Expert Enhanced Coloured Stochastic Petri Net and its application in assembly/disassembly |
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| Authors: | S Kumar R Kumar R Shankar M K Tiwari |
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| Affiliation: | 1. Department of Manufacturing Engineering , National Institute of Foundry and Forge Technology , Ranchi, India , 834003;2. Department of Management Studies , Indian Institute of Technology Delhi , New Delhi, India , 110016 |
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| Abstract: | This article comprises of an Expert Enhanced Coloured Stochastic Petri Net (rule base system, or RBS) for modelling and analysing assembly/disassembly systems. RBSs are an Enhanced High-level Petri net extended with Close-World-Assumption (CWA). Traditional Petri nets can be used to model RBSs containing explicitly described knowledge. The main focus was is to facilitate and analyse the process planning activities of assembly/disassembly. The advantages of the new modelling approach were: (1) consideration of the non-desirable events, (2) occurrence of assembly/disassembly tasks with regard to colour of the tokens and utilization of probability concept to determine feasible steps, (3) establishing a relationship among components by means of arc labels, and (4) deeper insight into the assembly/disassembly process using high- and low-level petri nets. |
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