Analyzing Ride Comfort in Realtime by Integrating Flexible Body in White | E-seminar Sneak Peak

Описание: Watch this e-seminar to learn more about the integration of an optimized flexible body in white into a full-vehicle Multibody Dynamics model. With the ever-more competitive automotive industry, the requirement to focus on simulations has become extremely critical. One of the main focuses is to reduce the number of physical prototypes required for testing vehicle characteristics. This can significantly reduce vehicle development costs. Hence driving simulators have become even more popular and a powerful tool to achieve the goal towards zero prototypes. As much as the technical capability of these simulators is important, developing a high-fidelity multibody dynamics physics model is equally important to experience accurate feedback from the realtime rigs. Full vehicle attributes can be broadly classified in two categories based on frequency range: Handling (up to 5-7 Hz) and Ride (up to 30-35 Hz).
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A full component-based multibody dynamics was developed in Simpack using all rigid bodies. A BiW FE model was created in Abaqus. This FE model was modally reduced using Craig Bampton reduction method and then integrated into the Simpack model. This vehicle model was run on a rough road surface using a semi-physical tyre model and accelerations at the seat rails were extracted. Results were compared between:
Full rigid BiW
Full Flex BiW (All Eigen Modes enabled) using a variable step size solver
Optimized Flex BiW (Eigen modes affecting Ride) using a variable step size solver
Optimized Flex BiW using a fixed step size solver – to understand possible realtime capability

▶️ Watch the full e-seminar: https://r1132100503382-eu1-3dswym.3de...

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