波音与空客在典型铰链损伤容限设计的差异性研究  

Analysis on the Difference between Boeing and Airbus in the Damage Tolerance of Typical Hinges

作　　者：刘莹飞 冯成慧 王乾平 李云鹏 Liu Yingfei;Feng Chenghui;Wang Qianping;Li Yunpeng(AVIC 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》2023年第7期51-56,共6页Aeronautical Science & Technology

摘　　要：飞机舵面铰链结构在飞行姿态控制和可靠性方面有重要作用,但在其损伤容限设计方面缺乏系统性的指导。运输类飞机适航规章25.571条款中对损伤容限设计所做出的顶层要求,是现代民用飞机结构设计必须遵循的规范。本文介绍了波音和空客不同的技术途径典型铰链机构,分析了缓慢裂纹扩展结构和多传力破损安全结构的技术特点。研究结果表明,多传力路径的破损安全结构能显著降低铰链单点失效概率,同时提出从翼面高度和气动载荷方面进行典型铰链的损伤容限设计。The aircraft rudder hinge structure plays a pivotal role in flight attitude control and reliability,and there is a lack of systematic guidance on its damage tolerance design.According to CCAR 25.571,the top-level requirements for damage tolerance design are conducted,and it is necessary for modern civil aircraft structure to follow the norms.It introduces the typical hinge mechanisms from Boeing and Airbus with different technical pathways,and analyzes the technical characteristics of slow crack propagation structure and multi-force damage safety structure.Through the research,it is concluded that the damage safety structure of the multi-path load tranfer can significantly reduce the probability of single-point failure of the hinge,and the damage tolerance design of the typical hinge is proposed from the aspects of rudder height and aerodynamic load.

关 键 词：铰链 损伤容限 波音 空客 差异 

分 类 号：V267[航空宇航科学与技术—航空宇航制造工程]