Shipbuilding industries have been struggling to reduce production time and cost of their products in many aspects. Manufacturing systems have been changed, new production lines and robots have been installed, and new planning and scheduling systems have been adopted in order to achieve shorter time-...
Shipbuilding industries have been struggling to reduce production time and cost of their products in many aspects. Manufacturing systems have been changed, new production lines and robots have been installed, and new planning and scheduling systems have been adopted in order to achieve shorter time-to-market and higher productivity. Simulation based manufacturing, digital manufacturing, or virtual manufacturing simulation, whatever the name means, is an approach to achieve such a goal. In order to improve productivity in a shipbuilding process at a shipyard, a virtual manufacturing simulation development has been driven. This paper proposes a modeling and simulation process of a panel-block assembly line in a shipyard. The panel-block assembly line is an assembly process to produce a main panel of a flat block and a curved block. In this paper, its activity analysis is carried out using expression of IDEF0(Integration DEFinition 0), and its process is qualitatively and quantitatively analyzed and modeled by Petri nets. A commercial discrete event simulation tool, QUEST?, is used for virtual panel-block assembly line and simulation. The modeling results by Petri nets are mapped to elements of the simulation tool. Finally, an integrated simulation environment of panel-block assembly line is implemented in order to efficiently utilize the virtual panel-block assembly line model. With the help of IDEF0 and Petri nets, we could systematically analyze and describe the panel-block assembly line process that are characterized as being concurrent, asynchronous, distributed, parallel, nondeterministic, and/or stochastic. Also, the dynamic and concurrent activities of a panel-block assembly line system were able to be simulated. A timing concept can be included into the Petri nets model to evaluate performance and dependability issues of the system. Existing simulation implementation methodology that uses IDEF0 is not efficient in analying the dynamic acvitity of manufacturing process and completes simulation model after repeated trial and error. Such being the case, this paper suggested process model which uses Petri nets with function model which uses IDEF0 method of production line for implementation of simulation model. Systematic analysis and modeling methodology for implementation of simulation model suggested in this paper plays an important role in deciding various parameters of simulation model qualitatively and quantitatively. Also, suggested methodology plays a key part in deciding the main factors and valuation basis of model.
Shipbuilding industries have been struggling to reduce production time and cost of their products in many aspects. Manufacturing systems have been changed, new production lines and robots have been installed, and new planning and scheduling systems have been adopted in order to achieve shorter time-to-market and higher productivity. Simulation based manufacturing, digital manufacturing, or virtual manufacturing simulation, whatever the name means, is an approach to achieve such a goal. In order to improve productivity in a shipbuilding process at a shipyard, a virtual manufacturing simulation development has been driven. This paper proposes a modeling and simulation process of a panel-block assembly line in a shipyard. The panel-block assembly line is an assembly process to produce a main panel of a flat block and a curved block. In this paper, its activity analysis is carried out using expression of IDEF0(Integration DEFinition 0), and its process is qualitatively and quantitatively analyzed and modeled by Petri nets. A commercial discrete event simulation tool, QUEST?, is used for virtual panel-block assembly line and simulation. The modeling results by Petri nets are mapped to elements of the simulation tool. Finally, an integrated simulation environment of panel-block assembly line is implemented in order to efficiently utilize the virtual panel-block assembly line model. With the help of IDEF0 and Petri nets, we could systematically analyze and describe the panel-block assembly line process that are characterized as being concurrent, asynchronous, distributed, parallel, nondeterministic, and/or stochastic. Also, the dynamic and concurrent activities of a panel-block assembly line system were able to be simulated. A timing concept can be included into the Petri nets model to evaluate performance and dependability issues of the system. Existing simulation implementation methodology that uses IDEF0 is not efficient in analying the dynamic acvitity of manufacturing process and completes simulation model after repeated trial and error. Such being the case, this paper suggested process model which uses Petri nets with function model which uses IDEF0 method of production line for implementation of simulation model. Systematic analysis and modeling methodology for implementation of simulation model suggested in this paper plays an important role in deciding various parameters of simulation model qualitatively and quantitatively. Also, suggested methodology plays a key part in deciding the main factors and valuation basis of model.
주제어
#Petri Net Simulation Based Manufacturing IDEF0 Panel Production Line
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