New optimal method for complicated assembly curves fitting

作者：Luo, L^*; Lin, Z; Lai, X

来源：International Journal of Advanced Manufacturing Technology, 2003, 21(10-11): 896-901.

DOI：10.1007/s00170-002-1412-1

• "body-in-white" assembly
• optimisation fitting

The optimisation fitting problems between two 3D parts with complicated profiles are the key focus in the problem of 'body-in-white' (BIW) assembly for cars, which causes many assembly fitting issues. The paper present a novel algorithm based on a genetic algorithm (GA) to solve such assembly problems and treats it as a two-space curves-fitting problem. The analytical model of the global optimal fitting position of two space curves is discussed, and the mathematical optimal functions for 2D and 3D curves are set up separately. The global research procedure based on the genetic algorithm is described in detail, and some improved ways for GA in constrained optimisation are also discussed in the paper.

• 出版日期2003-7
• 单位上海交通大学