CSP-based Study on Distributed PDM and Consistency Control Technique for Aero-Subcontract Production

The distributed product data management (DPDM) is the key effectively of the remote collaborative designing and manufacturing for complex product. A study project on DPDM and consistency control techniques based on collaborative service platform (CSP) in aero subcontract production (aero-SP) is put forwarded. First, in order to settle the problem of data exchange and share, collaborative workflow management among multiple PDM systems are critical processes for geographically distributed design and manufacturing systems. A distributed and open integrated product data management framework was developed based on a collaborative service platform by analyzing the technical performance of distributed product data management. The data communication method and safety assurance mechanism are also discussed. A simple portal is provided Web-based accessing for collaborative manufacturing enterprise, and actualized expediently the data exchange, share, querying and process collaborative management. Second, in order to settle the problem of product data consistency in remote environment among dynamic alliance enterprises in aero-SP, the distributed store strategy of product data based on original and duplicate data cooperation technique is designed and the coordinate process structure based on multi-server cooperation is setup according to the creating position and using attribute of product data. Further more, the initiative and automatic check between the central and secondary product databases among dynamic alliance enterprises is implemented by top-down product data consistency checking technique. All key enabling techniques were practiced in aero-SP of aviation project and the consistency controlling approach was verified