An integrated data model and its application for missile design based on hyper-graph

Abstract

As a complex system engineering, the process of missile design and manufacture refers to numbers of subjects, such as propulsion, aerodynamics, control theory, mechanics and ballistic theory. Information of these subjects often has an influence and restriction on each other. As a result the design process presents both hierarchical and non-hierarchical characteristic. Traditional mode of missile design is a serial process which is hierarchical and engineers working in this mode ignore the influence between multi subjects, i.e., non-hierarchical character. Therefore the optimum solution is hard to obtain, meanwhile the mode leads the increasing of iteration, decreasing of efficiency and extending of design cycle. The mode of integrated design gives an attention to both hierarchical and non-hierarchical character, using method of integration to conforming sources and controlling design procedure, in order to optimize design. As basic data support the integrated data model (IDM) is the kernel of research in integrated design for missile. This paper has done some research on the integrated data model, as follow: (1) the paper analyzed the missile design process and sum up the element during the process; (2) the paper built the multi-view integrated data model to explain the relationship among organization view, process view, document view, product view and constraint view of missile design; (3) In order to describe the complex hierarchical and non hierarchical relationship among data of IDM, the paper imported hyper-graph and analyzed the IDM based on relational hyper-graph net; (4) At last, the paper developed a prototype system of integrated design platform for missile. Through the application, it is indicated that the models in this paper can describe the complex relationship among data of IDM and can efficiently conform the element of members, activities, data and constraints. Furthermore the models possess the feature of opening, expansibility and inheritability.