关键词: 矩形截面钢管节点, 拓扑优化, 3D打印

Abstract:

In order to achieve the purpose of weight reduction and Structure optimization of space joint. The rectangular steel tubular joint is studied as an example in this paper, based on the finite element analysis of the traditional rectangular steel tubular joints and according to the law of the stress distribution and failure mode of the joints,under the optimization topology methods, sets minimal mass of the joints as the target to obtain the final design under the condition of ensuring the sufficient strength and rigidity of the joints structure. The results of weight-reducing design show that the total weight is reduced by 38.9%.3D printing process technology is also implemented in order to realize the manufacture of complex components which cannot be produced with traditional manufacturing methods.

Key words: rectangular steel tubular joints, topology optimization, 3D printin