摘要
作战飞机的易损性分析是其生存力设计与评估的基础问题之一,目前国内外对于战损飞机气动特性的分析评估问题研究较少。以某型战斗机为研究对象,分别建立了其在破片和离散杆两种战斗部打击下的损伤模型,基于N-S方程数值模拟的方法,计算并对比分析了巡航状态下,该飞机两种损伤模型及其无损伤模型纵向气动特性的差异,结果表明,相对于破片战斗部,离散杆战斗部所造成的损伤对飞机纵向气动特性的影响更为显著。结论对于战损飞机杀伤准则的确定具有一定的参考价值。
Vulnerability assessment of fighting aircraft is one of the basic issues in the survivability design and evaluation process. It is rarely studied on aerodynamic injury problems all over the world. This paper put the certain type of fighting aircraft as the research target to establish the damaged models. Based on the N- S equation numerical simulation to calculate and analysis the Longitudinal Aerodynamic Performance difference between the two damaged models and the normal model in cruised condition. The results of the study show that, compared to fragment warhead＇s , the discrete bar warhead＇s damage effect is more significant. This will provide some references for the judgment of the fighting Damaged Aircraft＇s kill condition.
出处
《航空计算技术》
2013年第2期48-50,55,共4页
Aeronautical Computing Technique
基金
国家973计划项目资助
关键词
作战飞机
易损性
破片
离散杆
纵向气动特性
fighting aircraft
vulnerability
fragment
discrete bar
longitudinal aerodynamic performance
