Special edition paper · Decrease of car body rolling vibration when passing through curves ⇒ Target: steady lateral acceleration of 0.9 m/s2 or less

Lateral Ride Comfort3 In order to improve lateral ride comfort of Shinkansen rolling stock, it is important to reduce lateral vibration of cars by setting appropriate specifications for bogies. The bogie specifications must be determined with consideration made regarding conditions such as vibration characteristics for vibration caused by track displacement, vibration characteristics in relation to the forces acting on the car body caused by airflow disruption around the car body in tunnels and running stability at high speed. In particular, we had to study more appropriate spring and damper characteristics along with lateral vibration control systems. The reason those studies were necessary is the fact that damper characteristics between car body and bogie are different for vibration caused by track displacement and for vibration by the force to the car body caused by airflow disruption