飞机机动性效能评估的关键参量影响分析  

Influence Analysis on Key Parameters for Aircraft Maneuverability Effectiveness Evaluation

作　　者：赵志高 李岩 张曙光[2] Zhao Zhigao;Li Yan;Zhang Shuguang(Chinese Aeronautical Establishment,Beijing 100012,China;Beihang University,Beijing 100191,China)

机构地区：[1]中国航空研究院,北京100012 [2]北京航空航天大学,北京100191

出　　处：《航空科学技术》2022年第8期41-50,共10页Aeronautical Science & Technology

摘　　要：为了研究新一代战斗机的超机动性特点,需要对战斗机执行过失速机动动作进行作战效能评估,分析飞机机动性特点以及相关评估方法,建立基于仿真试验的机动性效能评估方法,研究超机动性提高战斗机近距空战效能的深层机理以及关键参数的影响。首先根据机动性效能评估特点,确定了使用模拟仿真法评估机动性效能;提出指向时间作为关键参数和评估指标,然后建立了能够代表超机动能力的等效系统模型,以指向时间为评估指标,分别执行Herbst机动、大迎角纵向捕获机动和大迎角纵-横向捕获机动,在仿真系统中进行试验,评估了飞机最大迎角、指向角对指向时间的影响;揭示了能够发挥超机动(过失速机动)效能的量化条件,即相比于常规机动,过失速机动的最大迎角需大于特定值时,其指向能力才更强,进而提出关键参数有利迎角。最后根据试验结果和分析规律,在飞机相关设计、飞行手册、战术动作、标准规范的研究或制修订时,需要考虑关键参数指向时间和有利迎角。In order to study the super maneuverability characteristics of the new generation of fighters,it's needed to evaluate the combat effectiveness of post stall maneuvers,analyze the aircraft maneuverability characteristics and related evaluation methods,establish a maneuverability effectiveness evaluation method based on simulation experiments,and study the deep mechanism of super maneuverability to improve the fighter's short-range air combat effectiveness and the influence on key parameters.Firstly,according to the characteristics of mobility effectiveness evaluation,the simulation method is determined to evaluate maneuverability effectiveness.The pointing time is proposed as the key parameter and evaluation index,and then an equivalent system model that can represent the super maneuverability is established.Taking the pointing time as the evaluation index,Herbst maneuver,high angle of attack longitudinal acquisition maneuver and high angle of attack longitudinal transverse acquisition maneuver are carried out respectively.Experiments are carried out in the simulation system to evaluate the influence on the aircraft's maximum angle of attack,pointing angle and design parameters on the pointing time.This paper reveals the quantitative conditions that can give full play to the effectiveness of super maneuver(post stall maneuver),that is,when the maximum angle of attack of post stall maneuver needs to be greater than a specific value compared with conventional maneuver.Its pointing ability is stronger,and then the key parameter favorable angle of attack is put forward.Finally,according to the experimental results and analysis rules,the pointing time and favorable angle of attack of key parameters need to be considered in the research,preparation and revision of aircraft related flight manuals,tactical actions and standard specifications.

关 键 词：模拟仿真 效能评估 过失速机动 指向时间 有利迎角 

分 类 号：V212.1[航空宇航科学与技术—航空宇航推进理论与工程]