Using work factor method for operational models of disassembly and reassembly evaluation

Abstract

The purpose of this paper is to study the disassembly task time in the maintenance and recycling context, knowing that only the reassembly task is needed in repairing operation. Dis/reassembly activities are delicate and need precise intervention due to the obligation of equipment refunctioning constraints. Time spent for dis/reassembling faulty components should be well-deducted and standardized. It is not always the case due to the various variant disassembly metrics and contexts. The Work Factor Method during dis/reassembly activities helps to develop the operational dis/reassembly time models. Two model cases have been proposed. The first model presents a function of n components with the same characteristics that multiply the corresponding time for a component in the context where the tool used is the robot, while the second model meets the conditions of manual disassembly where the proposed function estimates the time of disassembly and reassembly according to the coefficients of performance of technician. These models contribute to defining effective time as far as operational dis/reassembly activity is concerned and can help to optimize maintenance and recycling task planning.