| With the speeding up of the market economy of China， the market competition isbecoming increasingly fierce. In such situation, manufacturing the high efficiency of thesystem has become the key to enterprise survival. To optimize the accurate evaluation andeffective for manufacturing system is an important measure to ensure the system efficiency.The3000series diesel engine as a typical power system of ship power, oil drilling and otherfields, the assembly system is the effective points of large diesel engine enterprise concern,The assembly system accuracy assessment and improve the optimization is the focus of thework of enterprises. Therefore, this paper selects the assembly system of3000series dieselengine as the research object. By modeling and simulation analysis and evaluation of theassembly system, find out the existing problems and improvement and optimization.In this paper, the assembly line3012diesel engine as the research object, the processknowledge as the basis for the assembly of the assembly line, the basic theory of top-down,bottom-up method, hierarchical structure, built a complete reflection of the three Petri netmodel of the actual assembly process logic and operation characteristics, Are Petri net flowmodel, based on the operation system Petri net model and the overall refinement model basedon Petri net, and using the analysis method of judging the model activity and accessibility.Then through the analysis and comparison of all kinds of simulation software, simulationmodel is built by mapping and Petri network using Arena simulation software, and thevalidity of the model was determined, finally the simulation results are analyzed, pointing outthe actual assembly system problems and bottlenecks, And to optimize the assembly systembuffer capacity as the goal, serious problems on the part of the workstation queue is optimized,effectively solves the problems, improve resource utilization rate, shorten the waiting time ofthe entity. |
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