This paper deals with the experimental analysis of the dynamic characteristics of a foil thrust bearing (FTB) designed according to specifications given by NASA scientists in 2009 (Dykas et al., 2009, “Design, Fabrication, and Performance of Foil Gas Thrust Bearings for Microturbomachinery Applications,” ASME J. Eng. Gas Turbines Power, 131(1), p. 012301). The present work details the new configuration of the same test rig that was used to test start-up characteristics of the aforementioned bearing (Balducchi et al., 2013, “Experimental Analysis of the Start-Up Torque of a Mildly Loaded Foil Thrust Bearing,” ASME J. Tribol., 135(3), p. 031703). The rig has been reconfigured to test dynamic characteristics. The dynamic characteristics of the bump foil structure were measured for static loads comprised between 30 N and 150 N while measurements for the FTB were performed at 35 krpm for 30 N, 60 N, and 90 N. Excitation frequencies were comprised between 150 Hz and 750 Hz. Results showed that the dynamic stiffness of the FTB increase with excitation frequency while the equivalent damping decreases. Both stiffness and damping increase with the static load but are smaller at 35 krpm compared to 0 rpm.
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Space Propulsion Division,
e-mail: romain.gauthier@snecma.fr
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April 2015
Research-Article
Experimental Analysis of the Dynamic Characteristics of a Foil Thrust Bearing
Franck Balducchi,
Franck Balducchi
Institut PPRIME
,UPR CNRS 3346
,Futuroscope Chasseneuil 86962
, France
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Mihai Arghir,
Mihai Arghir
1
Fellow ASME
e-mail: mihai.arghir@univ-poitiers.fr
Institut PPRIME
,UPR CNRS 3346
,Université de Poitiers, ISAE ENSMA
,SP2MI, 11 Bd Pierre et Marie Curie, BP 30179
,Futuroscope Chasseneuil 86962
, France
e-mail: mihai.arghir@univ-poitiers.fr
1Corresponding author.
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Romain Gauthier
Space Propulsion Division,
e-mail: romain.gauthier@snecma.fr
Romain Gauthier
SNECMA
,Space Propulsion Division,
Forêt de Vernon - BP 802
,Vernon 27208
, France
e-mail: romain.gauthier@snecma.fr
Search for other works by this author on:
Franck Balducchi
Institut PPRIME
,UPR CNRS 3346
,Futuroscope Chasseneuil 86962
, France
Mihai Arghir
Fellow ASME
e-mail: mihai.arghir@univ-poitiers.fr
Institut PPRIME
,UPR CNRS 3346
,Université de Poitiers, ISAE ENSMA
,SP2MI, 11 Bd Pierre et Marie Curie, BP 30179
,Futuroscope Chasseneuil 86962
, France
e-mail: mihai.arghir@univ-poitiers.fr
Romain Gauthier
SNECMA
,Space Propulsion Division,
Forêt de Vernon - BP 802
,Vernon 27208
, France
e-mail: romain.gauthier@snecma.fr
1Corresponding author.
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received August 19, 2014; final manuscript received January 19, 2015; published online February 11, 2015. Assoc. Editor: Bugra Ertas.
J. Tribol. Apr 2015, 137(2): 021703 (9 pages)
Published Online: April 1, 2015
Article history
Received:
August 19, 2014
Revision Received:
January 19, 2015
Online:
February 11, 2015
Citation
Balducchi, F., Arghir, M., and Gauthier, R. (April 1, 2015). "Experimental Analysis of the Dynamic Characteristics of a Foil Thrust Bearing." ASME. J. Tribol. April 2015; 137(2): 021703. https://doi.org/10.1115/1.4029643
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