The dynamic behavior of two elastic connecting-rod bearings is studied. The Newton-Raphson method and 8-node isoparametric elements for the lubrication analysis are used. For the structural analysis, 3-D elasticity assumptions are made and 20 nodes isoparametric elements are used. Inertia forces due to the kinematics of the structure are incorporated with the effects of the hydrodynamic pressures in the elastic deformations of the bearing. Comparisons with Goenka‘s results are presented for the General Motors connecting-rod bearing. A mass-conserving model used in conjunction with Murty‘s algorithm is presented for the transient evolution of the cavitation area. This model is applied for the EHD study of a Renault connecting-rod bearing.

Issue Section:
Research Papers
Topics:
Cavitation, Inertia (Mechanics), Bearings, Algorithms, Deformation, Elasticity, Kinematics, Lubrication, Motors, Newton's method, Structural analysis, Transients (Dynamics)
1.
Aitken
M. B.
, and
McCallion
H.
,
1991
, “
Elastohydrodynamic Lubrication of Big-End Bearings Part 1: theory
,”
Proc. Instn. Mech. Engrs.
, Vol.
205
, pp.
99
–
106
.
2.
Brewe
D. E.
,
1986
, “
Theoretical Modeling of the Vapor Cavitation in Dynamically Loaded Journal Bearings
,”
Transactions of the ASME JOURNAL OF TRIBOLOGY
, Vol.
108
, pp.
628
–
638
.
3.
Elrod, H. G., and Adams, M. L., 1974, “A Computer Program for Cavitation and Starvation Problems,” Cavitation and Related Phenomena in Lubrication, Mechanical Engineering Publications, New-York, pp. 37–41.
4.
Elrod
H. G.
,
1981
, “
A Cavitation Algorithm
,”
ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol.
103
, pp.
350
–
354
.
5.
Fantino
B.
,
Freˆne
, and
Duparquet
J.
,
1979
, “
Elastic Connecting-rod Bearing with Piezoviscous Lubricant: Analysis of the Steady State Characteristics
,”
ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol.
101
, No.
2
pp.
190
–
200
.
6.
Fantino, B., 1981, “Influence des de´fauts de forme et des de´formations e´lastiques des surfaces en lubrification hydrodynamique sous charges statiques et dynamiques, The`se No. l-DE-8122, INSA de Lyon, France.
7.
Fantino, B., Godet, M., and Freˆne, J., 1983, “Dynamic Behaviour of an Elastic Connecting-rod Bearing—Theoretical Study,” Proceeding of the Automotive Engines, Studies of Engine Bearings and Lubrication SP-539 No. 830307, pp. 23–32.
8.
Fantino
B.
, and
Frene
J.
,
1985
, “
Comparison of Dynamic Behavior of Elastic Connecting-rod Bearing in Both Petrol and Diesel Engines
,”
ASME JOURNAL OF TRIBOLOGY
, Vol.
107
, pp.
87
–
91
.
9.
Goenka
P. K.
, and
Oh
K. P.
,
1986
, “
An Optimum Short Bearing Theory for the Elastohydrodynamic Solution of Journal Bearings
,”
ASME JOURNAL OF TRIBOLOGY
, Vol.
108
, pp.
294
–
299
.
10.
Jacobsson
B.
, and
Floberg
L.
,
1957
, “
The Finite Journal Bearing Considering Vaporization
,”
Chalmers Tekniska Hoegskolas Handlingar
, Vol.
190
, pp.
1
–
116
.
11.
Jacobson
B. O.
,
Hamrock
B. J.
,
1983
, “
High-Speed Motion Picture Camera Experiments of Cavitation in Dynamically Loaded Journal Bearings
,”
ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol.
105
, No.
3
, pp.
446
–
452
.
12.
Kumar, A. and Booker, J. F., 1990, “Modal Analysis of Elastohydrodynamic Lubrication: A Connecting Rod Appllication,” ASME JOURNAL OF TRIBOLOGY.
13.
Kumar
A.
, and
Booker
J. F.
,
1991
, “
A Finite Element Cavitation Algorithm
,”
ASME JOURNAL OF TRIBOLOGY
, Vol.
113
, pp.
276
–
286
.
14.
Mclvor
J. D. C.
, and
Fenner
D. N.
,
1989
, “
Finite Element Analysis of Dynamically Loaded Flexible Journal Bearings: A Fast Newton-Raphson Method
,”
Transactions of the ASME JOURNAL OF TRIBOLOGY
, Vol.
111
, pp.
597
–
604
.
15.
Murty
K. G.
,
1974
, “
Note on a Bard-type Scheme for Solving the Complementarity Problems
,”
Opsearch
, Vol.
11
, pp.
123
–
130
.
16.
Oh
K. P.
, and
Goenka
P. K.
,
1985
, “
The Elastohydrodynamic Solution of Journal Bearing Under Dynamic Loading
,”
Transactions of the ASME JOURNAL OF TRIBOLOGY
, Vol.
107
, pp.
389
–
395
.
17.
Olsson, K., 1974, “On Hydrodynamic Lubrication with Special Reference to Nonstationary Cavitation,” Chalmers University of Technology, Goteborg.
18.
Pan
C. H. T.
,
1983
, “
Dynamic Analysis of Rupture in Thin Fluid Films. 1-A Noninertial Theory
,”
ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol.
105
, pp.
96
–
104
.
19.
Paranjpe
R. S.
, and
Goenka
P. K.
,
1990
, “
Analysis of Crankshaft Bearings Using a Mass Conserving Algorithm
,”
STLE Tribology Transactions
, Vol.
33
, No.
3
, pp.
333
–
344
.
20.
van der Tempel
L.
,
Moes
H.
,
Bosma
R.
,
1985
, “
Starvation in Dynamically Loaded Flexible Short Journal Bearings
,”
ASME JOURNAL OF TRIBOLOGY
, Vol.
107
, pp.
516
–
521
.
21.
Viadyanathan
K.
, and
Keith
T. G.
,
1989
, “
Numerical Prediction of Cavitation in Noncircular Journal Bearings
,”
Tribology Transactions
, Vol.
32
, No.
2
, pp.
215
–
224
.
22.
Vijayaraghavan
D.
, and
Keith
T. G.
,
1989
, “
Development and Evaluation of a Cavitation Algorithm
,”
Tribology Transactions
, Vol.
32
, No.
2
, pp.
225
–
233
.
23.
Woods
C. M.
,
Brewe
D. E.
,
1989
, “
The Solution of the Elrod Algorithm for a Dynamically Loaded Journal Bearing Using Multigrid Techniques
,”
ASME JOURNAL OF TRIBOLOGY
, Vol.
111
, No.
2
, pp.
302
–
308
.
This content is only available via PDF.
Copyright © 1995
 by The American Society of Mechanical Engineers
You do not currently have access to this content.