基于NSGA-Ⅱ的超音速飞机最快爬升轨迹分析  

Analysis of Supersonic Airplane's Fastest Climb Trajectory Based on NSGA-Ⅱ

作　　者：安兵辉[1] 韩庆[1] 王广博[1] 

机构地区：[1]西北工业大学航空学院,西安710072

出　　处：《科学技术与工程》2011年第33期8238-8242,共5页Science Technology and Engineering

摘　　要：参考了规划飞机最佳爬升轨迹的图解法—能量高度法。采用NSGA-Ⅱ算法求解了飞机最快爬升轨迹,即各能量高度单位剩余功率(Ps)值最大的轨迹。并通过对跨音速段的俯冲角度θ与过渡段的时间t的关系进行分析,求解出跨音速段的最佳俯冲角。从而解决了能量高度法在等能量高度发生跃升或者俯冲时不适用的问题。并以此对超音速飞机最快爬升轨迹跨音速段进行了修正。NSGA-Ⅱ is used to calculate the airplane＇s fastest climb trajectory,namely,the max ＂specific excess power＂（Ps） trajectory,consulting a graphic method,the energy method which is used to mark out optimal climb trajectory.At the same time,the amendatory method to solve the problem that energy method is inapplicable when the plane is in a dive or zoom along a curve of constant specific energy is also given by analyzing relationship between the dive angle and the time of transonic transition.

关 键 词：最快爬升 最优轨迹 NSGA-Ⅱ 俯冲修正 

分 类 号：V212.133[航空宇航科学与技术—航空宇航推进理论与工程]