Speed-synchronized time-frequency ridge extraction from axlebox vibrations

Zhixin Liu, Jinsong Zhou, Tengfei Wang, Dao Gong, Kai Zhou, Xin Deng, College of Transportation, Shanghai Key Laboratory of Rail Infrastructure Durability and System Safety, Tongji University, s Republic of China, School of Mechanical Engineering, Donghua University

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit

Published online on May 14, 2026

Abstract

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, Ahead of Print.
Track irregularities critically impact railway operational safety, necessitating quantitative analysis. Existing geometric methods perform spatial domain analysis via angular domain resampling but rely heavily on precise synchronous speed data. ...