摘 要：现代大型兆瓦级风力发电机组（以下简称风机）在风场需承受各种高强度又复杂的风力载荷，与其他工业产品相比，它的使用寿命又非常长。因此对那些关键零件进行疲劳寿命分析十分有必要。在此基础上，实现风机零件结构优化并减轻重量。本文详细介绍了适用于风机关键零件的疲劳寿命分析方法。
关键词： 风力发电机 载荷 雨流计算 S/N 曲线 材料 应力假设
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