Four post shake optimization and robustness study using modeFRONTIER

Shake is undesirable low frequency vibrations generated due to powertrain or road excitations. These vibrations are perceived by customers through touch points such as seats, floor and steering wheel. For better vehicle interior comfort and perceived vehicle quality, it’s important to minimize these shake vibrations. Four post shake simulations are used to predict the shake performance due to road excitations.
This presentation will explore part of an optimization and robustness study of vibrational performance using modeFRONTIER, highlighting how an optimal solution is not always the most robust. Therefore, given the dispersions of production and supply variability, vibrations perceivable in different vehicles can vary significantly. A tradeoff between robust & optimal solution is inevitable.