These slides were presented at the NAFEMS World Congress 2025, held in Salzburg, Austria from May 19–22, 2025.

Abstract

Dynisma Motion Generators combine class leading latency and bandwidth with large horizontal excursion and high acceleration. This delivers unrivalled vehicle dynamics simulation capabilities in the most immersive experience possible for a driver. Our customers range from motorsport teams looking to extract the most from their drivers and cars, through to automotive manufacturers looking to shorten the development times of new vehicles. In either case, the accurate representation of the driving experience is key to their success. From full system multi-body modelling right through to subsystem stress analysis, simulation and optimisation form the backbone of the development process of Dynisma Motion Generator systems. They are designed to target world leading bandwidth long before confirming it in comprehensive real-world testing programmes. Within Dynisma the successful use of CAE is essential as we do not build prototypes, so every motion generator that we design and build has to perform as expected when the customer uses it. This is combined with demanding project timescales that require us to be not only agile but also to select the appropriate simulation tool and methodology to suit the requirements. Our CAE needs vary depending on the design stage, therefore we use a range of CAE tools, including Matlab, Simulink, Simsolid and HyperMesh, combining the outputs of tools to input to others to achieve our goals. One of the biggest challenges is determining what loads are introduced into the structure by the operation of the motion generator, and how this is distributed: from the attachment of the seat supporting the driver, all the way through to the floor supporting the machine. This talk will outline the approach to CAE that we use throughout the design process, supporting concepts through to certification. Our approach to CAE in the design process will be illustrated with examples from the design of our latest simulator. This will show how system level models feed into the detailed assessments of components and ultimately successful certification for use across the world.