从叶片的铺层角度出发，编程建立了一种风力机叶片的约束优化设计模型。采用风力机叶片主梁帽的铺层厚度及位置为优化设计变量，在保证气动外形不变，满足各种约束的情况下，以获得最大一阶挥舞频率为设计目标，使用改进粒子群算法进行搜索约束优化解。结果表明：合理地设计主梁帽的铺层厚度和位置能得到更好的结果，验证了模型的有效性。优化结果对工程设计具有一定的参考价值。
A constraint optimization design model was developed and programmed to optimize the frequency of wind turbine blade based on blade layers. In this model, the thickness and the location of the layers on the main spar caps are chosen as the optimization variables. The optimization objection is making the first flap frequency of the blade have maximum value while keeping fixed aerodynamic profile and satisfying the constraints. An improved particle swarm optimization （PSO） algorithm was used to search the constrained optimum solution. The results show that designing the thickness and the location of the layers on the main spar caps reasonably can get better result. So it also verifies that this model is efficient. The optimization results have some certain guiding value for engineering design.
参考文献
| [1] | Karam Y. Maalawi;Hani M. Negm .Optimal frequency design of wind turbine blades[J].Journal of Wind Engineering and Industrial Aerodynamics: The Journal of the International Association for Wind Engineering,2002(8):961-986. |
| [2] | 李成良,陈淳.风力机叶片的结构分析与铺层优化设计[J].玻璃钢/复合材料,2009(06):50-53. |
| [3] | 王建礼,赵晓路,廖猜猜,石可重,徐建中.风力机叶片固有频率优化设计研究[J].工程热物理学报,2010(11):1843-1846. |
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