Optimization design and simulation of assembly line for aircraft’s door

Abstract Aiming at the problems of uneven production schedule and low production efficiency in the assembly process of aircraft doors of a civil aircraft company, the original aircraft door assembly line was modeled and simulated in FlexSim to analyze the reasons for the above problems. Depending on the assembly process and process constraints, blockage can be mitigated by adding or removing operators, merging stations, and introducing automated equipment. Due to the large footprint of automation equipment, and the lack of buffer area, the existing production line layout is insufficient to meet the requirements. Therefore, based on the system layout planning (SLP) method, all the stations in the assembly line are divided according to the operation unit, and the position of each operation unit is arranged according to the logistics intensity relationship to obtain the new workshop layout. Finally, the effectiveness of the automated SLP layout scheme is verified in FlexSim, and the capacity of the optimized aircraft door assembly line is significantly increased by simulating and comparing the original assembly line and the optimized assembly line, which provides support for further research on the aircraft door assembly line.