The Design and Prestressed Modal Analysis for Megawatt-class Wind Turbine Rotor

摘要：

　　The blade is an important component of the wind turbine, which is essential to proper blade design.This paper summarizes the process of the blade design, the selection of the design parameters, and the design of megawatt-scale blades.The finite element method was applied on the model generated in 3D graphics software.After selecting the material parameters of the blade, the modal analyses under prestresses were conducted so as to determine the modal shapes, frequency, maximum deflection and maximum stress at different orders of vibration.Thus the results were compared with those of modal analysis under the non-prestressed condition.Thus the conclusion on the effect of gravity and rotation-prestress on the modal frequency, maximum deflection and maximum stress in modal analysis will be drawn.

关键词： Wind turbine megawatt-class modal analysis blade design

作者: Wei Gao Chun Li Quan Liu Yu Chen

作者单位: School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai,200093,P.R.China

会议类型: 国际会议

会议名称: the 2012 International Conference on Vibration, Structural Engineering and Measurement (2012年振动、结构工程与测量国际会议(ICVSEM2012))

会议地点: 上海

会议语种:英文

页码: 295-298

在线出版日期: 2012-10-19（万方平台首次上网日期，不代表论文的发表时间）