A change and maintenance method is proposed based on the change propagation model and the procedure model information for solving data maintenance problem of 3D machining procedure model change and to help improve the flexibility of 3D machining procedure model and the reliability of the change result. Design Structure Matrix (DSM) is established by analyzing the relationships between machining features in the machining process route to obtain all possible propagation paths. On the basis of obtained paths, machining features that may be affected and machining procedure models related to machining features are stored by the structured method. Algorithms to solve the problems of adding, deleting and modifying machining features are proposed to realize the change and maintenance of 3D machining procedure model by combining machining procedure model’s information in the machining process route. In the end, some numerical examples are given to explain both rationality and feasibility of the proposed approaches.

The composition and reuse of distributed design resources is the key issue in collaborative operation of complicated products. In the first place, a collaborative service framework aiding design resources reuse is established to help encapsulate reusable resources. Meanwhile, to realize interoperability between function and data of heterogeneous resources, shared ontology and private ontology are separately built for different design disciplines and tool resources within the disciplines. Then, collaborative service planning is divided into different stages. And generating algorithm serving planning program is proposed to obtain feasible program collection of service composition. Finally, taking design of aero engine compressor as an example, the effectiveness of collaborative service planning algorithm is verified by providing an atomic service ontology instance.

The development of aeroengine needs the collaboration of many enterprises. In order to realize the share and optimization configuration of different enterprises’ design and manufacturing resources, a method of realizing product collaborative development based on grid service is proposed. In the method, the collaboration among enterprises is realized by grid service cell. The grid service cell is an encapsulated service agent which can provide certain design and manufacturing abilities through the network. Enterprises can release their grid service information in the portal and create their grid service cells, and then they become the grid service supplier. The customers use the grid service matching engine to search the suited grid services in the portal and use these services to accomplish the product development. Accordingly the method can realize the optimization configuration of different enterprises’ design and manufacturing resources. Therefore, a prototype system of networked collaborative development of aeroengine based on grid service is developed. In the system, an ontology of aeroengine networked collaborative development is proposed, and the models of grid service cell and grid service requirement are built. Aiming at the matching of the grid service, a matching method based on semantic is proposed; a mathematic model for grid service matching is created and the corresponding matching algorithm is presented. Finally, we validated the prototype system with the example of the collaborative development of an aeroengine part.