Analysis of carbody abnormal low-frequency vibration in high-speed EMU caused by thin-flange wheel profile

Hanliang Tao, Wubin Cai, Maoru Chi, Yabo Zhou, Wentian Xu, Yue Wu, Chuang Liu, State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, School of Mechanical Engineering, Southwest Jiaotong University, CRRC Changchun Railway Vehicles Co

Journal of Vibration and Control

Published online on February 10, 2026

Abstract

Journal of Vibration and Control, Ahead of Print.
Carbody Abnormal Low-Frequency Lateral Vibration (CALFLV) represents a critical operational challenge for high-speed EMUs. This phenomenon was recently observed in a high-speed EMU when negotiating 2200 m-radius curves at approximately 180 km/h on a ...