Build, Verify & Optimise a Body-in-White Structure in a Working Day

Dr. Tayeb Zeguer, Group Tech Leader APD, Advanced CAE at Jaguar Land Rover presents at the UK Altair Technology Conference 2019. A Design exploration, loadpath studies, material selection and heavy usage of Optimisation are key to the development of a lightweight and efficient Body-In-White (BIW) structure. Nevertheless, the fast pace of vehicle development makes it a challenge to do such CAE work fast enough to drive the design and the decision making. This is why the C2 phase of the Altair C123 process is the ultimate weapon to drive the design in a fast and reliable manner. By using low fidelity models, the C2 phase allows quick iterations, large DOEs and complex optimisation studies to be executed within minutes and have a large impact on design and strategy decisions.

The natural starting point for the C2 process is the supply of a C1 layout model with associated CAD packaging data. However, another entry point is the availability of a high fidelity finite element model from a previous program. The initial activity is the rapid development of a C2 model which can generate a reliable and good quality results. This is the reason why Altair has developed various tools to ease the process of creating “ready to optimise” low fidelity models. Thanks to a highly automated series of tools combined with highly advanced optimisation technology, it is now possible to build, verify and optimise a BIW model for Noise, Vibration and Harshness (NVH) and Crash in a single working day.

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