Operating of rotating machinery with a rotor crack is a risk condition, since the rotor crack grows gradually and may fail causing a catastrophic accident. Therefore, it is very important to detect the occurrence of a crack on rotating machinery in early stages. The authors have used the simple two-degree-of-freedom cracked rotor model, and investigated the usage of periodic excitation for the detection of the rotor crack. This paper constructs a finite element rotor model with breathing crack element, and performs the numerical investigation. The dynamic responses of a cracked rotor system under applied periodical external excitation are investigated. The occurrences of various kinds of nonlinear sub-resonances are observed numerically, and the dynamical characteristics of these sub-resonances are clarified. The influences of the position and depth of the crack are clarified. Furthermore, these sub-resonances due to crack are observed in the experiment. This result made us enable to detect the occurrence of a rotor crack.
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ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
September 4–7, 2007
Las Vegas, Nevada, USA
Conference Sponsors:
- Design Engineering Division and Computers and Information in Engineering Division
ISBN:
0-7918-4802-7
PROCEEDINGS PAPER
Vibration Analysis and Detection of Rotor Crack in a Multi-Disk Rotor System by Periodic Excitation Using AMB
Tsuyoshi Inoue,
Tsuyoshi Inoue
Nagoya University, Nagoya, Aichi, Japan
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Toshihiro Yamamichi,
Toshihiro Yamamichi
Sharp Corporation, Osaka, Japan
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Masato Kato,
Masato Kato
Nagoya University, Nagoya, Aichi, Japan
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Yukio Ishida
Yukio Ishida
Nagoya University, Nagoya, Aichi, Japan
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Tsuyoshi Inoue
Nagoya University, Nagoya, Aichi, Japan
Toshihiro Yamamichi
Sharp Corporation, Osaka, Japan
Masato Kato
Nagoya University, Nagoya, Aichi, Japan
Yukio Ishida
Nagoya University, Nagoya, Aichi, Japan
Paper No:
DETC2007-34639, pp. 1205-1214; 10 pages
Published Online:
May 20, 2009
Citation
Inoue, T, Yamamichi, T, Kato, M, & Ishida, Y. "Vibration Analysis and Detection of Rotor Crack in a Multi-Disk Rotor System by Periodic Excitation Using AMB." Proceedings of the ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 1: 21st Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C. Las Vegas, Nevada, USA. September 4–7, 2007. pp. 1205-1214. ASME. https://doi.org/10.1115/DETC2007-34639
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