空气动力学学报2012，Vol.30Issue(1)：74-79,6.
基于非定常涡格法的扑翼飞行器气动特性优化
Optimization of the aeroydnamics of the flapping-wing based on unsteady vortex lattice method
摘要
Abstract
In order to develop theoretical instructions for the design of flapping wing macro aviation vehicle (FMAV) , the aerodynamic optimization of the FMAV has been studied. Firstly, an FMAV wake vortex model for the Unsteady Vortex Lattice Method (UVLM) is proposed. Then, a visual program based on object-oriented technique is developed for this method. Furthermore, by utilizing the parallel processing capability of GPU, the iteration on the UVLM model is optimized, which results in the computation time savings being up to 3/4. Finally, by embedding the UVLM to the Pattern-Search method, the elementary optimization of geometry shape of flapping wing and the flapping parameters have been accomplished. The results show that the shape of the wing should be designed as inverted structural trapezoid which is of larger area in its outer wing section so that larger air thrust could be produced. On the contrary, the wing should be designed as positive trapezoid and of larger area in its inner wing section if larger air lift is desired. In order to improve the air thrust, it should increase the flapping frequency and decrease the flexible twist angle. It is concluded that the Pattern-Search method,which embeds UVLM to carry out iterative aerodynamic calculation, is an available method for the FMAV optimization.关键词
扑翼飞行器/尾涡模型/非定常涡格法(UVLM)/模式搜索法/气动优化Key words
flapping-wing/ wake vortex model/ unsteady vortex lattice method (UVLM) / Pattern-Search method/ aerodynamics optimization分类
航空航天引用本文复制引用
贺红林,周翔,朱保利,余春锦..基于非定常涡格法的扑翼飞行器气动特性优化[J].空气动力学学报,2012,30(1):74-79,6.基金项目
国家自然科学基金(50865009)和航空科学基金(2007ZA56001、2009ZA56001)资助 （50865009）
