ACTIVE ROTOR CONTROLLER DESIGN FOR VIBRATION AND BEND MITIGATION UTILIZING ACTIVE MAGNETIC BEARINGS AND INTERNAL SHAFT ACTUATION

Gauthier Fieux; Nicola Bailey; Patrick Keogh

doi:10.1115/GT2022-82528

ACTIVE ROTOR CONTROLLER DESIGN FOR VIBRATION AND BEND MITIGATION UTILIZING ACTIVE MAGNETIC BEARINGS AND INTERNAL SHAFT ACTUATION

Gauthier Fieux, Nicola Bailey, Patrick Keogh

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

Abstract

Strategies are required to reduce vibrations in machines that use rotor systems, as these disturbances reduce the life and quality of the machine. A novel low-frequency on-board counter-bend actuator topology has been designed in order to control high frequency vibrations by taking advantage of synchronous forces from the rotating frame of a rotor supported by Active Magnetic Bearings (AMBs). The AMBs ensure in return stable contactfree levitation of the rotor. A complete model of the rotor system is established, based on a finite element representation of the rotor. The feedback control forces of the AMBs are described to account for the non-collocation of the sensor and actuation, and the PD controller gains are chosen using the sensitivity function. The lowest frequency mode of the operating range is located at 2,700 RPM, and time domain analysis shows that the application of symmetric 80 N.m counter-bend moments on the rotor coupling flanges can reduce the vibration amplitude by 88% at this rotation speed.

Original language	English
Title of host publication	Structures and Dynamics - Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration
Publisher	The American Society of Mechanical Engineers(ASME)
ISBN (Electronic)	9780791886076
DOIs	https://doi.org/10.1115/GT2022-82528
Publication status	E-pub ahead of print - 28 Oct 2022
Event	ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition, GT 2022 - Rotterdam, Netherlands Duration: 13 Jun 2022 → 17 Jun 2022

Publication series

Name	Proceedings of the ASME Turbo Expo
Volume	8-B

Conference

Conference	ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition, GT 2022
Country/Territory	Netherlands
City	Rotterdam
Period	13/06/22 → 17/06/22

Bibliographical note

Funding Information:
This research was funded by the EPSRC Future Metrology Hub, EP/P006930/1 and a University of Bath URS award for Gauthier Fieux’s PhD study.

ASJC Scopus subject areas

General Engineering

Access to Document

10.1115/GT2022-82528

Cite this

Fieux, G., Bailey, N., & Keogh, P. (2022). ACTIVE ROTOR CONTROLLER DESIGN FOR VIBRATION AND BEND MITIGATION UTILIZING ACTIVE MAGNETIC BEARINGS AND INTERNAL SHAFT ACTUATION. In Structures and Dynamics - Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration Article V08BT26A010 (Proceedings of the ASME Turbo Expo; Vol. 8-B). The American Society of Mechanical Engineers(ASME). Advance online publication. https://doi.org/10.1115/GT2022-82528

ACTIVE ROTOR CONTROLLER DESIGN FOR VIBRATION AND BEND MITIGATION UTILIZING ACTIVE MAGNETIC BEARINGS AND INTERNAL SHAFT ACTUATION. / Fieux, Gauthier; Bailey, Nicola; Keogh, Patrick.
Structures and Dynamics - Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration. The American Society of Mechanical Engineers(ASME), 2022. V08BT26A010 (Proceedings of the ASME Turbo Expo; Vol. 8-B).

