Leader-follower identification of complex product redesign modules for multi-domain collaboration

A multi-domain collaborative evaluation method including cognitive domain, demand domain and module domain was constructed, in order to effectively identify the master-slave relationship of each module in complex product redesign under the condition of multi-agent participation and multi-demand coexistence, and to improve the efficiency of redesign. The design requirements domain was established based on the emotional and physical needs of different cognitive subjects in the cognitive domain. Combined with the fuzzy evaluation and the relative preference analysis, the inter-domain mapping importance of each module for the requirement domain mapping was obtained. Considered the connection relationship among modules, a fuzzy design structure matrix combined with DEMATEL was proposed to obtain the intra-domain correlation importance of each module. Using the cooperative game method, a comprehensive evaluation model was established, which combined the inter-domain mapping importance and the intra-domain correlation importance to identify the master-slave relationship of each module. Compared with the module importance analysis mode from a single perspective, the method obtained more objective, comprehensive and accurate evaluation results. Taking the CKA6180 CNC machine tool as an example, the effectiveness and feasibility of the multi-domain collaborative evaluation method were verified. © 2022 Zhejiang University. All rights reserved.