Advanced Disassembly Planning: Flexible, Price-Quantity by Christian Ullerich

By Christian Ullerich

​Disassembly is likely one of the key parts of any processing of recovered items. Be it for fix, remanufacturing, refurbishing, cannibalisation, fabric recycling, or disposal. for this reason, making plans the disassembly is critical and―with growing to be quantities of recovered items and want for saving resources―becomes much more very important. The disassembly making plans ways offered are according to mathematical programming. With this technique, a profit-optimal making plans of amounts of a number of forms of recovered items in addition to components distribution, fabric recycling, and disposal amounts is realised. Thereby,typical facets, like fabric purity standards, the situation of the recovered items, detrimental components, and skill boundaries, also are thought of. a brand new process is the provided blend of disassembly-to-order making plans and disassembly sequencing, often known as versatile Disassembly making plans.

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Advanced Disassembly Planning: Flexible, Price-Quantity Dependent, and Multi-Period Planning Approaches

​Disassembly is among the key components of any processing of recovered items. Be it for fix, remanufacturing, refurbishing, cannibalisation, fabric recycling, or disposal. therefore, making plans the disassembly is critical and―with transforming into quantities of recovered items and wish for saving resources―becomes much more very important.

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Extra resources for Advanced Disassembly Planning: Flexible, Price-Quantity Dependent, and Multi-Period Planning Approaches

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There exists a strong impact from both flow directions on the capacities for storage, transportation, etc. Thus, a simultaneous consideration is favourable, if not necessary for an optimal planning. 12 Thereby, the system is only a closed loop when the product returns to the original producer. 13 Note that not only end-of-life products cause a reverse flow. Also product recalls, service and warranty returns, even rework, etc. , the network design. 15 The common options are:16 • (direct) reuse, • repair, 8 Cf.

The necessary steps of determining the required disassembly states and the assignment of a particular unit of a core to a proper disassembly state and the best usage options are developed in Sect. 4. As becomes evident in Sect. 2, the problem of the flexible disassembly planning, considering core conditions and the three usage options (reuse, recycling, and disposal), leads to a large sized model. This is usually linked with a relatively long solution time. In Sect. 5 four possibilities of speeding up the solving are presented.

7 But even though an optimal design is found for all phases of the life cycle, the design does not have to be optimal at the end of life of the product. This problem might occur because of changing needs for material or parts for recycling or reuse, respectively, changes in legislation, too little estimated abrasion of items, etc. Hence, the longer the life cycle the greater is the danger of a suboptimal design. Note that long life cycles are positive in terms of an environmental conscious manufacturing and product recovery.

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