民用飞机辅助动力装置进气系统降扬雪适航验证要求研究  

Airworthiness certification requirements of falling and blowing snow for APU inlet system of civil airplanes

作　　者：王晗[1] 刘昊 张强[1] WANG Han;LIU Hao;ZHANG Qiang(Shanghai Aircraft Design and Research Institute,Shanghai 201210,China)

机构地区：[1]上海飞机设计研究院,上海201210

出　　处：《民用飞机设计与研究》2020年第4期12-15,共4页Civil Aircraft Design & Research

摘　　要：CCAR和FAR附录APU草案以及CS25 J分部中均在进气系统防冰条款中对APU在降扬雪条件下的运行提出了要求。对于符合性方法,目前CAAC还未有相关指导文件,FAA和EASA则分别给出了一些详细要求,但两者还存在部分差异。本文对比了CCAR和FAR以及CS25 J分部中APU进气系统降扬雪条款内容差异,研究了FAA和EASA对于APU进气系统降扬雪气象条件详细验证要求,并从降雪强度、环境温度、扬雪条件、试验持续时间和试验工况等方面分析了FAA与EASA要求的差异。结果表明FAA和EASA在降雪强度、扬雪条件和试验工况要求方面基本一致,在环境温度和试验持续时间要求方面存在差异,总体上来看EASA对于降扬雪试验条件要求更为详细。根据研究结果,探讨了APU进气系统降扬雪适航验证方法,为民用飞机APU进气系统降扬雪气象条件下的验证工作提供参考。Draft appendix APU of FAR and CCAR and part J of CS25 all has the requirement for the operation of APU in falling and blowing snow condition.CAAC has not issue the guidance for the compliance method,while FAA and EASA has provided some detail requirements for the certification test,but there are some differences between them.This paper compares the differences between CCAR,FAR and CS25 part J about the falling and blowing snow airworthiness requirements for APU inlet system,and studies the detailed certification test requirements of FAA and EASA.Comparison has been made in snow intensity,environmental temperature,blowing snow,duration time and operation condition.The results show that FAA and EASA are almost same in snowfall intensity,blowing snow condition and test condition,but there are some differences in environmental temperature and test duration.Generally,EASA’s requirements for snowfall test conditions are more detailed.Based on this study,the method of compliance was discussed.This paper provides the guidance for compliance certification test of falling and blowing for APU inlet system.

关 键 词：辅助动力装置 APU 降扬雪 适航 符合性方法 

分 类 号：V228[航空宇航科学与技术—飞行器设计]