标题：Flap/lead-lag nonlinear aeroelastic stability of a wind turbine blade system during dynamic stall
作者：Ren, Yong-Sheng ;Lin, Xue-Hai
作者机构：[Ren, Yong-Sheng ;Lin, Xue-Hai ] College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266510, Chin 更多
来源：Zhendong yu Chongji/Journal of Vibration and Shock
摘要：Here, stability of a wind turbine blade nonlinear aeroelastic system during dynamic stall was investigated. The structural model consisted of a typing blade section subjected to flap/lead-lag motion. The aerodynamic loads during dynamic stall were computed using a semi-empirical and nonlinear Onera model. To avoid errors introduced by linearization assumptions, the non-linear time domain integrals were conducted for simulations to evaluate nonlinear aeroelastic behavior of this system. A parametric study on the flutter behavior of the system was performed. The effects of the structural damping parameter not studied in most previous analyses were given.