In this study, the authors developed a new seat ride evaluation method for transient vibrations by measuring the static and dynamic body pressure distribution of the seat cushion and the seat back, and subdividing the resulting pressure distribution data from the seat back into six sections and that from the seat cushion into nine sections. The authors found the difference in the body pressure change rate over time for the measured seats. Seat ride evaluation tests during transient vibrations revealed that the smaller the change in body pressure over time, the better the score obtained in the subjective evaluation. Tests also showed that unpleasant sensations could be determined from transient vibrations by the extent of the fluctuation in the dynamic body pressure rate. The new evaluation method can be utilised for improving the structure and physical properties of each seat part.
Samenvatting