【摘要】 根据脉动风速的功率谱和相干函数,采用谐波合成法(HSM),实现了对近海风力机脉动风场脉动风速时程的模拟。在此基础上,结合动量叶素理论对风机气动性能的计算结果,得到由脉动风场引起的风力涡轮机的随机空气动力荷载,为海上风力机支撑结构的动力反应计算提供了外部荷载。更多还原

【Abstract】 Based on the power spectrum and coherence function of turbulent wind velocity,the harmony superposition method(HSM)was employed to synthesize the time history of turbulent wind velocity in the field of offshore wind turbine.Using the momentum theory and blade element theory,aerodynamic performance of wind turbine was obtained and random aerodynamic loads of the offshore wind turbine were calculated,which supplied exterior loads for analyzing dynamic response of the supporting structure of offshore wind turbine.更多还原