Experimental and Theoretical Comparison Between the Ball and Pinned Bearing Working as Backup Bearing for Magnetically Levitated Rotors

Cesar Augusto Fonseca; Hans Ingo Weber; Ilmar Santos

doi:10.1007/978-3-319-99262-4_17

Experimental and Theoretical Comparison Between the Ball and Pinned Bearing Working as Backup Bearing for Magnetically Levitated Rotors

Cesar Augusto Fonseca
, Hans Ingo Weber
, Ilmar Santos

Technical University of Denmark
Pontifical Catholic University of Rio de Janeiro

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

The papers focuses on the modelling and experimental validation the vibro-impact dynamic behaviour of rotors interacting with two types of backup bearings, i.e. one pinned backup bearing with polymeric pins (original contribution to the problem) and another common ball bearing (conventional). The impact forces are modelled using Hunt and Crossley approach. The parameters of the constitutive equation responsible for describing the contact forces are a priori identified in auxiliary tests. The vibro-impact model is built by coupling the nonlinear contact forces with the rotor-bearing system dynamics and the theoretical results are obtained by integrating the coupled equations in time. A fully-instrumented test bench is designed, built and used to validate the experimental results. The effectiveness of the pinned bearing is evaluated in terms of orbits and maximum vibration.

Original language	English
Title of host publication	Proceedings of the 10th International Conference on Rotor Dynamics (IFToMM 2018)
Editors	Katia Lucchesi Cavalca, Hans Ingo Weber
Volume	1
Publisher	Springer
Publication date	2018
Pages	236-251
ISBN (Print)	978-3-319-99261-7
ISBN (Electronic)	978-3-319-99262-4
DOIs	https://doi.org/10.1007/978-3-319-99262-4_17
Publication status	Published - 2018
Event	10th International Conference on Rotor Dynamics - Rio de Janeiro, Brazil Duration: 23 Sept 2018 → 27 Sept 2018 Conference number: 10

Conference

Conference	10th International Conference on Rotor Dynamics
Number	10
Country/Territory	Brazil
City	Rio de Janeiro
Period	23/09/2018 → 27/09/2018

Series	Mechanisms and Machine Science
Volume	60
ISSN	2211-0984

Keywords

Backup bearings
Nonlinear dynamics
Impacts

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10.1007/978-3-319-99262-4_17

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Fonseca, C. A., Weber, H. I., & Santos, I. (2018). Experimental and Theoretical Comparison Between the Ball and Pinned Bearing Working as Backup Bearing for Magnetically Levitated Rotors. In K. Lucchesi Cavalca, & H. Ingo Weber (Eds.), Proceedings of the 10th International Conference on Rotor Dynamics (IFToMM 2018) (Vol. 1, pp. 236-251). Springer. https://doi.org/10.1007/978-3-319-99262-4_17

Fonseca, Cesar Augusto ; Weber, Hans Ingo ; Santos, Ilmar. / Experimental and Theoretical Comparison Between the Ball and Pinned Bearing Working as Backup Bearing for Magnetically Levitated Rotors. Proceedings of the 10th International Conference on Rotor Dynamics (IFToMM 2018). editor / Katia Lucchesi Cavalca ; Hans Ingo Weber. Vol. 1 Springer, 2018. pp. 236-251 (Mechanisms and Machine Science, Vol. 60).

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title = "Experimental and Theoretical Comparison Between the Ball and Pinned Bearing Working as Backup Bearing for Magnetically Levitated Rotors",

abstract = "The papers focuses on the modelling and experimental validation the vibro-impact dynamic behaviour of rotors interacting with two types of backup bearings, i.e. one pinned backup bearing with polymeric pins (original contribution to the problem) and another common ball bearing (conventional). The impact forces are modelled using Hunt and Crossley approach. The parameters of the constitutive equation responsible for describing the contact forces are a priori identified in auxiliary tests. The vibro-impact model is built by coupling the nonlinear contact forces with the rotor-bearing system dynamics and the theoretical results are obtained by integrating the coupled equations in time. A fully-instrumented test bench is designed, built and used to validate the experimental results. The effectiveness of the pinned bearing is evaluated in terms of orbits and maximum vibration.",

keywords = "Backup bearings, Nonlinear dynamics, Impacts",

author = "Fonseca, \{Cesar Augusto\} and Weber, \{Hans Ingo\} and Ilmar Santos",

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editor = "\{Lucchesi Cavalca\}, \{Katia \} and \{Ingo Weber\}, \{Hans \}",

booktitle = "Proceedings of the 10th International Conference on Rotor Dynamics (IFToMM 2018)",

note = "10th International Conference on Rotor Dynamics ; Conference date: 23-09-2018 Through 27-09-2018",

