This paper proposes a procedure for obtaining the load distribution in a four contact-point slewing bearing considering the effect of the structure’s elasticity. The uneven stiffness of the rings and the supporting structures creates a variation with respect to the results obtained with a rigid model. It is necessary to evaluate the effect of the elasticity on the increase in the contact forces in order to be able to design the slewing bearing and the structures involved in the connection. Depending on the shape of the structures, the contact force value obtained on the most loaded rolling element is different. The evaluation of this maximum force at extreme loads is essential to design the structures joined to the bearing rings. The new elastic model presented in this paper is highly nonlinear so iterative loops are needed in order to obtain a satisfactory solution. At the same time a finite element model (FEM) has been created for the global model, having also represented the rolling elements and their contact with the raceways. The results obtained using the FEM have been correlated with the results of the new procedure.

1.
Tedric
,
A. H.
, 2001,
Rolling Bearing Analysis
,
4th ed.
,
Wiley
,
New York
.
2.
Sague
,
J. E.
, and
Rumbarger
,
J. H.
, 1977, “
Design Criteria to Prevent Core Crushing Failure in Large Diameter, Case Hardened, Ball and Roller Bearings
,” ASME Paper No. 77-DE-39.
3.
Zupan
,
S.
, and
Prebil
,
I.
, 2001, “
Carrying Angle and Carrying Capacity of a Large Single Row of Ball Bearings as a Function of Geometry Parameters of the Rolling Contact and the Supporting Structure Stiffness
,”
Mech. Mach. Theory
0094-114X,
36
, pp.
1087
1103
.
4.
Zupan
,
S.
,
Prebil
,
I.
,
Kunc
,
R.
, and
Cesarek
,
M.
, 2002, “
Internal Load Distribution in Large Size Axial Rolling Bearing Mounted on Elastic Structures
,”
VDI-Ber.
0083-5560,
1706
, pp.
639
656
.
5.
Pallini
,
R. A.
, 1983, “
Predicting the Effects of Structural Distortions on the Performance of Large Diameter Rolling Bearings
,”
Lubr. Eng.
0024-7154,
40
(
5
), pp.
267
276
.
6.
Liao
,
N. T.
, and
Lin
,
J. F.
, 2001, “
A New Method for the Analysis of Deformation and Load in a Ball Bearing With Variable Contact Angle
,”
ASME J. Mech. Des.
0161-8458,
123
, pp.
304
312
.
7.
Kania
,
L.
, 2006, “
Modelling of Rollers in Calculation of Slewing Bearing With the Use of Finite Elements
,”
Mech. Mach. Theory
0094-114X,
41
, pp.
1359
1376
.
8.
Smolnicki
,
T.
, 2007, “
Superelement-Based Modelling of Load Distribution in Large-Size Slewing Bearing
,”
ASME J. Mech. Des.
0161-8458,
129
, pp.
459
463
.
9.
Daidié
,
A
,
Chaib
,
Z.
, and
Ghosn
,
A
, 2008, “
3D Simplified Finite Elements Analysis of Load and Contact Angle in a Slewing Ball Bearing
,”
ASME J. Mech. Des.
0161-8458,
130
, p.
082601
.
10.
Amasorrain
,
J. I.
,
Sagartzazu
,
X.
, and
Damian
,
J.
, 2003, “
Load Distribution in a Four Contact-Point Slewing Bearing
,”
Mech. Mach. Theory
0094-114X,
38
, pp.
479
496
.
11.
Houpert
,
L.
, 1997, “
A Uniform Analytical Approach for Ball and Roller Bearings Calculations
,”
ASME J. Tribol.
0742-4787,
119
, pp.
851
858
.
12.
Hernot
,
X.
,
Sartor
,
M.
, and
Guillot
,
J.
, 2000, “
Calculation of the Stiffness Matrix of Angular Contact Ball Bearings by Using the Analytical Approach
,”
ASME J. Mech. Des.
0161-8458,
122
(
1
), pp.
83
90
.
13.
Hauswald
,
T.
, and
Houpert
,
L.
, 2000, “
Numerical and Experimental Simulations of Performances of Bearing System, Shaft and Housing; Account for Global and Local Deformations
,”
SIA Seminar ‘Fiabilité Experimentale’
, Paris, Oct. 24.
14.
2003, VDI 2230, Systematische Berechnung hochbeanspruchter Schraubenverbindungen zylindrische Einschraubenverbindungen.
15.
ABAQUS
, 2001, Analysis User’s Manual v6.4, Hibbitt, Karlsson and Sorensen, Inc.
16.
Chaib
,
Z.
,
Daidié
,
A.
, and
Leray
,
D.
, 2007, “
Screw Behaviour in Large Diameter Slewing Bearing Assemblies: Numerical and Experimental Analyses
,”
Int. J. Interactive Des. Manuf.
,
1
, pp.
21
31
.
17.
Duijvendijk
,
M.
, 2006, “
Benchmark of Bolted Bearing Connection Models in Wind Turbines
,”
Mecal, EWEC 2006
, Athens.
18.
Kalverboer
,
A. F.
, 2004, “
3D Reference Model for Bearing Connections of Wind Turbine Components
,”
Mecal, EWEC 2004
, London, UK.
19.
Guyan
,
J.
, 1965, “
Reduction of Stiffness and Mass Matrices
,” AIAA, 3.
You do not currently have access to this content.