Abstract

The real-time functionality of Simpack in an NVH simulator was developed in a vehicle model. The body forces generated from Simpack vehicle model and the sensitivity functions generated from the Finite Element Analysis (FEA) model was transferred into the Simulator software and used to calculate the noise and vibration responses. Driveline gear contact and suspension tuning were modified in Simpack model to meet the fixed step solver criteria. The body forces generated from Simpack model are highly comparable between variable step solver and fixed step solver. FTIRE model was adopted in this application to achieve a higher fidelity for noise and vibration evaluation on rough road surface. The functionality was completed and verified in the hardware.

Slide deck

Presenter Bio

Xing, Technical Lead in Controls Integration, General Motors Corp.

Dr. Xing is a technical lead in control integration in Noise and Vibration VDDV group in General Motors Company. He obtained his PhD degree from Michigan State University with a specialization in vibration and dynamics field. His current role at General Motors focus on utilizing multi-body-dynamics tool and driveline control model co-simulation to investigate noise and vibration problems, identify physics, support driveline control algorithm design and improvement.