Research on inter-shaft bearing fault diagnosis method based on STFT-CNN modeling

Jing Tian, Ziqi Zhao, Zheng Lin, Fengling Zhang, Renzhen Chen, Liaoning Key Laboratory of Advanced Test Technology for Aeronautical Propulsion System, Shenyang Aerospace University, PR China, College of Information Science and Engineering, Northeastern University

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering

Published online on April 26, 2026

Abstract

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, Ahead of Print.
The fault signals of inter-shaft bearings exhibit nonlinear and non-stationary characteristics, making it difficult for traditional feature extraction methods to effectively capture their intrinsic features, which in turn affects the accuracy of fault ...