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Erschienen in:

2019 | OriginalPaper | Buchkapitel

Active Control of Rotating Machinery Under Rotor-Stator Contact Conditions

verfasst von : Patrick S. Keogh, Chris Lusty, Nicola Y. Bailey, Fawaz Saket

Erschienen in: Proceedings of the 10th International Conference on Rotor Dynamics – IFToMM

Verlag: Springer International Publishing

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Abstract

A rotor spinning within an active magnetic bearing (AMB) system will normally be levitated and hence operate without rotor-stator contact. External disturbances and inherent unbalance may be compensated with appropriate control to keep rotor deviations within the clearance gap. However, AMBs have limited dynamic load capacity due to magnetic material field saturation. Hence overload conditions may result in rotor-stator contact. A touchdown bearing (TDB) and rotor landing sleeve are usually included to protect the expensive rotor, magnetic bearing and sensor components from damage. Once rotor-TDB contact has been made, rotor dynamic conditions may ensue resulting in persistent rotor bouncing or rubbing limit cycle responses. Prolonged exposure to these severe dynamics will cause TDB degradation and require regular replacement. If possible, a clear aim should be to restore contact-free levitation through available control capability in an efficient manner. This paper is used to guide the control options that are available to restore contact-free levitation. The use of AMB control is appropriate if the required control forces are within saturation limits. It is also possible to actuate TDBs and destabilize persistent rotor dynamic contact conditions. For example, piezo-based actuation offers larger control forces than those from magnetic bearing systems. Hybrid control action involving both types of actuation system has the greatest potential for completely robust restoration of contact-free levitation.

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Vorheriges Kapitel Experimental Validation of Angular Viscoelastic Dynamic Neutralizers Designed for Flexural Vibration Control in Rotating Machines

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Bartha, A.R.: Dry friction induced backward whirl: theory and experiment. In: Proceedings of the 5th IFToMM Conference on Rotor Dynamics, Darmstadt, Germany (1988)

Fumagalli, M., Varadi, P., Schweitzer, G.: Impact dynamics of high speed rotors in retainer bearings and measurement concepts. In: Proceedings of the 4th International Symposium on Magnetic Bearings (ISMB4), Zurich, Switzerland (1994)

Schmied, J., Pradetto, J.C.: Behavior of a one ton rotor being dropped into auxiliary bearings. In: Proceedings of the 3rd International Symposium on Magnetic Bearings (ISMB3), Alexandria, USA (1992)

Kirk, R.G., Ishii, T.: Transient response drop analysis of rotors following magnetic bearing power outage. In: Proceedings of the MAG 1993, Alexandria, USA (1993)

Kirk, R.G., Swanson, E.E., Kavarana, F.H., Wang, X.: Rotor drop test stand for AMB rotating machinery, part 1: description of test stand and initial results. In: Proceedings of the 4th International Symposium on Magnetic Bearings (ISMB4), Zurich, Switzerland (1994)

Swanson, E.E., Kirk, R.G., Wang, J.: AMB rotor drop initial transient on ball and solid bearings. In: Proceedings of the MAG 1995, Alexandria, USA (1995)

Foiles, W.C., Allaire, P.E.: Nonlinear transient modeling of active magnetic bearing rotors during rotor drop on auxiliary bearings. In: Proceedings of MAG 1997, Alexandria, USA, pp. 154–163 (1997)

Sun, G., Palazzolo, A.B., Provenza, A., Montague, G.: Detailed ball bearing model for magnetic suspension auxiliary service. J. Sound Vib. 269(3), 933–963 (2004)

Helfert, M., Ernst, M., Nordmann, R., Aeschlimann, B.: High-speed video analysis of rotor-retainer-bearing-contacts due to failure of active magnetic bearings. In: Proceedings of the 10th International Symposium on Magnetic Bearings, Martigny, Switzerland (2006)

10.

Hawkins, L., Filatov, A., Imani, S., Prosser, D.: Test results and analytical predictions for rotor drop testing of an active magnetic bearing expander/generator. Trans. ASME J. Eng. Gas Turbines Power 129, 522–529 (2007)CrossRef

11.

Janse van Rensburg, J.J., van Schoor, G., van Vuuren, P.: The characterization of the severity of rotor delevitation events—a parametric study. In: Proceedings of the 13th International Symposium on Magnetic Bearings (ISMB 2013), Arlington, USA (2012)

12.

Janse van Rensburg, J.J., Vanek, C., Worlitz, F.: Backup bearing modelling for turbo machines with high axial and radial loads. In: Proceedings of the 14th International Symposium on Magnetic Bearings (ISMB 2014), Linz, Austria (2014)

13.

