Entropy minimization in design for maintenance, re-manufacturing, re-using

This paper uses non linear optimisation to find a low cost disassembly sequence for assemblies. The stated contribution is an approach to determining a sequence that has the minimal number of components to disassemble and the minimal number of irreversible and reorientation operations. It is possible to show objectives, requirements and first solutions for integrated assembly and disassembly for maintenance, re-manufacturing and re-using products. The entropy evaluation brings about the generation of a disassembly sequence in which the number of separation times is small, the stability is big, the number of re-orientations is small and the operation reversibility is big. The algorithms are presented in order to determine the best disassembly sequence for a subassembly and a system life-cycle model for disassembly-assembly design