Study On Simulation And Optimization For Production Line Of Vehicle Maintenance And Workshop Modeling

With the continuous growth of China’s car ownership, the significance of vehiclemaintenance for vehicles is increasingly important. However, there are problems of poorquality of maintenance and low efficiency of operation widespread in many vehiclemaintenance companies. This is due to the lack of reasonable design of vehicle maintenanceproduction line, which has led to the unbalance problems of the production line. How toimprove the quality of maintenance and the efficiency of operation, is a practical issue relatedto the economic benefit and long-term development of the vehicle maintenance company, andis also the research emphasis of the dissertation.The dissertation firstly discusses the definition and classification of the production line,and then introduces the classification and operating range of vehicle maintenance. Based onthe summary of design approach of the vehicle maintenance production line, the dissertationhas established preliminary designs of the elementary maintenance and the completemaintenance. And then, the dissertation researches the unbalance problem of the vehiclemaintenance production line and the usual solutions of the problem, which has laid theoreticalfoundations for the later simulation for vehicle maintenance production line.Vehicle maintenance production line system is regarded as a discrete event system.Discrete event system is the system which states will only change at event occurrence isolatedtime points. The simulation technology used on research of discrete event system canaccurately simulate systems’ operation characteristics and can also reduce the time and cost,which is a safe, reliable, efficient and widely used method. The dissertation first investigatesthe operation time and environment of vehicle maintenance, and then uses Flexsim toestablish a simulation model of the vehicle maintenance production line. Flexsim is powerfuland easy-to-use simulation software with excellent3D modeling capabilities andobject-oriented technology. In order to research the interactions between the production lineand the production environment, the dissertation does secondary development of the repairshop and has found unbalance problems of the production line. Rearrange the stations andoperations of the production line and simulate it based on Flexsim again.The result of the simulation shows that the balance adjustment greatly improves the operation efficiency of the vehicle maintenance production line. The methods adopted andresults of this dissertation provide useful explorations of researches on the design and theoptimization of the production line and secondary development of the repair shop based oncomputer simulation technologies.