Dynamic Modelling Research of the Dual-Rotor System for Aero-Engine

Authors

  • CholUk Ri  School of Mechanical Science and Technology, Kim Chaek University of Technology, Pyongyang, Democratic People's Republic of Korea
  • KwangIl Ri  School of Mechanical Science and Technology, Kim Chaek University of Technology, Pyongyang, Democratic People's Republic of Korea
  • CholHyok Kye  School of Mechanical Science and Technology, Kim Chaek University of Technology, Pyongyang, Democratic People's Republic of Korea
  • KumChol Kim  School of Mechanical Science and Technology, Kim Chaek University of Technology, Pyongyang, Democratic People's Republic of Korea
  • JongMin Han  School of Mechanical Science and Technology, Kim Chaek University of Technology, Pyongyang, Democratic People's Republic of Korea
  • MyongHo Kwon  Department of Transport Mechanical Engineering, Pyongyang University of Mechanical Engineering, Pyongyang, Democratic People's Republic of Korea
  • SuJin Jang  Department of Transport Mechanical Engineering, Pyongyang University of Mechanical Engineering, Pyongyang, Democratic People's Republic of Korea
  • SongHyok Pak  Department of Transport Mechanical Engineering, Pyongyang University of Mechanical Engineering, Pyongyang, Democratic People's Republic of Korea
  • InHyok Min  School of Mechanical Science and Technology, Kim Chaek University of Technology, Pyongyang, Democratic People's Republic of Korea
  • JinHyok Kim  School of Mechanical Science and Technology, Kim Chaek University of Technology, Pyongyang, Democratic People's Republic of Korea

Keywords:

Aero-engine; Dynamic modelling; dual-rotor system; Inherent characteristics; Unbalanced response.

Abstract

At present, dual-rotor structure is widely used in aero-engines. In this structure, low-pressure rotor and high-pressure rotor sleeve together. The vibration of rotor system caused by the blade disks, the supportings, the unbalance of rotor and the misalignment of supportings, is the main source of aero-engine vibration fault. The study are insufficiency on inherent characteristics, unbalanced vibration response of the internal and external dual rotor aero-engine, coupling of unbalanced vibration between two rotors. Combining theory, simulation and experiments is the main method to study the vibration characteristics of aero-engine. By building a simplified test-bed, the influence of many interference factors in aero-engine can be eliminated and the basic vibration characteristics of aero-engine can be analyzed. However, there are few test-beds for studying the vibration characteristics of aero-engine dual-rotor at present, as well as the study on basic vibration characteristics. Aiming at the internal and external dual rotor system of aero-engine, vibration characteristics analysis of aero-engine dual-rotor system was carried out. Based on the dual rotor system of aero-engine, Introducing the sleeve coupling and intermediate bearing, aero-engine dual-rotor system model was built according to the principle of equivalent mass and equivalent moment of inertia.

References

  1. Hooker S. History of the pegasus vectored thrust engine [J]. Journal of Aircraft, 1981, 18(5): 322-326.
  2. Hibner D H, Kirk R G, Buono D F. Analysis and experimental investigation of the stability of intershaft squeeze film dampers, part I: Demonstration of instability[J]. Journal of Mechanical Design, 1997, 99(2): 47-52.
  3. Muszynska A. Rotordynamics [M]. CRC press, 2005.
  4. Foppl A. Das problem derlavalschen turbine welleder civiling engine [J]. 1985, 4(1): 335-342.
  5. Jeffcott H. The lateral vibration of loaded shafts in the neighbourhood of a whirling speed[J]. Philosophical Magazine Series 6, 1919, 37(219): 304-314.
  6. Mitchell L D, Mellen D M. Torsional lateral coupling in a geared high speed rotor system[J]. ASME paper, 1975, 1(1): 75-85.
  7. Prohl M A. A general method for calculating critical speeds of flexible rotors[J]. Journal of Applied Mechanics, 1945, 12(3):142-148.
  8. Gupta K, Gupta K D, Athre K, et al. Unbalance response of a dual rotor system: theory and experiment [J]. Journal of Vibration and Acoustics, 1993, 115 (4): 427-435.
  9. Athre K G D G. Unbalance response of a dual rotor system: theory and experiment [J]. Journal of Vibration & Acoustics, 1993, 115 (4): 427-435.
  10. Chiang H W D, Hsu C N, Jeng W, et al. Turbomachinery dual rotor-bearing system analysis [C]. ASME Turbo Expo 2002: Power for Land, Sea, and Air, 2002: 803-810.
  11. Ferraris G, Lalanne M, Prediction of the dynamic behavior of non-symmetric coaxial co-or counter-rotating rotors [J]. Journal of Sound and Vibration, 1996, 195(4): 649-666.
  12. Musynska A. Stability of whirl and whip in rotor bearing system [J]. Journal of sound and Vibration, 1988, 127(1): 49-64.
  13. Choi Y S. Investigation on the whirling motion of full annular rotor rub [J].Journal of Sound and Vibration, 2001, 258(1): 191-198.
  14. Fei C , Liu H , Li S , et al. Dynamic parametric modeling-based model updating strategy of aeroengine casingsJ. Chinese Journal of Aeronautics, 2021.
  15. Sheng H, Zhang T, Jiang W. Full-Range Mathematical Modeling of Turboshaft Engine in Aerospace J. International Journal of Turbo and Jet Engines, 2015.
  16. Visser W, Kogenhop O, Oostveen M. A Generic Approach for Gas Turbine Adaptive Modeling J. Journal of Engineering for Gas Turbines and Power, 2006.
  17. Mink G, Behbahani A. The AFRL ICF Generic Gas Turbine Engine ModelC// Aiaa/asme/sae/asee Joint Propulsion Conference & Exhibit. 2013.

Downloads

Published

2023-06-30

Issue

Section

Research Articles

How to Cite

[1]
CholUk Ri, KwangIl Ri, CholHyok Kye, KumChol Kim, JongMin Han, MyongHo Kwon, SuJin Jang, SongHyok Pak, InHyok Min, JinHyok Kim, " Dynamic Modelling Research of the Dual-Rotor System for Aero-Engine, IInternational Journal of Scientific Research in Mechanical and Materials Engineering(IJSRMME), ISSN : 2456-3307, Volume 7, Issue 3, pp.06-14, May-June-2023.