航空薄壁件多工序连续工艺链式仿真方法研究
Research on Chain Simulation Method for Multi Process Continuous Process of Aerospace Thin-Walled Parts
摘要: 本文以2219铝合金燃料贮箱底为例，研究基于ABAQUS的航空薄壁件多工序连续工艺链式仿真方法。介绍了贮箱底的加工工序，包括充液拉深、去应力退火和镜像铣削等。阐述了不同工序间数据传递方法，通过读取.odb文件实现变形体、应力和温度场等数据传递。详细描述了各工序的仿真过程及方法，如充液拉深的有限元模型建立，去应力退火的顺序耦合方法，镜像铣削的“动态载荷 + 生死单元”技术及铣削力方向变换方法。经实验验证，采用相关设备进行各工序加工，对测试点残余应力检测并与仿真结果对比，虽存在偏差但大体趋势相同，证明该仿真方法具有可行性和可靠性，对航空薄壁件加工有指导意义，同时指出未来研究方向。
Abstract: This article takes the bottom of 2219 aluminum alloy fuel storage tank as an example to study the ABAQUS based multi process continuous process chain simulation method for aviation thin-walled parts. Introduced the processing procedures for the bottom of the storage tank, including liquid filled deep drawing, stress relief annealing, and mirror milling. Explained the data transfer methods between different processes, and achieved data transfer of deformation bodies, stress and temperature fields by reading .odb files. The simulation process and methods of each process were described in detail, such as the establishment of a finite element model for liquid filled deep drawing, the sequential coupling method for stress relief annealing, the “dynamic load + birth and death element” technique for mirror milling, and the method for changing the direction of milling force. Through experimental verification, it has been found that using relevant equipment for various processing steps, residual stress detection at test points, and comparison with simulation results have shown that although there are deviations, the general trend is the same. This proves that the simulation method is feasible and reliable, and has guiding significance for the processing of thin-walled aerospace parts. At the same time, future research directions are pointed out.
文章引用：孙宁. 航空薄壁件多工序连续工艺链式仿真方法研究[J]. 建模与仿真, 2025, 14(1): 1344-1358. https://doi.org/10.12677/mos.2025.141121

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