摘要
飞机概念设计多目标优化的结果基本决定了飞机的总体外形。为提高多目标优化结果解集的优选效率,在多目标方案对比评价方法和可视化辅助评价支持两方面对飞机多目标方案优选方法进行了研究。首先在研究了线性加权和法及欧氏加权距离法的基础上,提出了体现具体目标对比的基于等效多边形的等效面积评价法,并进行了改进。其次,采用量化指标初选与可视化目标对比及方案模型可视化精选相结合的方式,在概念设计平台上实现了多目标方案优选方法。最后在轻型战斗机概念方案多目标优化实例中利用提出的优选方法对优化非劣解集进行了优选,结果验证了可视化辅助评价支持的优选方法方便快速获取满意方案的有效性。
Aircraft preliminary configuration is mainly determined by the results of multiobjective optimization in aircraft conceptual design. Therefore, methods for muhiobjective concept comparison and evaluation with the support of visual auxiliary evaluation are studied in this article to improve the preferred selection efficiency of muhiobjeetive optimization results. First, on the basis of the research of the linear weighted sum method and the weighted Euclidean distance method, an equivalent area method based on equivalent polygons is proposed and further improved, which emphasized the comparison of detailed objects. Then a preferred selection method for multiobjective concepts is realized in a conceptual design platform, in which a preliminary selection using quantitative index is combined with a further selection that employed visual object comparison and concept model demonstration. Finally, the proposed preferred selection method is applied to the muhiobjective op timization of the conceptual design of a light fighter, which validates the effectiveness of the method： a satisfactory concept is rapidly and conveniently obtained by means of the preferred selection method with visual auxiliary evaluation support.
出处
《航空学报》
EI
CAS
CSCD
北大核心
2009年第8期1447-1453,共7页
Acta Aeronautica et Astronautica Sinica
关键词
飞机设计
优选方法
等效面积法
可视化
优化
aircraft design
preferred selection method
equivalent area method
visualization
optimization