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

Fieux, G, Bailey, N & Keogh, P 2022, ACTIVE ROTOR CONTROLLER DESIGN FOR VIBRATION AND BEND MITIGATION UTILIZING ACTIVE MAGNETIC BEARINGS AND INTERNAL SHAFT ACTUATION. in Structures and Dynamics - Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration., V08BT26A010, Proceedings of the ASME Turbo Expo, vol. 8-B, The American Society of Mechanical Engineers(ASME), ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition, GT 2022, Rotterdam, Netherlands, 13/06/22. https://doi.org/10.1115/GT2022-82528

Fieux G, Bailey N, Keogh P. ACTIVE ROTOR CONTROLLER DESIGN FOR VIBRATION AND BEND MITIGATION UTILIZING ACTIVE MAGNETIC BEARINGS AND INTERNAL SHAFT ACTUATION. In Structures and Dynamics - Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration. The American Society of Mechanical Engineers(ASME). 2022. V08BT26A010. (Proceedings of the ASME Turbo Expo). Epub 2022 Oct 28. doi: 10.1115/GT2022-82528

Fieux, Gauthier ; Bailey, Nicola ; Keogh, Patrick. / ACTIVE ROTOR CONTROLLER DESIGN FOR VIBRATION AND BEND MITIGATION UTILIZING ACTIVE MAGNETIC BEARINGS AND INTERNAL SHAFT ACTUATION. Structures and Dynamics - Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration. The American Society of Mechanical Engineers(ASME), 2022. (Proceedings of the ASME Turbo Expo).

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abstract = "Strategies are required to reduce vibrations in machines that use rotor systems, as these disturbances reduce the life and quality of the machine. A novel low-frequency on-board counter-bend actuator topology has been designed in order to control high frequency vibrations by taking advantage of synchronous forces from the rotating frame of a rotor supported by Active Magnetic Bearings (AMBs). The AMBs ensure in return stable contactfree levitation of the rotor. A complete model of the rotor system is established, based on a finite element representation of the rotor. The feedback control forces of the AMBs are described to account for the non-collocation of the sensor and actuation, and the PD controller gains are chosen using the sensitivity function. The lowest frequency mode of the operating range is located at 2,700 RPM, and time domain analysis shows that the application of symmetric 80 N.m counter-bend moments on the rotor coupling flanges can reduce the vibration amplitude by 88% at this rotation speed.",

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N2 - Strategies are required to reduce vibrations in machines that use rotor systems, as these disturbances reduce the life and quality of the machine. A novel low-frequency on-board counter-bend actuator topology has been designed in order to control high frequency vibrations by taking advantage of synchronous forces from the rotating frame of a rotor supported by Active Magnetic Bearings (AMBs). The AMBs ensure in return stable contactfree levitation of the rotor. A complete model of the rotor system is established, based on a finite element representation of the rotor. The feedback control forces of the AMBs are described to account for the non-collocation of the sensor and actuation, and the PD controller gains are chosen using the sensitivity function. The lowest frequency mode of the operating range is located at 2,700 RPM, and time domain analysis shows that the application of symmetric 80 N.m counter-bend moments on the rotor coupling flanges can reduce the vibration amplitude by 88% at this rotation speed.

AB - Strategies are required to reduce vibrations in machines that use rotor systems, as these disturbances reduce the life and quality of the machine. A novel low-frequency on-board counter-bend actuator topology has been designed in order to control high frequency vibrations by taking advantage of synchronous forces from the rotating frame of a rotor supported by Active Magnetic Bearings (AMBs). The AMBs ensure in return stable contactfree levitation of the rotor. A complete model of the rotor system is established, based on a finite element representation of the rotor. The feedback control forces of the AMBs are described to account for the non-collocation of the sensor and actuation, and the PD controller gains are chosen using the sensitivity function. The lowest frequency mode of the operating range is located at 2,700 RPM, and time domain analysis shows that the application of symmetric 80 N.m counter-bend moments on the rotor coupling flanges can reduce the vibration amplitude by 88% at this rotation speed.

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ACTIVE ROTOR CONTROLLER DESIGN FOR VIBRATION AND BEND MITIGATION UTILIZING ACTIVE MAGNETIC BEARINGS AND INTERNAL SHAFT ACTUATION

Abstract

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Bibliographical note

ASJC Scopus subject areas

Access to Document

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