Modeling and dynamic characteristic analysis of dual rotor-casing coupling system with rubbing fault
With the rapid development of aero-engine manufacturing technology, the dual-rotor system has been employed in part of turbofan engine in order to improve the working performance of aircraft more efficiently. In this study, taking the counter-rotation dual-rotor as the research object, the dynamic model of dual rotor-casing coupling system is established by the aid of MATLAB. The dynamic frequency curves are in good agreement with the results in references and calculated by FEM method, that shows the validity and feasibility of the model. The local rub-impact dynamic model of dual rotor-casing coupling system is established, and rubbing analysis is carried out using Newmark-β method. The effects of rotating speed and speed ratio on local rub-impact response are deeply discussed. The results show that with the increase of rotating speed, combined frequencies and frequency multiplication components are more significant. In addition, speed ratio has a great influence on the periodic motion of the system. With the increase of the absolute value of the speed ratio, the whirl radius of the outer rotor and the normal rubbing force increase dramatically.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/14613484
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Supplemental Notes:
- © Bingqiang Li et al, 2021.
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Authors:
- Li, Bingqiang
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0000-0003-1637-7868
- Zhou, Honggen
- Liu, Jinfeng
- Kang, Chao
- Publication Date: 2022-3
Language
- English
Media Info
- Media Type: Web
- Features: Figures; References; Tables;
- Pagination: pp 41-59
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Serial:
- Journal of Low Frequency Noise, Vibration and Active Control
- Volume: 41
- Issue Number: 1
- Publisher: Sage Publications, Incorporated
- ISSN: 1461-3484
- EISSN: 2048-4046
- Serial URL: https://journals.sagepub.com/home/lfn
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Publication flags:
Open Access (libre)
Subject/Index Terms
- TRT Terms: Aircraft; Dynamic models; Impact; Rotor blades; Speed; Turbofan engines
- Subject Areas: Aviation; Vehicles and Equipment;
Filing Info
- Accession Number: 01847152
- Record Type: Publication
- Files: TRIS
- Created Date: May 25 2022 9:40AM