Abstract
Ride comfort criteria are a key challenge for vehicle dynamic design and optimization. Currently optional parameter is the vertical impact, and longitudinal impact is neglected. With further requirements for future comfortability, effects of longitudinal impact should be investigated in detail. A longitudinal impact model is firstly proposed to evaluate the ride comfort factors based on the dynamic theory and commercial ADAMS® software. Predictions revealed that the hard points of the suspension and the stiffness of rubber bushing (SORB) are the primary factors. A novelty finding is that travel of rubber bushing (TORB) in the linear region is the most important parameter for ride comfort optimization and suspension factor is the weakest, and experimental validation is performed with better agreements.
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