摘要
为探究风力机湍流风况下结构动态响应,建立运行于以轮毂高度为参考点的全域风场中的风力机整机模型,以拉格朗日算法进行多体动力学仿真,分析叶片和塔架结构动态响应。风况模拟采用Kaimal风谱,包括不同风速以及稳态和湍流多种情况。结果表明：叶尖位移和叶根力矩挥舞方向大于摆振方向;叶尖位移集中于风轮转动频率附近;塔顶位移仅为塔架高度的0.15%～0.30%。
To study the dynamic responses of wind turbines under the turbulent wind condition,the whole wind turbineis modelled in a full-field wind farm,which takes the hub-height as the reference point. The Lagrange equation is usedfor solving the multibody dynamic simulation. The dynamic responses for the blades and tower are analysed. The Kaimalwind spectrum is adopted to established the wind farm including the turbulent condition and the steady-state condition.The results show：the moments of the blade root and the displacement of the blade tip in flapwise are higher than inedgewise;the amplitude of the blade tip is almost near the rotary speed of the rotor;the displacement of the tower top isabout 0.15%-0.30% of the height of the tower.
作者
叶柯华
李春
丁勤卫
叶舟
Ye Kehua;Li Chun;Ding Qinwei;Ye Zhou(School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, Shanghai 200093, China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2018年第5期1459-1466,共8页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51176129)
上海市科委项目(13DZ2260900)
关键词
动力学仿真
风力机
湍流
动态响应
dynamic simulation
wind turbine
turbulent flow
dynamic response
