Fuzzy reasoning Petri nets and its application to disassembly sequence decision-making for the end-of-life product recycling and remanufacturing

Abstract

With growing interest in recovering materials and subassemblies within consumer products at the end of their useful life, there has been an increasing interest in developing decision-making methodologies that determine how to maximise the environmental benefits of end-of-life (EOL) processing while minimising costs under variable EOL situations. In order to predigest the analysis difficulty of disassembly path in deciding on the disassembly sequence of products, a decision-making model of product disassembly sequence with fuzzy reasoning Petri nets is proposed. Combined with the matrix operation, a formalisation reasoning algorithm is adopted to calculate the disassembly sequences. The result shows that the model of decision-making has strong parallel operation ability in the disassembly process sequence, and can make intelligent decisions based on the product information from each disassembly step. It also can realise the automatic clustering identification and decrease the complexity of product disassembly.

Keywords:

• disassembly process planning
• fuzzy reasoning algorithm
• recycling
• remanufacturing
• Petri nets

Acknowledgements

The authors would like to thank the anonymous reviewers and the editor for their valuable comments and the Special Fund for Basic Scientific Research of Central Colleges, Chang'an University (CHD2011SY007) and the Special Fund of Chongqing Education Commission (KJ120415) for their sponsorship.