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Fonseca, CA, Weber, HI & Santos, I 2018, Experimental and Theoretical Comparison Between the Ball and Pinned Bearing Working as Backup Bearing for Magnetically Levitated Rotors. in K Lucchesi Cavalca & H Ingo Weber (eds), Proceedings of the 10th International Conference on Rotor Dynamics (IFToMM 2018). vol. 1, Springer, Mechanisms and Machine Science, vol. 60, pp. 236-251, 10th International Conference on Rotor Dynamics, Rio de Janeiro, Brazil, 23/09/2018. https://doi.org/10.1007/978-3-319-99262-4_17

Experimental and Theoretical Comparison Between the Ball and Pinned Bearing Working as Backup Bearing for Magnetically Levitated Rotors. / Fonseca, Cesar Augusto; Weber, Hans Ingo; Santos, Ilmar.
Proceedings of the 10th International Conference on Rotor Dynamics (IFToMM 2018). ed. / Katia Lucchesi Cavalca; Hans Ingo Weber. Vol. 1 Springer, 2018. p. 236-251 (Mechanisms and Machine Science, Vol. 60).

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - Experimental and Theoretical Comparison Between the Ball and Pinned Bearing Working as Backup Bearing for Magnetically Levitated Rotors

AU - Fonseca, Cesar Augusto

AU - Weber, Hans Ingo

AU - Santos, Ilmar

N1 - Conference code: 10

PY - 2018

Y1 - 2018

N2 - The papers focuses on the modelling and experimental validation the vibro-impact dynamic behaviour of rotors interacting with two types of backup bearings, i.e. one pinned backup bearing with polymeric pins (original contribution to the problem) and another common ball bearing (conventional). The impact forces are modelled using Hunt and Crossley approach. The parameters of the constitutive equation responsible for describing the contact forces are a priori identified in auxiliary tests. The vibro-impact model is built by coupling the nonlinear contact forces with the rotor-bearing system dynamics and the theoretical results are obtained by integrating the coupled equations in time. A fully-instrumented test bench is designed, built and used to validate the experimental results. The effectiveness of the pinned bearing is evaluated in terms of orbits and maximum vibration.

AB - The papers focuses on the modelling and experimental validation the vibro-impact dynamic behaviour of rotors interacting with two types of backup bearings, i.e. one pinned backup bearing with polymeric pins (original contribution to the problem) and another common ball bearing (conventional). The impact forces are modelled using Hunt and Crossley approach. The parameters of the constitutive equation responsible for describing the contact forces are a priori identified in auxiliary tests. The vibro-impact model is built by coupling the nonlinear contact forces with the rotor-bearing system dynamics and the theoretical results are obtained by integrating the coupled equations in time. A fully-instrumented test bench is designed, built and used to validate the experimental results. The effectiveness of the pinned bearing is evaluated in terms of orbits and maximum vibration.

KW - Backup bearings

KW - Nonlinear dynamics

KW - Impacts

U2 - 10.1007/978-3-319-99262-4_17

DO - 10.1007/978-3-319-99262-4_17

M3 - Article in proceedings

SN - 978-3-319-99261-7

VL - 1

T3 - Mechanisms and Machine Science

SP - 236

EP - 251

BT - Proceedings of the 10th International Conference on Rotor Dynamics (IFToMM 2018)

A2 - Lucchesi Cavalca, Katia

A2 - Ingo Weber, Hans

PB - Springer

T2 - 10th International Conference on Rotor Dynamics

Y2 - 23 September 2018 through 27 September 2018

ER -

Fonseca CA, Weber HI, Santos I. Experimental and Theoretical Comparison Between the Ball and Pinned Bearing Working as Backup Bearing for Magnetically Levitated Rotors. In Lucchesi Cavalca K, Ingo Weber H, editors, Proceedings of the 10th International Conference on Rotor Dynamics (IFToMM 2018). Vol. 1. Springer. 2018. p. 236-251. (Mechanisms and Machine Science, Vol. 60). doi: 10.1007/978-3-319-99262-4_17

Experimental and Theoretical Comparison Between the Ball and Pinned Bearing Working as Backup Bearing for Magnetically Levitated Rotors

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