作战飞机翼面损伤对其气动特性的影响研究  

Influence of combat aircraft's wing surface damaged on longitudinal aerodynamic characteristics

作　　者：高玉伟 韩庆[2] 张锋[2] 刘星[2] 

机构地区：[1]西安飞机设计研究所结构设计研究所,陕西西安710089 [2]西北工业大学航空学院,陕西西安710072

出　　处：《飞行力学》2013年第5期394-397,共4页Flight Dynamics

基　　金：973计划项目资助

摘　　要：作战飞机易损性分析是其生存力设计与评估的基础问题之一。参考某型战机实弹打击试验结果,分别建立了该机在破片、离散杆和连续杆战斗部打击下的三种典型损伤模型,基于N-S方程数值模拟的方法计算该机在受损前后的纵向气动特性。对连续杆战斗部所造成的切断损伤,进一步研究了纵向配平问题。研究结果表明,相对于破片和离散杆战斗部,连续杆战斗部造成的损伤对其气动影响更为显著,甚至可能导致飞机在特定状态下的杀伤。研究结果可用于战损飞机杀伤准则的判定。Vulnerability assessment of combat aircraft is one of the basic issues in the survivability design and evaluation process. This paper takes the certain type of fighting aircraft as the research target to es- tablish the three representative damage models. The longitudinal aerodynamic characteristics of the dam- age models and the normal model in cruised condition is calculated based on the N-S equation numerical simulation. For the damage model of continuous rod warhead, this paper further studies the vertical bal- ancing problems at this time. The results of the study show that, compared to fragment and discrete bar warhead, the effect of damage caused by continuous bar warhead is more significant. It may the aircraft＇ s ruin under the particular state. The result of this paper can be used for the fighting damaged aircraft＇s kill guidelines.

关 键 词：作战飞机 易损性 战斗部 气动特性 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程] V221