Abstract: Aiming at the problem of long cycle and high cost of complex product design, a module division method considering part reuse is proposed. Firstly, the three correlation attributes of function, physics and reusability of complex product parts are analyzed, and a comprehensive correlation matrix between parts is constructed. Combined with complex network theory, it is mapped into the relationship network model between parts. Then, an improved Louvain community discovery algorithm is proposed, which solves the problem of too many small communities by selecting seed nodes and realizes the division of complex product modules. Finally, the chip removal machine is taken as an example to divide the module, and compared with the division scheme obtained by Louvain community discovery algorithm and spectral clustering algorithm, the effectiveness and feasibility of the proposed method are verified.

Key words: complex products, parts reuse, improved Louvain community discovery algorithm, module division