A generalized stochastic Petri-net model for performance analysis and allocation optimization of a particular repair system. (English) Zbl 1262.90049
Summary: We present a generalized stochastic Petri-net model for performance analysis and allocation optimization of a repair system with interchangeable inventory. A repair system with interchangeable-inventory is an important type of repair-service, which features components that are assembled circularly with interchangeable-component inventory. Despite improved efficiency, major difficulties in model formulation and performance analysis arise due to a complex fork/join structure and the presence of interchangeable-component inventory. In this study, by applying a generalized stochastic Petri-net to model the fork/join structure and interchangeable inventory, a system with one overhaul center and one interchangeable-component repair shop was defined in the Petri-net by places, transitions and tokens. A performance analysis with single and multiple parameters and simulation experiments was performed according to the real field data of high-speed railway locomotives overhaul. With appropriate weights on each portion of the system resources, the optimal design scenario for the allocation of a specific repair system was achieved to control the overall expenditure.
MSC:
| 90B25 | Reliability, availability, maintenance, inspection in operations research |
| 90B22 | Queues and service in operations research |
| 90B05 | Inventory, storage, reservoirs |
| 90C59 | Approximation methods and heuristics in mathematical programming |
Keywords:
repair system with interchangeable inventory; generalized stochastic Petri-net; fork/join queue; performance analysis; allocation optimizationReferences:
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