摘要
针对飞翼布局飞机常用的负弯度翼型在单点优化设计时,缺乏对非设计点气动性能考虑的问题,建立了基于遗传算法的亚音速翼型多点设计优化平台,并将其应用于一个负弯度翼型的2点设计优化过程;结果表明,优化后的翼型与初始翼型相比,在巡航设计点和待机设计点的性能分别有了一定程度的改善,实现了多点设计的目的,也说明了所建立的翼型设计平台的可行性,为飞翼布局飞机的设计发展提供了良好的基础。
For reflex foil used in Blended Wing Body plane, when utilizing a single point design optimization to design an airfoil, a problem about the absent consideration at off- design point often arises. This paper builds a subsonic airfoil multi- point design optimization process and applies it to a two- point design of a reflex foil. Results of this design process appear that, aerodynamic performances at the cruise design point and at the loiter design point have both been improved. The purpose of multi- point design has been completed. It also proves the feasibility of this subsonic multi- point design optimization process, and provides a favorable groundwork for the design of BWB planes.
出处
《航空计算技术》
2009年第1期45-47,共3页
Aeronautical Computing Technique
