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Analysis of the effect of squeeze film damper on the bending-torsional coupling vibration characteristics of dual-rotor system.
- Source :
-
Vibroengineering Procedia . Oct2022, Vol. 45, p1-7. 7p. - Publication Year :
- 2022
-
Abstract
- The study of the vibration reduction characteristics of SFD to the bending-torsional coupled vibration of the dual-rotor system can provide support for the structural design of aero-engines. Based on the overall eccentric disc model, the bending-torsional coupling dynamic equation of the dual-rotor system is established in this paper. The amplitude and nonlinear periodic characteristics of the dual-rotor system are obtained by combining Newmark-β method and Newton-Raphson method. The results show that the vibration reduction effect of SFD on bending-torsional coupling vibration is closely related to the speed. The vibration reduction effect of SFD is weak at the first-order critical speed range and below, and reduces the torsional amplitude by 70 % at the second-order critical speed range and above. SFD kept the bending-torsional coupling vibration of the dual-rotor system stable in a stable 5-period motion state. [ABSTRACT FROM AUTHOR]
- Subjects :
- *NEWTON-Raphson method
*STRUCTURAL design
Subjects
Details
- Language :
- English
- ISSN :
- 23450533
- Volume :
- 45
- Database :
- Academic Search Index
- Journal :
- Vibroengineering Procedia
- Publication Type :
- Academic Journal
- Accession number :
- 159828451
- Full Text :
- https://doi.org/10.21595/vp.2022.22902