Design engineering - a need to rethink the solution using knowledge based engineering

This paper discusses the current limitations of Computer Aided Design (CAD) tools and reports on the use of knowledge Based Engineering (KBE) in the c reation of a concept development tool, to organise information flow and as an architecture for the effective implementation of rapid design solutions. The KBE tool along with supporting analytical solutions has been applied t o the Body-In-White area of automotive design. The present methods of using CAD and Finite Element Analysis (FEA) systems do not use a unified product / process model representation and lead to the creation of separate non-rel ation data models that only capture the result of the engineering process. The KBE method unifies the engineering intent into a single model that allo ws for existing or novel design solutions to be assessed. These design solu tions can then represent themselves in the correct form to the analysis sys tems. Automeshing is achieved using a rule-base that meshes the model with respect to the analysis solution required, materials and processes. (C) 199 9 Elsevier Science B.V. All rights reserved.