On the Acoustic/dynamic Characteristics of the Resilient Wheel : Part 1 ; Comparison with Other Anti-Noise Wheels in the Running Test

Abstract

Various types of wheels were tested for the reduction of wheel/rail noise at SHINKANSEN test track and the characteristics of wheel/rail noise were examined. Thereby, it was verified that the contribution of noise generated by the vibration of wheel to the wheel/rail noise (roar) is comparatively small in high speed operation on straight track. Accordingly, in such a case, a damped wheel is generally ineffective and a resilient wheel shows a little effect. This is considered to be a result of reduction of the wheel/rail force. A study is made on the dominant characteristics of resilient wheel which controls the wheel/rail force.