Disassembly Sequencing Flexibility – A Joint Cellular Disassembly Model

In this paper, we study disassembly sequencing flexibility that means the possibility of interchanging the order in which the required disassembly operations are performed. A mathematical model to design joint cellular disassembly systems is proposed, in which the trade-off of throughput time performances between the case of considering and the case of not considering disassembly sequencing flexibility be considered, starting from a pure belt conveyor line. Using this model we can obtain following insights when the exist disassembly conveyor line had been converted to other manufacturing system like cell production: (1) how many cells should be formatted; (2) how many workers should be assigned in each cell; (3) and how many workers should be rested in shortened conveyor line. To illustrate the proposed model, numerical simulation experiments based on the data collected from the previous documents are used to estimate the marginal impact each factor change had on the estimated performance improvement.