刘文斌.民用飞机着陆载荷第25.473条款要求及符合性验证研究[J].民用飞机设计与研 究,2020(2):34-38LIU Wenbin.[J].Civil Aircraft Design and Research,2020,(2):34-38.
民用飞机着陆载荷第25.473条款要求及符合性验证研究
  
DOI:10.19416/j.cnki.1674-9804.2020.02.008
中文关键词:适航  符合性方法  地面载荷  着陆  起落架
英文关键词:airworthiness  method of compliance (MOC)  ground loads  landing  landing gear
基金项目:
作者单位
刘文斌 上海飞机设计研究院上海 201210 
中文摘要:《中国民用航空规章第25部:运输类飞机适航标准》(CCAR-25)第25.473条,对民用飞机地面载荷的着陆情况计算进行了规定。对其具体内容和符合性验证方法进行研究,包括条款与其它相关条款的约束关系、可接受的符合性方法,以及着陆载荷计算涉及的着陆重量、下沉速度、着陆姿态等所有工况和工况参数的确定方法,还有起落架动态特性、轮胎摩擦系数的符合方法研究等,为民用飞机着陆地面载荷的设计和符合性验证提供参考。
英文摘要:It is required by item 25.473 in CCAR-25 that the civil airplane landing loads design shall meet a series of requirements and assumptions. This paper has studied its content and corresponding verification method, including relations with other airworthiness requirements, acceptable verification methods, and how to select the important calculation input data, such as landing weight, drop velocity, landing attitude and loads cases, landing gear dynamic properties and friction factor. The results will contribute to the design and compliance activities for transport category airplanes landing loads.
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