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针对航空整体结构件变形复杂、校正效果难以定量预测的工程问题,基于有限元仿真分析,研究了航空整体结构件压弯过程中的压力-挠度-残余变形之间的回弹变化关系.基于该关系对航空整体结构件变形校正进行了有限元建模、校正过程有限元数值分析,从而证明可以通过压力-挠度-残余变形之间的变化关系合理的确定校正过程中需要的校正参数,并且可以通过该关系预估校正中的极限安全载荷.
Aiming at the engineering problems that the overall structural parts of the aviation are complicatedly deformed and the correction effect is difficult to predict quantitatively, based on the finite element simulation analysis, the relationship between the springback of pressure-deflection and residual deformation during the bending process is studied.Based on this Relationship between the deformation of the aviation structural deformation of the finite element modeling and calibration process of finite element numerical analysis, which proves that the relationship between the pressure - deflection - residual deformation can be reasonable to determine the calibration process required calibration parameters, and can This relationship is used to predict the ultimate safety load in the calibration.