关键词: 等强度梁, 轻量化, 多截面独立并行优化, 二次开发

Abstract: The optimal design method of equal-strength beam is one of the key technologies of automotive lightweight and performance design. The development of multi-section independent parallel optimization algorithm of equal-strength beam is of great significance for efficient lightweight design of chassis components.Based on the secondary development platform of Abaqus software, a new independent parallel optimization algorithm for multi-cross-section of equal-strength beam is develop by combining the theoretical model with the finite element simulation. The algorithm theoretically has a full stress optimization design of each section of the beam, and constructed the equal strength beam structure by continuous iterative modification of the theoretical mechanical model through the finite element simulation.The development of multi-cross-section independent parallel optimization algorithms develop in the lightweight design of the axle housing. The results show that the axle housing is reduced by 10.41%, and the maximum stress is reduced by 10.64%. Later, the algorithm is optimized to study the cross-section shape containing variables, which prove that the independent parallel optimization algorithm for multi-cross-section built has a good robustness and stability, which can be applied to the intensity beam optimization research of any cross-section shape.