运输类飞机的机身抗烧穿性适航要求解析

Investigation on Fuselage Burn-through Resistance of Transport Category Airplanes

运输类飞机可生存坠撞后的火灾是客舱安全范畴内的重要问题之一。提高机身抗烧穿性,即推迟火焰进入客舱的时间,可为乘员应急撤离提供时间保证。介绍了运输类飞机坠撞后的池火火焰特征,包括最高温度、热流密度等特征的范围及其影响因素,重点论述了机身结构烧穿过程,剖析了适航规章中的抗烧穿符合性判据,梳理了抗烧穿性试验方法的发展过程,最后对我国未来运输类飞机机身抗烧穿研究的发展进行了展望。

For transport category airplanes,post-crash fire is one of the important problems to be considered for cabin safety. The time for evacuation that delaying fire or flame into cabin, namely fuselage burn-through resist-ance should be ensured. In this paper, the characteristics of post-crash fire,including the range of temperature, heat flux and influence factors are introduced, the process of fuselage burn-through, accounting for the criterion of airworthiness regulation on fuselage burn-through resistance are analyzed, the development of method of compliance to determine the burn-through resistance is stated,and development tendency of fuselage burn- through resistance in future is expected.