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本文基于随机振动理论对实测的桅杆结构风洞试验数据进行处理，分析了桅杆结构风振响应的频谱特性，并且从频域着手通过简单的数值运算求得足够精确的等效应力用于计算桅杆结构的风振疲劳寿命，避免了雨流点法极大的工作量。
In this paper, the measured wind tunnel test data of the mast structure are processed based on the random vibration theory, and the spectrum characteristics of the wind-induced vibration response of the mast structure are analyzed. From the frequency domain, a simple numerical calculation is used to obtain a sufficiently accurate equivalent stress for the calculation of the mast. The wind-induced vibration fatigue life of the structure avoids the extreme workload of the raindrop method.