Motorbike Vibrations Induced by Surface Irregularities in Road Pavements

Abstract The author proposes a multi-axis equivalent mechanical system with two degrees of freedom on the horizontal plane and five along vertical axis to evaluate accelerations motorbike’s seat using state- space representation. experimental investigations three types routes analyze comfort vibrational motorcycle: paved roads poor maintenance, road surface crushed stone, an artificial bump. Experimental processing considers gyroscopic accelerometric signals deduce Euler angles. error analysis evaluates discrepancy between predicted, calibrated mathematical model, those obtained in investigations. model estimates vibrations induced by irregularities pavements. prediction analyzes resonance frequencies human spine 4-12 Hz.