A Presentation of Control Theory Applied to the Design of Controllable Segmented Gas Foil Bearings

Janus Walentin Jensen; Ilmar Ferreira Santos

doi:10.1007/978-3-031-32394-2_3

A Presentation of Control Theory Applied to the Design of Controllable Segmented Gas Foil Bearings

Janus Walentin Jensen, Ilmar Ferreira Santos^*

^*Corresponding author for this work

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

Abstract

With industry diverging away from the use of oil in the hopes of a more environmentally friendly production, the use of Gas Foil Bearings (GFBs) can facilitate an oil-free alternative for high-speed rotating light machinery. Currently, their application is, however, limited by their low load-bearing capability and low vibration damping. Hybridization has the possibility to mitigate these limitations. The system presented in this paper demonstrates the increased system capabilities through passive and active Hybrid Gas Foil Bearings (HGFB) with radial gas injection. The non-linear differential equations comprising the system, pressure states, foil deflections, rotor movements, and actuator position, are solved simultaneously with and without control feedback. The presented results comprise unbalance response waterfall diagrams.

Original language	English
Title of host publication	Advances in Active Bearings in Rotating Machinery. : Proceedings of The 1st Workshop on Active Bearings in Rotating Machinery (ABROM 2022)ABROM 2022
Editors	Athanasios Chasalevris, Carsten Proppe
Place of Publication	Cham
Publisher	Springer
Publication date	2023
Pages	27-43
ISBN (Print)	978-3-031-32393-5
ISBN (Electronic)	978-3-031-32394-2
DOIs	https://doi.org/10.1007/978-3-031-32394-2_3
Publication status	Published - 2023
Event	1st Workshop on Active Bearings in Rotating Machinery - Athens, Greece Duration: 29 Jun 2022 → 30 Jun 2022

Conference

Conference	1st Workshop on Active Bearings in Rotating Machinery
Country/Territory	Greece
City	Athens
Period	29/06/2022 → 30/06/2022

Series	Lecture Notes in Mechanical Engineering
ISSN	2195-4356

Keywords

Gas Foil Bearings
Injection
Control

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10.1007/978-3-031-32394-2_3

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Jensen, J. W., & Santos, I. F. (2023). A Presentation of Control Theory Applied to the Design of Controllable Segmented Gas Foil Bearings. In A. Chasalevris, & C. Proppe (Eds.), Advances in Active Bearings in Rotating Machinery. : Proceedings of The 1st Workshop on Active Bearings in Rotating Machinery (ABROM 2022)ABROM 2022 (pp. 27-43). Springer. https://doi.org/10.1007/978-3-031-32394-2_3

Jensen, Janus Walentin ; Santos, Ilmar Ferreira. / A Presentation of Control Theory Applied to the Design of Controllable Segmented Gas Foil Bearings. Advances in Active Bearings in Rotating Machinery. : Proceedings of The 1st Workshop on Active Bearings in Rotating Machinery (ABROM 2022)ABROM 2022. editor / Athanasios Chasalevris ; Carsten Proppe. Cham : Springer, 2023. pp. 27-43 (Lecture Notes in Mechanical Engineering).

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title = "A Presentation of Control Theory Applied to the Design of Controllable Segmented Gas Foil Bearings",

abstract = "With industry diverging away from the use of oil in the hopes of a more environmentally friendly production, the use of Gas Foil Bearings (GFBs) can facilitate an oil-free alternative for high-speed rotating light machinery. Currently, their application is, however, limited by their low load-bearing capability and low vibration damping. Hybridization has the possibility to mitigate these limitations. The system presented in this paper demonstrates the increased system capabilities through passive and active Hybrid Gas Foil Bearings (HGFB) with radial gas injection. The non-linear differential equations comprising the system, pressure states, foil deflections, rotor movements, and actuator position, are solved simultaneously with and without control feedback. The presented results comprise unbalance response waterfall diagrams.",

keywords = "Gas Foil Bearings, Injection, Control",

author = "Jensen, {Janus Walentin} and Santos, {Ilmar Ferreira}",

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doi = "10.1007/978-3-031-32394-2_3",

