동력기계공학회지 (Journal of Power System Engineering)

  • 제16권3호
  • /
  • Pages.22-28
  • /
  • 2012
  • /
  • 2713-8429(pISSN)
  • /
  • 2713-8437(eISSN)
한국동력기계공학회 (The Korean Society for Power System Engineering)
권호 표지
DOI QR코드

DOI QR Code

탄성 로터의 백업베어링 충돌 시 동적 응답 해석

Dynamic Response Analysis of a Flexible Rotor During Impact on Backup Bearings

  • Park, K.J. (Department of Mechanical and Automotive Engineering, Chonnam National University) ;
  • Bae, Y.C. (Korea Electric Power Research Institute)
  • 투고 : 2011.08.23
  • 심사 : 2012.04.12
  • 발행 : 2012.06.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Active magnetic bearings(AMBs) present a technology which has many advantages compared to traditional bearing concepts. However, they require backup bearings in order to prevent damages in the event of a system failure. In this study, the dynamics of an AMB supported rotor during impact on backup bearings is studied employing a detailed simulation model. The backup bearings are modeled using an accurate ball bearing model, and the model for a flexible rotor system is described using the finite element approach with the component mode synthesis. Not only the influence of the support stiffness, clearance and friction coefficient on the rotor orbit, but also bearing load are compared for various rotor system parameters. Comparing these results it is shown that the optimum backup bearing system can be applicable for a specific rotor system.

키워드

참고문헌

  1. G. G. Choung, J. H. Yang and C. H. Kim, 2011, "Multivariable Control System Design for Magnetic Bearing", J. KSPSE, Vol. 15, No. 1, pp. 78-85.
  2. S. R. Penfield and E. Rodwell, 2001, "Auxiliary Bearing Design Considerations for Gas-Cooled Reactors", IAEA Conference, Palo Alto, USA, pp. 190-201.
  3. P. McMullen, V. Vuong and L. Hawkins, 2006, "Flywheel Energy Storage System with AMB's and Hybrid Backup Bearings", Proc. 10th Inter. Symp. Magnetic Bearings, Martigny, Switzerland.
  4. H. M. Chen, J. Walten and H. Heshmat, 1997, "Zero Clearance Auxiliary Bearings for Magnetic Bearing Systems", Proc. 42nd Inter. Gas Turbine and Aerodynamic Cong., Orlando, USA.
  5. M.O.T. Cole, P. S. Keogh and C. R. Burrows, 2002, "The Dynamic Behavior of a Rolling Element Auxiliary Bearing Following Rotor Impact", ASME J. Trib., Vol. 124, pp. 406-413. https://doi.org/10.1115/1.1430673
  6. A. Karkkainen, J. Sopanen and A. Mikkola, 2007, "Dynamic Simulation of a Flexible Rotor During Drop on Retainer Bearings", J. Sound and Vib., Vol. 306, pp. 601-617. https://doi.org/10.1016/j.jsv.2007.05.047
  7. D. Ransom and A. Masala, 2010, "Numerical and Experimental Simulation of a Vertical High Speed Motor-compressor Rotor Drop onto Catcher Bearings", J. Sys. Design and Dynamics, Vol. 4, No. 4, pp. 596-606.
  8. J. Sopanen and A. Mikkola, 2003, "Dynamic Model of a Deep Groove Ball Bearing Including Localized and Distributed Defects, Part I: Theory", Proc. Inst. Mech. Engr., J. Multi-body Dynamics Vol. 217(K), pp. 201-211.

피인용 문헌

  1. Results and Analysis of an Accident in 35-kWh SFES vol.23, pp.6, 2013, https://doi.org/10.1109/TASC.2013.2265258