借助于桅杆所在地的风速资料，利用接近于实际的风模拟荷载，对桅杆结构进行时域内的非线性分析，从而得到了风载下桅杆结构易破坏处应力的时程曲线。通过雨流点数计算方法，可得到不同风速下、不同应力水平下的结构年实际循环次数，并可确定结构在已使用时间内不同应力水平下的实际循环次数，结合结构疲劳Ｐ—Ｓ—Ｎ曲线及Ｍｉｎｅｒ线性累积损伤理论，可对桅杆进行剩余寿命估计。
This paper proposes a method for fatigue wind vibration analysis of the mast structure. Based on the wind velocity data of the mast site, using the wind simulation load close to the actual wind, the nonlinear analysis of the mast structure in the time domain is performed, and the wind load is obtained. Time history curve of the stress of the easily damaged structure of the mast. Through the rainwater flow point calculation method, the actual cycle times of the structure under different wind speeds and different stress levels can be obtained, and the actual cycle times of the structure under different stress levels in the used time can be determined, combined with structural fatigue P-S-N Curve and Miner linear cumulative damage theory can estimate the remaining life of the mast.