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editor = "Chasalevris, {Athanasios } and Proppe, {Carsten }",

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Jensen, JW & Santos, IF 2023, A Presentation of Control Theory Applied to the Design of Controllable Segmented Gas Foil Bearings. in A Chasalevris & C Proppe (eds), Advances in Active Bearings in Rotating Machinery. : Proceedings of The 1st Workshop on Active Bearings in Rotating Machinery (ABROM 2022)ABROM 2022. Springer, Cham, Lecture Notes in Mechanical Engineering, pp. 27-43, 1st Workshop on Active Bearings in Rotating Machinery, Athens, Greece, 29/06/2022. https://doi.org/10.1007/978-3-031-32394-2_3

A Presentation of Control Theory Applied to the Design of Controllable Segmented Gas Foil Bearings. / Jensen, Janus Walentin ; Santos, Ilmar Ferreira.
Advances in Active Bearings in Rotating Machinery. : Proceedings of The 1st Workshop on Active Bearings in Rotating Machinery (ABROM 2022)ABROM 2022. ed. / Athanasios Chasalevris; Carsten Proppe. Cham: Springer, 2023. p. 27-43 (Lecture Notes in Mechanical Engineering).

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

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T1 - A Presentation of Control Theory Applied to the Design of Controllable Segmented Gas Foil Bearings

AU - Jensen, Janus Walentin

AU - Santos, Ilmar Ferreira

PY - 2023

Y1 - 2023

N2 - With industry diverging away from the use of oil in the hopes of a more environmentally friendly production, the use of Gas Foil Bearings (GFBs) can facilitate an oil-free alternative for high-speed rotating light machinery. Currently, their application is, however, limited by their low load-bearing capability and low vibration damping. Hybridization has the possibility to mitigate these limitations. The system presented in this paper demonstrates the increased system capabilities through passive and active Hybrid Gas Foil Bearings (HGFB) with radial gas injection. The non-linear differential equations comprising the system, pressure states, foil deflections, rotor movements, and actuator position, are solved simultaneously with and without control feedback. The presented results comprise unbalance response waterfall diagrams.

AB - With industry diverging away from the use of oil in the hopes of a more environmentally friendly production, the use of Gas Foil Bearings (GFBs) can facilitate an oil-free alternative for high-speed rotating light machinery. Currently, their application is, however, limited by their low load-bearing capability and low vibration damping. Hybridization has the possibility to mitigate these limitations. The system presented in this paper demonstrates the increased system capabilities through passive and active Hybrid Gas Foil Bearings (HGFB) with radial gas injection. The non-linear differential equations comprising the system, pressure states, foil deflections, rotor movements, and actuator position, are solved simultaneously with and without control feedback. The presented results comprise unbalance response waterfall diagrams.

KW - Gas Foil Bearings

KW - Injection

KW - Control

U2 - 10.1007/978-3-031-32394-2_3

DO - 10.1007/978-3-031-32394-2_3

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T3 - Lecture Notes in Mechanical Engineering

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EP - 43

BT - Advances in Active Bearings in Rotating Machinery.

A2 - Chasalevris, Athanasios

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Y2 - 29 June 2022 through 30 June 2022

ER -

Jensen JW , Santos IF. A Presentation of Control Theory Applied to the Design of Controllable Segmented Gas Foil Bearings. In Chasalevris A, Proppe C, editors, Advances in Active Bearings in Rotating Machinery. : Proceedings of The 1st Workshop on Active Bearings in Rotating Machinery (ABROM 2022)ABROM 2022. Cham: Springer. 2023. p. 27-43. (Lecture Notes in Mechanical Engineering). doi: 10.1007/978-3-031-32394-2_3

A Presentation of Control Theory Applied to the Design of Controllable Segmented Gas Foil Bearings

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