摘要
该文发展了一种适用于风力机叶片的动力学响应计算方法,该方法考虑到叶片的实际工作状况及计算量的大小,选用修正的动量叶素理论和梁单元作为流体和结构模型,并将动态失速模型与动量叶素理论结合计算气动力;以Marc通用有限元计算程序为基础平台,将气动力计算程序写入子程序中,并根据子程序的调用特点,实现了在每个增量步中气动和结构边界条件的相互交换。最后给出计算算例,得到的计算结果与实际使用情况相符合。
A new method for the dynamic response of wind blade which considering the actual working state of blade and the proper calculation requirement was developed. The blade element momentum theory and beam element were chosen as the aerodynamic and blade model, respectively and the blade element momentum theory was used to the dynamic stall model to calculate the aerodynamic force. Adopted the Marc as the fundamental platform and wrote the program of aerody- namic calculation into subroutine which could realize the boundary conditions exchange of fluid and structure in each in- crement. The result of the calculation example showed good agreement with the real situation.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2010年第7期917-922,共6页
Acta Energiae Solaris Sinica
关键词
风力机叶片
气动弹性
气动阻尼系数
wind turbine blade
aeroelastic
aerodynamic damping ratio
