Experimental analysis of a rigid rotor supported on aerodynamic foil journal bearings
Aerodynamic foil bearings are highly non linear components used or intending to be used for supporting high speed rotors (>30 krpm) of low size rotating machines (<400 kW). The non linear character comes from the highly deformable structure of the bearing made of thin steel sheets and from the...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2014-01-01
|
| Series: | MATEC Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/matecconf/20141603002 |
| _version_ | 1818884408131715072 |
|---|---|
| author | Arghir M. Balducchi F. Pilavoine A. |
| author_facet | Arghir M. Balducchi F. Pilavoine A. |
| author_sort | Arghir M. |
| collection | DOAJ |
| description | Aerodynamic foil bearings are highly non linear components used or intending to be used for supporting high speed rotors (>30 krpm) of low size rotating machines (<400 kW). The non linear character comes from the highly deformable structure of the bearing made of thin steel sheets and from the Coulomb friction forces arising during dynamic displacements. The present work shows the non linear response of a rigid rotor supported by a pair of such bearings and entrained at 82 krpm. The measurements performed during the coast down revealed sub synchronous and asynchronous vibrations of the rotor and their multiples. A simplified theoretical model reproduces qualitatively some of these non linear characteristics. |
| first_indexed | 2024-12-19T15:49:04Z |
| format | Article |
| id | doaj.art-44c6277cea1f497b8c855616bb3a2ba7 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-19T15:49:04Z |
| publishDate | 2014-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-44c6277cea1f497b8c855616bb3a2ba72022-12-21T20:15:15ZengEDP SciencesMATEC Web of Conferences2261-236X2014-01-01160300210.1051/matecconf/20141603002matecconf_csndd2014_03002Experimental analysis of a rigid rotor supported on aerodynamic foil journal bearingsArghir M.0Balducchi F.1Pilavoine A.2Institut Pprime, UPR CNRS 3346, Université de PoitiersInstitut Pprime, UPR CNRS 3346, Université de PoitiersENSMA ISAE PoitiersAerodynamic foil bearings are highly non linear components used or intending to be used for supporting high speed rotors (>30 krpm) of low size rotating machines (<400 kW). The non linear character comes from the highly deformable structure of the bearing made of thin steel sheets and from the Coulomb friction forces arising during dynamic displacements. The present work shows the non linear response of a rigid rotor supported by a pair of such bearings and entrained at 82 krpm. The measurements performed during the coast down revealed sub synchronous and asynchronous vibrations of the rotor and their multiples. A simplified theoretical model reproduces qualitatively some of these non linear characteristics.http://dx.doi.org/10.1051/matecconf/20141603002 |
| spellingShingle | Arghir M. Balducchi F. Pilavoine A. Experimental analysis of a rigid rotor supported on aerodynamic foil journal bearings MATEC Web of Conferences |
| title | Experimental analysis of a rigid rotor supported on aerodynamic foil journal bearings |
| title_full | Experimental analysis of a rigid rotor supported on aerodynamic foil journal bearings |
| title_fullStr | Experimental analysis of a rigid rotor supported on aerodynamic foil journal bearings |
| title_full_unstemmed | Experimental analysis of a rigid rotor supported on aerodynamic foil journal bearings |
| title_short | Experimental analysis of a rigid rotor supported on aerodynamic foil journal bearings |
| title_sort | experimental analysis of a rigid rotor supported on aerodynamic foil journal bearings |
| url | http://dx.doi.org/10.1051/matecconf/20141603002 |
| work_keys_str_mv | AT arghirm experimentalanalysisofarigidrotorsupportedonaerodynamicfoiljournalbearings AT balducchif experimentalanalysisofarigidrotorsupportedonaerodynamicfoiljournalbearings AT pilavoinea experimentalanalysisofarigidrotorsupportedonaerodynamicfoiljournalbearings |