Collins, T., Masala, A., Shultz, R., Guo, Z.: Numerical and experimental results of auxiliary bearings testing on a high speed test rig. In: Proceedings of the 14th International Symposium on Magnetic Bearings (ISMB 2014), Linz, Austria (2014)

14.

Denk, J., Köhler, B.-E., Siegle, G., Siebke, P.: Landing tests with a 6300 rpm, 9 t AMB rotor in rolling element back-up bearings. In: Proceedings of the 14th International Symposium on Magnetic Bearings (ISMB 2014), Linz, Austria (2014)

15.

Siebke, P., Golbach, H.: A novel rolling element back-up bearing for a 9 t rotor application. In: Proceedings of the 14th International Symposium on Magnetic Bearings (ISMB 2014), Linz, Austria (2014)

16.

Siegl, G., Tzianetopoulou, T., Denk, J.: Simulation and experimental validation of a 9 ton AMB rotor landing in rolling element back-up bearings. In: Proceedings of the 14th International Symposium on Magnetic Bearings (ISMB 2014) (2014). Linz, Austria and the J. Jpn. Soc. Mech. Eng. Article ID: 15-00136 (2016)

17.

Yang, G., Shi, Z., Liu, X., Zhao, J.: Research and experiment of auxiliary bearings with no lubrication for helium blower of HTR-10. In: Proceedings of the 14th International Symposium on Magnetic Bearings (ISMB 2014), Linz, Austria (2014)

18.

Lahriri, S., Santos, I.F.: Theoretical modelling, analysis and validation of the shaft motion and dynamic forces during rotor–stator contact. J. Sound Vib. 332, 6359–6376 (2013)CrossRef

19.

Lee, J.L., Palazzolo, A.: Catcher bearing life prediction using a rainflow counting approach. Trans. ASME J. Tribol. 134(3), 031101 (2012)CrossRef

20.

Anders, J., Leslie, P., Stacke, M.L.-E.: Rotor drop simulations and validation with focus on internal contact mechanisms of hybrid ball bearings. Paper GT2013-95816, ASME/IGTI Turbo Expo, San Antonio, USA (2013)

21.

Keogh, P.S., Cole, M.O.T.: Rotor vibration with auxiliary bearing contact in magnetic bearing systems, Part I: synchronous dynamics. In: Proceedings of the Institution of Mechanical Engineers, Part C, vol. 217, pp. 377–392 (2003)

22.

Cole, M.O.T., Keogh, P.S.: Asynchronous periodic contact modes for rotor vibration within an annular clearance. In: Proceedings of the Institution of Mechanical Engineers, Part C, vol. 217, pp. 1101–1115 (2003)

23.

Ulbrich, H., Ginzinger, L.: Stabilization of a rubbing rotor using a robust feedback control, Paper-ID: 306. In: Proceedings of the 7th IFToMM Conference on Rotor Dynamics, Vienna, Austria (2006)

24.

Cade, I.S., Sahinkaya, M.N., Burrows, C.R., Keogh, P.S.: On the design of an active auxiliary bearing for rotor/magnetic bearing systems. In: Proceedings of the 11th International Symposium on Magnetic Bearings (ISMB 2011), Nara, Japan (2008)

25.

Keogh, P.S., Sahinkaya, M.N., Burrows, C.R., Cade, I.S.: Rotor/auxiliary bearing dynamic contact modes in magnetic bearing systems. In: Proceedings of the 11th International Symposium on Magnetic Bearings (ISMB 2011), Nara, Japan (2008)

26.

Li, P., Sahinkaya, M.N., Keogh, P.S.: Active touchdown bearing control for recovery of contact-free rotor levitation in AMB systems. In: Proceedings of the 14th International Symposium on Magnetic Bearings (ISMB 2014), Linz, Austria (2014)

27.

Saket, F.Y., Sahinkaya, M.N., Keogh, P.S.: Experimental assessment of touchdown bearing contact forces in magnetic bearing systems. In: 9th IFToMM International Conference on Rotor Dynamics, Milan, Italy (2014)

Titel: Active Control of Rotating Machinery Under Rotor-Stator Contact Conditions
verfasst von: Patrick S. Keogh
Chris Lusty
Nicola Y. Bailey
Fawaz Saket
Verlag: Springer International Publishing
Buch: Proceedings of the 10th International Conference on Rotor Dynamics – IFToMM
Print ISBN: 978-3-319-99269-3

Electronic ISBN: 978-3-319-99270-9

Copyright-Jahr: 2019
DOI: https://doi.org/10.1007/978-3-319-99270-9_8

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