Research on Dimension Parameter and Constraint Relations of Variant Product Based on Assembly Connection

In product configuration of mass customization, sometimes it´s necessary to modify some dimensions of product modules, how to ravel the affection relation of modules´ dimension is the key of precision and efficiency of product configuration. In order to research parameter transfer path and build the parameter transfer method, variant parameters is classified and parameter association relations between parts are analyzed based on assembly connection in product. Parameter constraint relations also presented for variant design. Finally, parameter transfer model is put forward.