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The design of systems requires the integration of data from different fields (mechanical computer-aided design, electrical computer-aided design, automation, embedded software,.). The multi-technological character of Mechatronics makes the design of systems more complex. In this context a general knowledge of Mechatronics and Mechatronic products is necessary. The design problem of a mechatronic product requires the analysis of its structural, technological, and functional complexity. This paper presents an approach to the design of Mechatronic systems. This requires the characterization of the different types of the complexity of a product before presenting the design methodology, the modeling, and the simulation tools used in the different design phases.

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. These models contribute to defining effective Time as far as operational dis/re-assembly activity is concerned and can help to optimize maintenance and recycling task planning.

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