CAD-MBSE interoperability for the checking of design requirements

In a global approach to the design of mechanical systems, it is essential that all requirements are met. This is why it is important that all the disciplines that contribute to the realization of the product interact together. Model Based System Engineering (MBSE) is an interdisciplinary scientific approach, which is based on the use of standard representations, such as the systems modeling language SysML, to ensure integration, consistency and traceability between models generated during the systems development process. Computer-aided design (CAD), which has today become an essential step in modern industry, is also fundamental in the realization of the product. It covers the entire design process as well as that of the manufacture of all industrial products. However, a problem of collaboration between the system engineer who has a global view of the product and the designer who is the CAD specialist arises due to the lack of standard means of communication between the two disciplines. For this, our work aims to solve this problem of MBSE-CAD interoperability in order to finally be able to ensure the satisfaction of the product requirements. A methodology has been highlighted whose role is to collect data from the CAD model and translate them into data in SysML format. This methodology then plans to help the system engineer to build assembly graphs in SysML format from a 3D digital model. Based on a case study, that of a driving wheel of a forklift, the proposed methodology is illustrated with a validation example.