某飞机机翼Ⅰ大梁腹板战伤修理研究  

Battle Damage Repair Research to the Venter Board of I Beam on a Airplane

作　　者：缑百勇[1] 李寿安[1] 李曙林[1] 

机构地区：[1]空军工程大学工程学院飞机发动机工程系,陕西西安710038

出　　处：《航空计算技术》2004年第3期90-92,96,共4页Aeronautical Computing Technique

摘　　要：某架大型轰炸机的机翼Ⅰ大梁腹板被弹片损伤,使飞机不能执行任务。本文从机翼Ⅰ大梁腹板的受力情况出发,通过对损伤处的应力集中情况进行分析,采用止裂加强法对弹片损伤进行修理,使损伤处的最大集中应力由657.6MPa降低到339.4MPa,在腹板的许可强度范围以内,从而修理后的飞机完全满足任务执行的载荷要求。The venter board of I beam on a bomber was damaged by a shrapnel , it made the bomber not carry out missions . The paper analyzes the stress concentration of damage region according to the forces that the venter board of I beam bears , and presents a method of preventing damage from expanding and strengthening the board to repair the battle damage . The max concentrating stress is decreased from 657.6MPa to 339.4 MPa that is in the limit of permissive stress . The bomber can satisfy completely the load requirement of task .

关 键 词：弹片损伤 战伤修理 加强 

分 类 号：V267.45[航空宇航科学与技术—航空宇航制造工程]