Abstract
With the implementation and application of MBSE (Model Based System Engineering) in enterprises, a vast number of system model files is constantly and increasingly generated. The problem of how to acquire the knowledge carried by the system model and reuse the system model is urgently required to be solved. Therefore, a cross-products system model graph construction method supporting system model reuse is proposed. System model graph is constructed by defining the SysML metamodel ontology and the construction strategy is given. The entity alignment based on the relationship set and the rule-based reasoning is applied to achieve the fusion of multiple subgraphs, and the semantic extended retrieval of design requirements is realized based on this graph. Finally, the case studies of the Automatic Climate Control Integrated System of car and satellite design verify the effectiveness and practicability of the method, supporting system model reuse. In conclusion, the paper indicates that it is feasible to express the system model with knowledge graph and the constructed system model knowledge graph can well support the retrieval and reuse of cross- products system models.
Highlights
With the extension and development of system engineering, gradual increase in customer demand for multidisciplinary and complex products, the complexity of products is increasing
This paper aims to use knowledge graph technology to build and fuse system model graphs of different products, so as to establish the relationship among system models of different products and realize the retrieval of the useful system models
Multi-graphs fusion is achieved by entity alignment based on relation set and rule completion based on rule-based reasoning in section 5, and this section introduces a reuse method of system model graph: model retrieval
Summary
With the extension and development of system engineering, gradual increase in customer demand for multidisciplinary and complex products, the complexity of products is increasing. Hummell et al [14] proposes to use SysML to model the variability of products to deal with the variability and change ability required by customization, and applies this method to the development of product line for power generation of wind turbine system. The research of this paper can expand and improve the MBSE theoretical system, and provide an effective method and new way for the system design of complex products. (1) A method of using knowledge graph as the organization form of SysML model to facilitate the reuse of system model is proposed. Multi-graphs fusion is achieved by entity alignment based on relation set and rule completion based on rule-based reasoning, and this section introduces a reuse method of system model graph: model retrieval. The method proposed in this paper is verified by two examples
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