ARJ 21飞机起飞速度全局优化方法及效果

为了充分挖掘ARJ 21飞机的性能潜力,提高国产民机商载能力,本文在满足规章要求的前提下,通过分析比较ARJ 21飞机V1/VR、V2/VS在各自可选范围内对最大起飞重量的影响规律；同时讨论了典型运行条件下能够获得最佳载量能力的V1/VR、V2/VS最优取值区间,研究了速度全局优化对最大起飞重量的提升效果；最后以遍历算法为参照,讨论了黄金分割法和遗传算法实施全局优化可行性和有效性。结果表明,ARJ 21飞机实施速度全局优化确能有效提升起飞商载能力,经济效果良好,此外,使用遗传算法能更加高效地完成最大起飞重量全局优化,是一种快速获得最大起飞重量最优解的有效方法。

Research on full range optimization method and effect for takeoff speed of ARJ 21

In order to fully expand the performance potential of ARJ 21 aircraft and improve the commercial load capacity of domestic civil aircraft, this paper, on the premise of meeting the regulatory requirements, analyzes and compares the influence of V1/VR and V2/VS of ARJ 21 aircraft on the maximum takeoff weight within their respective optional ranges; At the same time, the optimal value intervals of V1/VR and V2/VS which can obtain the best load capacity under typical operating conditions are discussed, and the effect of full speed range optimization on the maximum takeoff weight is studied; Finally, the feasibility and effectiveness of the golden section method and genetic algorithm for global optimization are discussed with reference to the ergodic algorithm. The results show that the implementation of full speed range optimization can indeed improve the takeoff commercial load capacity of ARJ 21 aircraft, and the economic effect is significant. In addition, the use of genetic algorithm can obtain the global optimization results more efficiently, and the error meets the actual operation needs, which is an effective method to quickly obtain the optimal solution of the maximum takeoff weight.