A method on multiple objective balancing of U-type assembly line

The U-type assembly line is currently the focus research in production enterprises. However, the traditional assembly line balancing mostly optimizes the single objective ignoring the relationships between each other. Therefore, through the transformation of assembly sequence, a multiple objective mathematical model of the U-type assembly line is established based on the present analysis of enterprise assembly line process by maximizing the balance efficiency, optimizing the workstation load and increasing capacity. Then, the mathematical model is solved by lingo software to find the global optimal solution. In a practical application, we selected five different workstations in the Lingo software platform, calculated the loading effect of balance, and then compared U-type to straight assembly line to verify the feasibility and effectiveness of the proposed models and method in this research.