航空整体结构件侧壁滚压校正的有限元分析  

FEM Analysis of Deformation Correction by Side-wall Rolling of Aircraft Monolithic Components

作　　者：王中秋[1] 李剑峰[1] 孙杰[1] 李桂玉[1] 

机构地区：[1]山东大学,济南250061

出　　处：《中国机械工程》2009年第5期612-616,共5页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(50435020);国防科工委项目(A1420060196);高等学校博士学科点专项科研基金资助项目(20070422033)

摘　　要：分析了航空整体结构件加工变形产生的原因,建立了隔框类薄壁件侧壁滚压校正有限元仿真模型,通过侧壁滚压的仿真分析,对滚压过程中滚压应力与工件初始应力叠加、工件初始应力再分布及滚压对工件变形的影响进行了初步探讨。通过对不同滚压参数下工件弯曲变形校正结果的比较,获得了合理的滚压参数;通过对滚压前后工件滚压区与非滚压区应力变化结果的对比,获得了工件滚压校正局部应力再分布对变形影响的规律。The FEM model of side--wall rolling of aircraft monolithic component was established.The original residual stress redistribution and the pyramid of rolling stress on the original stress were analyzed based on the FEM analysis. The deformation of work piece was also analyzed according to the variation of original stress. By comparing different rolling parameters in rolling, the original stress redistribution trends and deformation trends were got. According to the results, the best deformation correction parameters can be obtained for real process applications.

关 键 词：滚压 有限元分析 整体结构件 变形校正 应力调整 

分 类 号：TG335[金属学及工艺—金属压力加工]