摘要
基于某兆瓦级大型风力发电机组,研究了离心力引起的刚化效应对风电机组叶片结构性能的影响。结果表明,离心力将使叶片的低阶固有频率显著增加,叶片的位移变形和应变显著减小,同时在一定程度上提升了叶片的结构稳定性。分析结果对后续风电叶片的设计具有参考和借鉴意义。
The effects of stiffening caused by the rotating centrifugal force on the blade structural properties were studied, basing on one type of MW wind turbine blade. The results show that the natural frequency of blade increase significantly, the displacements and strains decrease＇, obviously due to the effects of rotating centrifugal force. Meanwhile, the blade structure stability was enhanced to some extent. The analysis results have good reference to the design of wind turbine blades in future.
出处
《大电机技术》
2016年第3期54-57,共4页
Large Electric Machine and Hydraulic Turbine
基金
四川省科技支撑计划项目资助(2014GZ0084)
关键词
风电叶片
离心刚化
频率
应变
结构性能
wind turbine blade
centrifugal stiffening
frequency
strain
structural properties
