Top

Published in:

2015 | OriginalPaper | Chapter

A Contact Event Model for an AMB-supported Rotor

Authors : Oskari Halminen, Antti Kärkkäinen, Jussi Sopanen, Aki Mikkola

Published in: Proceedings of the 9th IFToMM International Conference on Rotor Dynamics

Publisher: Springer International Publishing

Activate our intelligent search to find suitable subject content or patents.

search-config

AI-assisted search

Off

Abstract

Active magnetic bearings (AMBs) offer considerable benefits compared to conventional bearings. On the other hand, AMBs require backup bearings to avoid damage resulting from a failure in the component itself, in the power system, or in the control system. During a rotor-bearing contact event, the structure of the backup bearings has an impact on the dynamic actions of the rotor. In this paper, the dynamics of an AMB-supported rotor during contact with backup bearings is studied with a simulation model. Modeling of the backup bearings is done using a comprehensive cageless ball bearing model, which includes the effect of misalignment. The elasticity of the rotor is described using the finite element method. Verification of the model for misaligned cageless ball bearings is done by comparing the simulated results to measurements. The verified model of the backup bearings is found to correspond to the features of a real system.

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

über 102.000 Bücher
über 537 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Finance + Banking
Management + Führung
Marketing + Vertrieb
Maschinenbau + Werkstoffe
Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

inform now

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

über 67.000 Bücher
über 390 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Maschinenbau + Werkstoffe

Jetzt Wissensvorsprung sichern!

inform now

previous chapter Experimental Assessment of Touchdown Bearing Contact Forces in Magnetic Bearing Systems

next chapter Internal Sensing and Actuation Strategies for Smart Machine Rotors

Ishii T, Kirk RG (1996) Transient response technique applied to active magnetic bearing machinery during rotor drop. J Vibr Acoust Trans ASME 118(2):154–163CrossRef

Schmied J, Pradetto JC, (1992,) Behavior of a one ton rotor being dropped into auxiliary bearings. In: Proceedings of the 3rd international symposium on magnetic bearings, pp 145–156

Zeng S (2002) Motion of AMB rotor in backup bearings. J Vibr Acoust Trans ASME 124(3):460–464CrossRef

Cole MOT, Keogh PS, Burrows CR (2002) The dynamic behavior of a rolling element auxiliary bearing following rotor impact. J Tribol Trans ASME 124(2):406–413CrossRef

Kärkkäinen A, Sopanen J, Mikkola A (2007) Dynamic simulation of a flexible rotor during drop on retainer bearings. J Sound Vib 306(3–5):601–617CrossRef

Kärkkäinen A, Helfert M, Aeschlimann B, Mikkola A (2008) Dynamic analysis of rotor system with misaligned retainer bearings. J Tribol Trans ASME 130(2):021102

Kärkkäinen A (2007) Dynamic simulations of rotors during drop on retainer bearings. Ph.D., Lappeenranta University of Technology, Lappeenranta

Nelson HD, McVaugh JM (1976) The dynamics of rotor bearing systems using finite elements. J Manuf Sci Eng 98:593–600

Bathe KJ (1996) Finite element procedures. Prentice Hall, New Jersey

10.

Chen WJ, Gunter EJ (2005) Introduction to dynamics of rotor-bearing systems. Trafford Publishing, Victoria

11.

Genta G (1998) Vibration of structures and machines. Springer, New York

12.

Ewins DJ (2000) Modal testing: theory, practice and application. Research Studies Press Ltd, Somerset

13.

Sopanen J, Mikkola A (2003) Dynamic model of a deep-groove ball bearing including localized and distributed defects. Part 1: theory. Proc Inst Mech Eng Part K J Multi Body Dyn 217(3):201–211

14.

Hamrock BJ (1994) Fundamentals of fluid film lubrication. McGraw-Hill, New York

15.

Olsson H, Astrom KJ, de Wit CC, Gafvert M, Lischinsky P (1998) Friction models and friction compensation. Eur J Control 4(3):176–195CrossRefMATH

16.

Helfert M, Ernst M, Nordmann R, Aeschlimann B (2006) High-speed video analysis of rotor-retainer-bearing-contacts due to failure of active magnetic bearings. In: Proceedings of 10th international symposium on magnetic bearings

17.

Schwab AL, Meijaard JP, Meijers P (2002) A comparison of revolute joint clearance models in the dynamic analysis of rigid and elastic mechanical systems. Mech Mach Theory 37(9):895–913CrossRefMATH

18.

Fumagalli MA (1997) Modelling and measurement analysis of the contact interaction between a high speed rotor and its stator. Modelling and measurement analysis of the contact interaction between a high speed rotor and its stator

19.

Hairer E, Norsett SP, Wanner G (1993) Solving ordinary differential equations I: nonstiff problems. Springer, New YorkMATH

Title: A Contact Event Model for an AMB-supported Rotor
Authors: Oskari Halminen
Antti Kärkkäinen
Jussi Sopanen
Aki Mikkola
Publisher: Springer International Publishing
Book: Proceedings of the 9th IFToMM International Conference on Rotor Dynamics
Print ISBN: 978-3-319-06589-2

Electronic ISBN: 978-3-319-06590-8

Copyright Year: 2015
DOI: https://doi.org/10.1007/978-3-319-06590-8_124

Springer Professional

Abstract

Please log in to get access to your license.

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Wirtschaft+Technik"

Springer Professional "Technik"

Premium Partners