In order to solve the problems of low utilization ratio,long production cycle and high cost of the main shaft of the high-power wind turbine,it is necessary to carry out cost-reduction design.The main shaft was changed from forging to casting,and its weak position was optimized,and the ultimate strength and fatigue strength were analyzed.The Von Mises stress and fatigue damage of the casting main shaft met the design requirements through the analysis of ultimate strength and fatigue strength.The study shows that the cost of casting main shaft is 210,000 yuan less than that of single forging main shaft,the cost is greatly reduced,and the enormous economic benefit is produced,it provides a reference for the structural design and strength analysis of casting main shaft of the high-power wind turbine.
关键词
大功率/风力发电机组/铸造主轴/结构设计/强度分析
Key words
high-power/wind turbine/casting main shaft/structural design/strength analysis