摘要
旋转是叶片的主要工作方式,叶片轴向力与切向力的大小随叶片的旋转而时刻发生变化,导致重力对叶片每个旋转位置有不同程度的影响。应用ANSYS软件建立旋转状态下叶片的有限元模型,对其进行动力学分析。分析结果表明:叶片的最大变形量为0.327mm,位于叶尖附近,远小于玻璃钢叶片的最大弯曲变形要求;叶片的最大应力值为1.04MPa,远小于玻璃钢的抗拉强度。通过分析确认,重力对风力发电机叶片的整体力学性能影响较小。
Rotation is the main working mode of the blade. The axial force and tangential force of the blade are changing with the rotation of the blade, which causes the gravity to have different degrees of influence on each rotating position of the blade. The finite element model of the blade in the rotating state was established by ANSYS software, and the kinetic analysis was carried out. The analysis results show that the maximum deformation of the blade is 0.327 mm, which is located near the tip of the blade, which is much smaller than the maximum bending deformation requirement of the FRP blade. The maximum stress value of the blade is 1.04 MPa, which is much smaller than the tensile strength of FRP. It is confirmed by analysis that gravity has little effect on the overall mechanical properties of the blade of wind turbine.
出处
《机械制造》
2019年第12期56-59,共4页
Machinery
基金
内蒙古自治区自然科学联合基金资助项目(编号:2018LH05008)。
