630 Study on the Analytical Model of Vibration Characteristics of the Seats for High Speed Railway Vehicle

Abstract

The seats for high speed railway vehicle have vibration characteristics which induce high frequency and torsional vibration. That has a possibility to disturb the ride comfort. Therefore, to analyze the vibrations mechanism, the seat model which has multiple degrees of freedom is suggested. In this paper, backrest and seat-base of the seat were modeled by suggested model. It can describe the vibration characteristics of the seat against the floor acceleration input. This model is considered as useful for analysis of vibration mechanism to improve the ride comfort.