As described in Part I (Zhang et al., “Performance Analysis of Oil Lubricated Foil Bearing With Flexible Supported Back Spring Structure—Part I: Model Development and Numerical Investigation”, ASME J. Eng. Gas Turbines Power, 136(11), p. 112501), a new type of multileaf oil lubricated foil bearing with flexible supported back spring structure was proposed and the characteristics were obtained by theoretical analysis and numerical simulation. Until now, nearly no paper about the modeling method and experimental verification for this type foil bearing published. So it is necessary to study the performance of this kind bearing by experiments. The experimental rig for the static and dynamic characteristics of the bearing was installed and the experiments were carried out. The stiffness of the back supported spring was measured. By employing the dynamic coefficients identification algorithm for oil foil bearing, the data acquisition delay was compensated. The load capacity, stiffness coefficients and damping coefficients were obtained. The load capacity resulting from the experiment was coincided with the theoretical simulation well. The stiffness and damping coefficients from the experiments had the similar tendency with those from the theoretical analysis. The stiffness coefficients obtained from experiments were coincided well with the numerical simulation results, and the difference of damping coefficients was a little bigger.

References

References
1.
Zhang
,
G.
,
Liang
,
X.
,
Wang
,
Y.
, and
Liu
,
Z.
,
2014
, “
Performance Analysis of Oil Lubricated Foil Bearing With Flexible Supported Back Spring Structure—Part I: Model Development and Numerical Investigation
,”
ASME J. Eng. Gas Turbines Power
,
136
(
11
), p.
112501
.10.1115/1.4027602
2.
Radil
,
K.
, and
Zeszotek
,
M.
,
2004
, “
An Experimental Investigation Into the Temperature Profile of a Compliant Foil Air Bearing
,”
Tribol. Trans.
,
47
(
4
), pp.
470
479
.10.1080/05698190490501995
3.
Kim
,
D.
, and
Park
,
S.
,
2009
, “
Hydrostatic Air Foil Bearings: Analytical and Experimental Investigation
,”
Tribol. Int.
,
42
(
3
), pp.
413
425
.10.1016/j.triboint.2008.08.001
4.
Song
,
J.
, and
Kim
,
D.
,
2007
, “
Foil Gas Bearing With Compression Springs: Analyses and Experiments
,”
ASME J. Tribol.
,
129
(
3
), pp.
628
639
.10.1115/1.2736455
5.
San Andrés
,
L.
,
Chirathadam
,
T. A.
, and
Kim
,
T. H.
,
2010
, “
Measurement of Structural Stiffness and Damping Coefficients in a Metal Mesh Foil Bearing
,”
ASME J. Eng. Gas Turbines Power
,
132
(
3
), p.
032503
.10.1115/1.3159379
6.
Morton
,
P. G.
,
1971
, “
Measurement of the Dynamic Characteristics of Large Sleeve Bearings
,”
ASME J. Tribol.
,
93
(1), pp.
143
150
.10.1115/1.3451502
7.
Diana
,
G.
,
Borgese
,
D.
, and
Dufour
,
A.
,
1980
, “
Experimental and Analytical Research on a Full Scale Turbine Journal Bearing
,”
2nd IMechE International Conference on Vibration in Rotating Machinery
,
Cambridge, UK
, September 2–4, Paper No. C296, pp.
309
314
.
8.
Brockwell
,
K.
, and
Dmochowski
,
W.
,
1989
, “
Experimental Determination of the Journal Bearing Oil Film Coefficients by the Method of Selective Vibration Orbits
,”
Rotating Machinery Dynamics: 12th Biennial ASME Conference on Mechanics Vibration and Noise, Montreal, Canada, September 17–21
, pp.
251
259
.
9.
Flack
,
R. D.
,
Kostrzewsky
,
G. J.
, and
Taylor
,
D. V.
,
1993
, “
A Hydrodynamic Journal Bearing Test Rig With Dynamic Measurement Capabilities
,”
Tribol. Trans.
,
36
(
4
), pp.
497
512
.10.1080/10402009308983190
10.
Kostrzewsky
,
G. J.
,
1990
,
Experimental Determination of the Steady State and Dynamic Characteristics of Fluid Film Bearings With Results for a Two-Axial Groove Journal Bearing
,
University of Virginia
,
Charlottesville, VA
.
11.
Adams
,
M. L.
,
Sawicki
,
J. T.
, and
Capaldi
,
R. J.
,
1992
, “
Experimental Determination of Hydrostatic Journal Bearing Rotor Dynamic Coefficients
,”
5th IMechE International Conference on Vibrations in Rotating Machinery
,
Bath, UK
, September 7–10, pp.
365
374
.
12.
Sawicki
,
J. T.
,
Capaldi
,
R. J.
, and
Adams
,
M. L.
,
1997
, “
Experimental and Theoretical Rotordynamic Characteristics of a Hybrid Journal Bearing
,”
ASME J. Tribol.
,
119
(
1
), pp.
132
142
.10.1115/1.2832446
13.
Howard
,
S.
,
DellaCorte
,
C.
,
Valco
,
M. J.
,
Prahl
,
J. M.
, and
Heshmat
,
H.
,
2001
, “
Dynamic Stiffness and Damping Characteristics of a High-Temperature Air Foil Journal Bearing
,”
Tribol. Trans.
,
44
(
4
), pp.
657
663
.10.1080/10402000108982507
14.
San Andrés
,
L.
,
Kim
,
T. H.
,
Chirathadam
,
T. A.
, and
Ryu
,
K.
,
2010
, “
Measurements of Drag Torque, Lift-Off Journal Speed and Temperature in a Metal Mesh Foil Bearing
,”
ASME J. Eng. Gas Turbines Power
,
132
(
11
), p.
112503
.10.1115/1.4000863
15.
San Andrés
,
L.
, and
Chirathadam
,
T. A.
,
2011
, “
Identification of Rotordynamic Force Coefficients of a Metal Mesh Foil Bearing Using Impact Load Excitations
,”
ASME J. Eng. Gas Turbines Power
,
133
(
11
), p.
112501
.10.1115/1.4002658
16.
Lee
,
Y.-B.
,
Park
,
D.-J.
, and
Kim
,
C.-H.
,
2006
, “
Numerical Analysis for Bump Foil Journal Bearing Considering Top Foil Effect and Experimental Investigation
,”
7th IFToMM-Conference on Rotor Dynamics
,
Vienna, Austria
, September 25–28, Paper No. 229.
17.
Rudloff
,
L.
,
Arghir
,
M.
,
Bonneau
,
O.
, and
Matta
,
P.
,
2011
, “
Experimental Analyses of a First Generation Foil Bearing: Startup Torque and Dynamic Coefficients
,”
ASME J. Eng. Gas Turbines Power
,
133
(9), p.
092501
.10.1115/1.4002909
18.
Hurley
,
K. A.
,
1998
,
“Experimental Determination of the Rotor Dynamic Coefficients of a Gas-Lubricated Foil Journal Bearing
,”
Ph.D. dissertation, The Pennsylvania State University
,
State College, PA
, pp.
31
35
.
You do not currently have access to this content.