Research On Resource Allocation Optimization Of Complex Product Assembly Line

The assembly and manufacture of large and complex products such as airplanes,ships,and automobiles are of great significance for enhancing the country's overall industrial level,promoting scientific and technological progress,and driving industrial upgrading.Complex product assembly has a decisive impact on the quality,cost and delivery time of the final product.The assembly process generally has the characteristics of many manual installation links,limited working space and long operation cycle.Problems such as low resource utilization rate and many downtimes are widespread.With changes in the manufacturing capacity and demand structure of the manufacturing industry,complex products have changed from the traditional single-variety,large-batch production model to a multi-variety,variable-batch production model.Due to the long-term characteristics of long production cycle and low resource utilization rate in the assembly and manufacturing process of my country's complex products,it is difficult to meet the market's changing capacity requirements.To this end,this thesis studies the optimization of resource allocation of complex product assembly lines to enhance the rapid response capacity of complex product assembly lines to market demand for changing production capacity.The main research work of this article is as follows:(1)Combining the research status of assembly line balance problems and multi-objective optimization problems at home and abroad,this thesis analyzes the difficult problems in the process of resource allocation of complex product assembly lines,and explains the resource allocation optimization method of complex product assembly lines from a process perspective.Construct a mathematical model for the optimization of resource allocation in the assembly line,and further study its solution method.(2)Aiming at the problem of resource allocation optimization of complex product assembly lines,a solution framework based on the multi-objective optimization algorithm NSGA-? was established:under the condition of considering the assembly sequence constraints,with the minimum assembly line cycle time and the minimum total resources as the optimization goals,Construct a multi-objective optimization mathematical model,and use the NSGA-? algorithm to solve the mathematical model.(3)After fully investigating the assembly workshop of an aircraft company,according to the actual aircraft assembly process data,simplify the complex constraints in the actual assembly process,rewrite the aircraft assembly process data,and use this as the test data to verify this article using the NSGA-? algorithm The proposed resource allocation optimization method.The verification results show that after optimization and before optimization,the total resources are reduced by 12.24%,the assembly line balance rate is increased by 7%,and the assembly line smoothness index is reduced by 65.02%at the same beat.Through analysis and test verification,it is proved that the resource allocation optimization method proposed in this thesis can effectively reduce the resource consumption of complex product assembly lines and improve assembly efficiency.