Research on engineering change of carbody assembly based on ECBOM

In order to solve the problem that information exchange and sharing are difficult in carbody design and manufacturing process, based on analyzing the information of carbody welding and assembly, a unified data source model is established, which is mainly by unifying bill of material (BOM) data and supports the whole course of carbody design, process planning and manufacturing. On the basis of such information integration and data consistency, an engineering change method based on engineering change bill of material (ECBOM) is presented, makes information communication with respect to carbody engineering change in broader range of carbody product lifecycle, therefore, increases efficiency, decreases labor intensity and error proneness.