关键词: 飞机设计, 优选方法, 等效面积法, 可视化, 优化

Abstract: Aircraft preliminary configuration is mainly determined by the results of multiobjective optimization in aircraft conceptual design. Therefore, methods for multiobjective concept comparison and evaluation with the support of visual auxiliary evaluation are studied in this article to improve the preferred selection efficiency of multiobjective 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 multiobjective optimization 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.

Key words: aircraft design, preferred selection method, equivalent area method, visualization, optimization