Review on Dynamic Modeling and Vibration Characteristics of Rotating Cracked Blades  

作　　者：Hui Ma Zhiyuan Wu Jin Zeng Weiwei Wang Hongji Wang Hong Guan Wenming Zhang 

机构地区：[1]School of Mechanical Engineering and Automation,Northeastern University,Shenyang,Liaoning 110819,People’s Republic of China [2]Key Laboratory of Vibration and Control of Aero-Propulsion Systems Ministry of Education of China,Northeastern University,Shenyang,Liaoning 110819,People’s Republic of China [3]State Key Laboratory of Mechanical System and Vibration,Shanghai Jiao Tong University,Shanghai 200240,People’s Republic of China [4]School of Mechanics and Engineering,Southwest Jiaotong University,Chengdu 610031,People’s Republic of China

出　　处：《Journal of Dynamics, Monitoring and Diagnostics》2023年第4期207-227,共21页动力学、监测与诊断学报（英文）

基　　金：supported by the National Natural Science Foundation of China (Grant no.11972112,12032015,12121002 and 12202368);the Natural Science Foundation of Sichuan Province (Grant Nos.2022NSFSC1997).

摘　　要：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 aeroengine.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 aeroengine.

关 键 词：breathing crack crack propagation cracked blade dynamic characteristics dynamic modeling 

分 类 号：V23[航空宇航科学与技术—航空宇航推进理论与工程]