Review on Dynamic Modeling and Vibration Characteristics of Rotating Cracked Blades

Hui Ma; Zhiyuan Wu; Jin Zeng; Weiwei Wang; Hongji Wang; Hong Guan; Wenming Zhang

doi:10.37965/jdmd.2023.465

Authors

Hui Ma School of Mechanical Engineering and Automation, Northeastern University, China & Key Laboratory of Vibration and Control of Aero-Propulsion Systems Ministry of Education of China, Northeastern University, China https://orcid.org/0000-0002-9812-0806
Zhiyuan Wu State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, China https://orcid.org/0000-0001-6947-4296
Jin Zeng School of Mechanics and Engineering, Southwest Jiaotong University, China
Weiwei Wang School of Mechanical Engineering and Automation, Northeastern University, China https://orcid.org/0009-0007-2012-4245
Hongji Wang School of Mechanical Engineering and Automation, Northeastern University, China
Hong Guan School of Mechanical Engineering and Automation, Northeastern University, China https://orcid.org/0009-0004-9082-515X
Wenming Zhang State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, China

DOI:

https://doi.org/10.37965/jdmd.2023.465

Keywords:

crack propagation, breathing crack, dynamic modelling, cracked blade, dynamic characteristics

Abstract

As one of the most important parts in the engine, the structure and state of the rotating blade directly affect the normal performance of the aero engine. In order to monitor engine crack failure and ensure flight safety, it is necessary to carry out research on the dynamic modeling of the cracked blade and breathing crack induced vibration mechanisms. This paper summarizes the current research status on the dynamics of cracked blade and the related topics mainly include four aspects: crack propagation path, mechanical model of open and breathing cracks, dynamic modeling methods of cracked blades such as lumped mass model, semi-analytical model and finite element model, and dynamic characteristics of cracked blades. The review will provide valuable references for future studies on dynamics and fault diagnosis of cracked blade in aero engine.

Conflict of Interest Statement

Hui Ma is an associate editor for the Journal of Dynamics, Monitoring and Diagnostics, and he was not involved in the editorial review or the decision to publish this article. The authors declare that they have no conflict of interest.