An integrated approach to disassembly planning and demanufacturing operation

This paper presents a disassembly planning and demanufacturing scheduling method for an integrated flexible demanufacturing system (IFDS). Workstation Petri net (WPN) and product Petri net (PPN) are proposed for hierarchical and modular modeling in order to derive the optimal disassembly path with the maximal end-of-life (EOL) value. Resource Petri net (RPN) is introduced to deal with the demanufacturing facilities. The proposed methodology and algorithms are demonstrated through the disassembly of personal computers in IFDS.