Dynamic characteristic analysis of a twin-spool rotor–casing system with looseness and intershaft rubbing coupling faults

Shao, Jun; Wu, Jigang; Yang, Kang; Zhang, Yuan

doi:10.1007/s12206-023-1209-8

J Mech Sci Technol

2024

DOI: 10.1007/s12206-023-1209-8

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Dynamic characteristic analysis of a twin-spool rotor–casing system with looseness and intershaft rubbing coupling faults

Jun Shao,

Jigang Wu,

Kang Yang

et al.

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Study on Rubbing-Induced Vibration Characteristics Considering the Flexibility of Coated Casings and Blades

Zhang,

Yang,

Tai

et al. 2024

Machines

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Rubbing between a blade and its coated casing is one of the main failures in aero-engine systems. This paper aims to study the effects of coated casings on rubbing-induced dynamic responses considering the flexibility of the coated casing and the flexibility of the blade. Firstly, an actual compressor blade is established by the shell element and verified by the experiment and ANSYS 19.2 software. Subsequently, a new dynamic model for the coated casing is proposed based on the laminated shell element, and the proposed dynamic model for the coated casing is verified by comparing the natural characteristics calculated by ANSYS software. Moreover, a comprehensive analysis is conducted to analyze the influences of the casing model, coating parameters, and casing parameters on vibration characteristics. Finally, the results show that the coating can diminish the severity level of rubbing. Notably, the material and thickness of the coating can change the nodal diameter vibrations of the casings (NDVCs) induced by rubbing. This study provides valuable guidance for the optimization and design of blade–casing systems.

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Study on Rubbing-Induced Vibration Characteristics Considering the Flexibility of Coated Casings and Blades

Zhang,

Yang,

Tai

et al. 2024

Machines

View full text Add to dashboard Cite

show abstract

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Dynamic characteristic analysis of a twin-spool rotor–casing system with looseness and intershaft rubbing coupling faults

Cited by 1 publication

References 53 publications

Study on Rubbing-Induced Vibration Characteristics Considering the Flexibility of Coated Casings and Blades

Study on Rubbing-Induced Vibration Characteristics Considering the Flexibility of Coated Casings and Blades

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