To solve the problem that the static service bill of material (service BOM
SBOM) cannot reflect the service process of dynamic maintenance
repair and overhaul (Maintenance
Repair and Overhaul
MRO) in real time
a SBOM evolution model in the product service life cycle for different management and service requirements in the dynamic MRO business is designed. By analyzing the difference of SBOM structure under the three management requirements of batch product
single product and single MRO service
from the perspective of assembly location
supplier and MRO tasks
the nodes and constraints of SBOM are classified and defined
and the evolution relationship model of different types of SBOM is established. Based on the influence of MRO service requirements on the changes of general SBOM and instance SBOM nodes
two types of SBOM changes in the dynamic service process and the node states under each type of changes are described
and the dynamic evolution model of SBOM changing with time is constructed. Finally
a locomotive bogie is taken as an example to prove the feasibility of the evolutionary model
and two MRO service traceability mechanisms are proposed according to the node traceability purpose
which greatly improves the management and traceability ability of dynamic data information in locomotive MRO service.