风力发电机组液压变桨机构运动与强度分析  

Analysis on kinematics and strength of the hydraulic pitch mechanism of a wind turbine

作　　者：张锁怀[1] 贾坤[1] 张平满[1] 

机构地区：[1]上海应用技术学院机械与自动化工程学院,上海200235

出　　处：《机械设计与制造》2011年第10期204-206,共3页Machinery Design & Manufacture

基　　金：上海市重点科技攻关项目资助(071105116)

摘　　要：将各个构件的Solidworks实体模型导入ANSYS中,生成柔性体模态中性文件,将该柔性体导入ADAMS中替换原有的刚性体,建立变桨机构的刚柔混合体模型。利用ADAMS对风力发电机组变桨机构的模型进行变桨精度分析,发现实际变桨速度和角位移与理论值有一定误差,提出了在桨叶盘上增设位置传感器,利用传感器发出的信号控制液压缸动作,对变桨误差进行补偿;将运动仿真过程中产生的零件载荷文件,导入ANSYS中,对关键零件进行强度分析,指出了各零件易破坏位置与最大应力位置,设计时应注意保护。After the Solidworks model being inputted into the ANSYS software,the file of mode is created,and the original rigid body is replaced with the flexible body to build a mixed rigid and flexible body model in ADAMS.Then kinematic accuracy of the pitch mechanism of a wind turbine is analyzed,which results show that the difference of the pitch angle and speed exist between the actual and theoretical value due to the elastic deformation of the parts and the hydraulic oil,therefore monitoring sensors are proposed to be fixed on the blade plate and used to control the hydraulic cylinder motion and compensate the moving error.A file related with loads information of the key parts is created after motion simulation.After the file being input in ANSYS,the strength of the key parts is analyzed.Based on the results,the location,where the material was easy to yield or the maximum stress exist,is found,which should be protected during designing.

关 键 词：风力发电机组 变桨机构 运动仿真 变桨精度 强度分析 

分 类 号：TH113.1[机械工程—机械设计及理论] TH132.41