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力学与实践 ›› 2008, Vol. 30 ›› Issue (1): 44-46.doi: 10.6052/1000-0992-2007-258

• 应用研究 • 上一篇    下一篇

某飞机机翼整体壁板损伤修理的有限元分析

李艳   

  1. 空军第一航空学院
  • 收稿日期:2007-06-11 修回日期:2007-08-29 出版日期:2008-02-08 发布日期:2008-02-08

DAMAGE REPAIR ANALYSIS FOR INTEGRAL WING PANEL OF AN AIRCRAFT

  • Received:2007-06-11 Revised:2007-08-29 Online:2008-02-08 Published:2008-02-08

摘要: 在全机有限元模型的基础上对机翼2-3墙间上壁板 某处150\,mm裂纹型损伤进行修理前后的强度评估. 给出了受损壁板修理后铆钉排数与残余过 载的定量关系;比较了长桁受损后是否修理对飞机结构承载能力的影响. 结论为战伤飞机快 速评定提供了科学依据,也为飞机平时修理提供参考.

Abstract: On the basis of the finite element model of a whole aircraft, the paper simulates a crack with a length of 150mm in a place between No.2 and No.3 walls of the upper wing panel before and after it is repaired. The results give a quantitative relationship between rivet rows and residual load factor, and the influences of the damaged stringer, before and after it is repaired, on the force-bearing ability of aircraft structure are compared. The results can be used in a rapid assessment of a battle-damaged aircraft repair and as a reference for the usual repair of aircraft.