基于氧气相容性评估的工程定量选材方法  

Methods of Quantitative Materials Selection in Engineering Based on Oxygen Compatibility Assessment

作　　者：关月明 马明远 Guan Yueming;Ma Mingyuan(AVlC The First Aircraft Institute,Xi＇an 710089,China)

机构地区：[1]航空工业第一飞机设计研究院,陕西西安710089

出　　处：《航空科学技术》2018年第8期41-47,共7页Aeronautical Science & Technology

摘　　要：氧气系统具有不可避免的火灾危害,因此材料选用对于氧气系统安全性设计至关重要。氧气相容性评估已成为材料适用性判断的重要手段,在航空航天氧气系统设计中日益受到重视。为了降低氧气系统火灾风险、提高选材效率,建立了工程适用的、操作性强的定量选材方法。结合材料在富氧环境中的燃烧试验数据和氧气相容性评估方法,归纳出工程定量选材的计算方法,并给出具体实施步骤。对比某型飞机氧气瓶充氧接嘴弹簧选材的计算和试验结果,验证了选材方法的有效性,可为氧气系统安全性设计提供参考。The oxygen system has an inevitable fire hazard, so the selection of materials is very important for the safety design of oxygen system. As an important means to judge the applicability of materials, oxygen compatibility assessment has been paid great attention in the design of aeronautics and astronautics oxygen system. In order to reduce the risk of fire in oxygen system and improve the efficiency of material selection, a suitable and operational quantitative material selection method was established. Combined with combustion test data of materials in oxygen- enriched atmospheres and oxygen compatibility assessment method, the calculation method of engineering quantitative material selection was summarized, and specific implementation steps were given. Comparing the calculation and experimental results of the material selection for the spring in an oxygen charging nozzle for a certain airplane, the validity of the material selection method was verified, and it can provide reference for the safety design of the oxygen system.

关 键 词：氧气相容性 定量选材方法 飞机氧气系统 安全性 层次分析法 

分 类 号：V25[一般工业技术—材料科学与工程]