空气动力学学报Issue(1)：134-141,8.DOI:10.7638/kqdlxxb-2013.0081
考虑机翼尾流影响的运输类飞机后体气动外形优化设计
Afterbody aerodynamic optimization design of transport airplane considering wing wake flow
白俊强 1孙智伟 1董建鸿 2黄江涛1
作者信息
- 1. 西北工业大学，陕西 西安 710072
- 2. 中国航空工业集团第一飞机设计研究院，陕西 西安 710089
- 折叠
摘要
Abstract
The aerodynamic optimization design of typical transport afterbody considering the influence of the wing wake flow is studied.An optimization framework is established for the aircraft configuration and used for afterbody optimization at crui-sing status.The objective of this framework is to optimize the afterbody considering the influence from other parts of aircraft and the engineering constraints simultaneously.The spatial property of the afterbody in spatial control frame is established by implementing the free form deformation (FFD)approach.The NURBS spline is chosen as the basis function,which can represent the property of spatial control element and is suitable for afterbody geometry.Infinite interpolation deforming grid technique is adopted to update spatial grid with high efficiency and mesh quality.The modified Kriging surrogate model and quantum particle swarm algorithm are included in the optimization system to increase efficiency and ability to find global op-timal solution.In order to reduce drag at cruising status,upswept angle and cross section shape are optimized as the main afterbody configuration parameters.The result of the case shows that the aerodynamic performance of the transport’s body is improved after the optimization.关键词
多学科优化设计/运输类飞机/FFD 技术/气动外形优化/Kriging 代理模型/无限差值/量子粒子群Key words
multidisciplinary design optimization/transport’s afterbody/FFD technique/aerodynamic optimization/modi-fied Kriging surrogate model/infinite interpolation/quantum particle swarm algorithm分类
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白俊强,孙智伟,董建鸿,黄江涛..考虑机翼尾流影响的运输类飞机后体气动外形优化设计[J].空气动力学学报,2015,(1):134-141,8.
