摘要
以气动力及雷达散射截面参数为目标函数 ,主要优化对总体外形和飞机性能影响较大的机翼、尾翼的平面形状几何参数以及少数几个机身几何参数 ;根据第 4代战斗机的设计要求 ,确定各个目标的理想值、最低可接受值 ,以及各个约束的满足区间 ,应用模糊优化理论 ,建立各个目标的满意度函数及各个约束条件的满足度函数 ,并使用多目标总满意度函数和常权、变权的不同组合 ,建立了 5种外形参数模糊优化模型 ,使设计人员可以根据不同的设计思想和设计目的选择优化模型与翼面形状的组合 .
Basing on the aerodynamic and RCS objectives, the geometrical parameters of the wing and tail plan form and few geometrical parameters of fuselage are optimized. According to the requirements of the forth generation of fighter, the desirable and acceptable values of the objectives and constraints were determined. And according to the theory of fuzzy optimization, the satisfactory function of each objectives and constraints were determined. Then, 5 fuzzy optimization model are established by the application of different combinations of general satisfactory function and fluctuant weights or constant weights. So the designers can make choice according to their different design concepts and purposes.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
2001年第1期76-78,共3页
Journal of Beijing University of Aeronautics and Astronautics
