<b>Development of Longitudinal Excitation Suppression Devices for Reducing Car-body Elastic Vibrations in Bullet Trains</b>

This study proposes a method to reduce car body elastic vibrations in bullet trains caused by longitudinal excitation via traction devices and yaw dampers. We devised two vibration reduction devices—"displacement-dependent rubber bushes" "mesh springs" suppress the force. conducted tests using Shinkansen (bullet train) type test vehicle rolling stock testing plant examine running stability suppression performance when mounting developed devices. Subsequently, we confirmed that these meet required for body.