The rotordynamic performance of API 617 standards provides two primary requirements. First, the standard stipulates system damping near the expected operating speed range. Second, the standard requires a specific bound of the worst case unbalance response. The problem this poses for machine designers is (1) feasibility: can bearings be designed for a given rotor to meet API 617 and (2) if so, how can these bearings be designed? Our primary effort in this research is to convert the API requirements to a control design objective for a bearing. This permits direct assessment of the feasible design problem as well as providing a means to synthesize optimal bearing dynamics. In addition to providing synthesis of magnetic bearings, the resulting bearing transfer functions give direct guidance to selection of more conventional fluid film or rolling element bearings.
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e-mail: ahj@amed.snu.ac.kr
e-mail: ehm7s@virginia.edu
e-mail: iwasaki@virginia.edu
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April 2005
Technical Papers
Feasibility Analysis for the Rotordynamic Performance of API617
Hyeong-Joon Ahn,
e-mail: ahj@amed.snu.ac.kr
Hyeong-Joon Ahn
Department of Mechanical and Aerospace Engineering, University of Virginia, 122 Engineer’s Way, Charlottesville, VA 22904-4746
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Eric H. Maslen,
e-mail: ehm7s@virginia.edu
Eric H. Maslen
Department of Mechanical and Aerospace Engineering, University of Virginia, 122 Engineer’s Way, Charlottesville, VA 22904-4746
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Tetsuya Iwasaki
e-mail: iwasaki@virginia.edu
Tetsuya Iwasaki
Department of Mechanical and Aerospace Engineering, University of Virginia, 122 Engineer’s Way, Charlottesville, VA 22904-4746
Search for other works by this author on:
Hyeong-Joon Ahn
Department of Mechanical and Aerospace Engineering, University of Virginia, 122 Engineer’s Way, Charlottesville, VA 22904-4746
e-mail: ahj@amed.snu.ac.kr
Eric H. Maslen
Department of Mechanical and Aerospace Engineering, University of Virginia, 122 Engineer’s Way, Charlottesville, VA 22904-4746
e-mail: ehm7s@virginia.edu
Tetsuya Iwasaki
Department of Mechanical and Aerospace Engineering, University of Virginia, 122 Engineer’s Way, Charlottesville, VA 22904-4746
e-mail: iwasaki@virginia.edu
Contributed by the International Gas Turbine Institute (IGTI) of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Paper presented at the International Gas Turbine and Aeroengine Congress and Exhibition, Atlanta, GA, June 16–19, 2003, Paper No. 2003-GT-38596. Manuscript received by IGTI, October 2002, final revision, March 2003. Associate Editor: H. R. Simmons.
J. Eng. Gas Turbines Power. Apr 2005, 127(2): 418-424 (7 pages)
Published Online: April 15, 2005
Article history
Received:
October 1, 2002
Revised:
March 1, 2003
Online:
April 15, 2005
Citation
Ahn, H., Maslen, E. H., and Iwasaki, T. (April 15, 2005). "Feasibility Analysis for the Rotordynamic Performance of API617 ." ASME. J. Eng. Gas Turbines Power. April 2005; 127(2): 418–424. https://doi.org/10.1115/1.1789492
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