飞机机身壁板上小开口的设计方法探讨

D esign of the Sm all-Size Cutout Structure on the Panel of Aircraft's Fuselage

民用飞机的设计技术已经越来越重要。飞机结构工程师会根据飞机结构及功能的需要在飞机机身壁板上设计很多小开口结构,这种小开口结构设计的质量对飞机力学性能和重量等方面都有直接的影响,所以小开口结构的设计已成为飞机设计过程中的重要组成部分,一个成功的机型必须要有优秀的小开口设计。结合某型飞机的结构设计过程,详细分析和探讨了机身小开口结构的设计过程,具体包括载荷分析、相关零部件设计、密封及表面防护设计等方面的内容。

The design technology for civil aircraft has already become more and more important. Because of the need for aircraft＇s structure and function,the aircraft structure engineers can design many small-size cutout structures on the skin panel of aircraft＇s fuselage. The quality of such small-size cutout structures can directly affect physical mechanical performance and weight for the airplane,etc. The design of small-size cutout structure is an important part of the aircraft＇s design process,and a successful aircraft must have an excellent design of the smallsize cutout structure. Based on a certain type of aircraft,the design procedure of the fuselage small-size cutout structure has been analyzed and discussed detailedly in this article. Load analysis,design of relevant components,seals and surface protection,etc are also studied concretely in this paper.