This note provides a more extensive assessment of bearing performance for steadily loaded oscillating journal bearings using the mobility method of solution. Even with significantly large journal oscillation amplitudes, unexpectedly thin films are predicted for conventional designs as the load number goes to zero. Offset journal bearing arrangements subjected to the same loads and kinematics are shown to provide a substantial improvement in film thickness, particularly at low oscillation amplitudes, compared with the conventional design configuration.

References

1.
Gupta
,
B. K.
, and
Phelan
,
R. M.
,
1964
, “
The Load Capacity of Short Journal Bearings With Oscillating Effective Speed
,”
ASME J. Basic Eng.
,
86
(
2
), pp.
348
354
.
2.
Booker
,
J. F.
,
Goenka
,
P. K.
, and
van Leeuwen
,
H. J.
,
1982
, “
Dynamic Analysis of Rocking Journal Bearings With Multiple Offset Segments
,”
ASME J. Lubr. Technol.
,
104
(
4
), pp.
478
490
[Addendum, 105, 1983, p. 220].
3.
Booker
,
J. F.
, and
Olikara
,
P.
,
1984
, “
Dynamics of Offset Bearings: Parametric Studies
,”
ASME J. Tribol.
,
106
(
3
), pp.
352
358
.
4.
Boedo
,
S.
, and
Booker
,
J. F.
,
2009
, “
Dynamics of Offset Journal Bearings–Revisited
,”
Proc. Inst. Mech. Eng., Part J
,
223
(3), pp.
359
369
, 606–607.
5.
Cole
,
J. A.
, and
Hughes
,
C. J.
,
1957
, “
Visual Study of Film Extent in Dynamically Loaded Complete Journal Bearings
,”
Conference on Lubrication and Wear
, IMechE, London, pp.
147
150
.
6.
Barwell
,
F. T.
,
Milne
,
A. A.
, and
Webber
,
J. S.
,
1954
1955
, “
Some Experiments on Oscillating Bearings
,”
Trans. Inst. Eng. Shipbuild. Scotl.
,
98
(
5
), pp.
267
326
.
7.
Nelson
,
G. G.
, and
Gatcombe
,
K.
,
1958
, “
Oscillating Journal Bearing Oil Film Study
,”
ASME
Paper No. 58-A-156.
8.
Lu
,
X.
, and
Khonsari
,
M. M.
,
2008
, “
An Experimental Study of Oil-Lubricated Journal Bearings Undergoing Oscillatory Motion
,”
ASME J. Tribol.
,
130
(
2
), p.
021702
.
9.
Wakuri
,
Y.
,
Ono
,
S.
, and
Soejima
,
M.
,
1982
, “
On the Lubrication of Crosshead-Pin Bearing With Eccentric Journal
,”
Bull. JSME
,
25
(206), pp.
1312
1320
.
10.
Wakuri
,
Y.
, and
Soejima
,
M.
,
1985
, “
Studies on Load Carrying Capacity of an Offset Typed Crosshead-Pin Bearing
,”
JSLE International Tribology Conference
, Tokyo, July 8–10, pp.
319
324
.
11.
Goenka
,
P. K.
, and
Booker
,
J. F.
,
1983
, “
Effects of Surface Ellipticity on Dynamically Loaded Cylindrical Bearings
,”
ASME J. Lubr. Technol.
,
105
(
1
), pp.
1
9
.
12.
Booker
,
J. F.
,
1965
, “
Dynamically Loaded Journal Bearings: Mobility Method of Solution
,”
ASME J. Basic Eng.
,
87
(
3
), pp.
537
546
.
13.
Booker
,
J. F.
,
1969
, “
Dynamically Loaded Journal Bearings: Maximum Film Pressure
,”
ASME J. Lubr. Technol.
,
91
(
3
), pp.
534
537
.
14.
Booker
,
J. F.
,
1971
, “
Dynamically Loaded Journal Bearings: Numerical Application of the Mobility Method
,”
ASME J. Lubr. Technol.
,
93
(
1
), pp.
168
174
.
15.
Goenka
,
P. K.
,
1984
, “
Analytical Curve Fits for Solution Parameters of Dynamically Loaded Journal Bearings
,”
ASME J. Tribol.
,
106
(
4
), pp.
421
428
.
16.
Booker
,
J. F.
,
2014
, “
Mobility/Impedance Methods: A Guide for Application
,”
ASME J. Tribol.
,
136
(
2
), p.
024501
.
You do not currently have access to this content.