Abstract
Hydrodynamic journal bearings induced serious shaft vibrations called oil whirl. Since they often give severe damages to the mechanical systems, it is important to fully understand the phenomenon to avoid the occurrence by the proper bearing design. This study theoretically and experimentally investigated both cylindrical and conical whirl instabilities, which can be appeared in journal bearings, and their relation was discussed. As the result, the span length of the bearings had a significant effect on the vibration mode. The transitional state in which the cylindrical and conical whirl instabilities alternately appeared was observed.
| Original language | English |
|---|---|
| Title of host publication | Recent Development in Machining, Materials and Mechanical Technologies |
| Publisher | Trans Tech Publications Ltd |
| Pages | 688-693 |
| Number of pages | 6 |
| Volume | 656-657 |
| ISBN (Print) | 9783038354956 |
| DOIs | |
| Publication status | Published - 2015 |
| Externally published | Yes |
| Event | International Conference on Machining, Materials and Mechanical Technologies, IC3MT 2014 - Taipei City, Taiwan, Province of China Duration: 2014 Aug 31 → 2014 Sep 5 |
Publication series
| Name | Key Engineering Materials |
|---|---|
| Volume | 656-657 |
| ISSN (Print) | 10139826 |
Other
| Other | International Conference on Machining, Materials and Mechanical Technologies, IC3MT 2014 |
|---|---|
| Country | Taiwan, Province of China |
| City | Taipei City |
| Period | 14/8/31 → 14/9/5 |
Fingerprint
Keywords
- Conical whirl instability
- Cylindrical whirl instability
- Hydrodynamic bearings
- Journal bearing
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
Cite this
Investigations of cylindrical and conical whirl instabilities on hydrodynamic journal bearings. / Miyanaga, Norifumi; Tomioka, Jun.
Recent Development in Machining, Materials and Mechanical Technologies. Vol. 656-657 Trans Tech Publications Ltd, 2015. p. 688-693 (Key Engineering Materials; Vol. 656-657).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Investigations of cylindrical and conical whirl instabilities on hydrodynamic journal bearings
AU - Miyanaga, Norifumi
AU - Tomioka, Jun
PY - 2015
Y1 - 2015
N2 - Hydrodynamic journal bearings induced serious shaft vibrations called oil whirl. Since they often give severe damages to the mechanical systems, it is important to fully understand the phenomenon to avoid the occurrence by the proper bearing design. This study theoretically and experimentally investigated both cylindrical and conical whirl instabilities, which can be appeared in journal bearings, and their relation was discussed. As the result, the span length of the bearings had a significant effect on the vibration mode. The transitional state in which the cylindrical and conical whirl instabilities alternately appeared was observed.
AB - Hydrodynamic journal bearings induced serious shaft vibrations called oil whirl. Since they often give severe damages to the mechanical systems, it is important to fully understand the phenomenon to avoid the occurrence by the proper bearing design. This study theoretically and experimentally investigated both cylindrical and conical whirl instabilities, which can be appeared in journal bearings, and their relation was discussed. As the result, the span length of the bearings had a significant effect on the vibration mode. The transitional state in which the cylindrical and conical whirl instabilities alternately appeared was observed.
KW - Conical whirl instability
KW - Cylindrical whirl instability
KW - Hydrodynamic bearings
KW - Journal bearing
UR - http://www.scopus.com/inward/record.url?scp=84952362248&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84952362248&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.656-657.688
DO - 10.4028/www.scientific.net/KEM.656-657.688
M3 - Conference contribution
AN - SCOPUS:84952362248
SN - 9783038354956
VL - 656-657
T3 - Key Engineering Materials
SP - 688
EP - 693
BT - Recent Development in Machining, Materials and Mechanical Technologies
PB - Trans Tech Publications Ltd
ER -