An approach to evaluating product assembly precision considering the effect of joint surface deformation

作者：Lu, Cong^*; Wang, Song-Ling

来源：Proceedings of the Institution of Mechanical Engineers - Part C: Journal of Mechanical Engineering Science , 2014, 228(14): 2604-2617.

DOI：10.1177/0954406213519758

• Assembly variation
• variation propagation
• assembly precision
• joint surface deformation
• assembly sequence

This paper proposes an approach to evaluating the product assembly precision in different assembly sequences, considering the effect of joint surface deformation. Three assembly variation sources, including manufacturing variation, assembly clearance and joint surface deformation, which have effect on the final assembly precision are analyzed. Based on finite element analysis, a hybrid genetic algorithm and back-propagation neural network model is built to predict the assembly variations, which are caused by the joint surface deformation under different assembly conditions and different parameters of the joint surface. An assembly variation propagation model is built, and a product assembly precision evaluation approach is proposed to identify the feasible assembly sequences, and the optimal assembly sequence considering the effect of the joint surface deformation. Finally, a case study is given to verify the proposed approach.

• 出版日期2014-10
• 单位电子科技大学