Page 19 - Dana Glacier Bearings Materials Brochure, designed and produced by Connell Marketing Associates, UK

Customer Support and
Design Services

Bearing Design
Bearing design incorporates material selection and the detailing of the individual
features of the bearing. The design process is aided through the use of computer
simulation of the bearing’s operating conditions.

SABRE - EHL Stages of EHL analysis

From details of connecting rod supplied by the customer, a mesh is produced to enable a SABRE - EHL analysis.

CAD model of Connecting Rod Finite Element Mesh of Connecting Rod Result of EHL analysis. Plot of oil film pressure.

SABRE - EHL is an important It is also sensitive to other
addition to the design and influences in the bearing, such
problem solving armoury of as the disruption of the
Glacier Vandervell and is one of hydrodynamic film caused by oil
the most advanced design tools holes and grooves, the increase
available throughout the world. of lubricant viscosity produced
by high oil film pressure and the
SABRE - EHL represents a major effects of non-cylindrical
advance in the techniques for geometry.
the analysis of dynamically
loaded hydro-dynamic journal Hence SABRE - EHL generates
bearings such as those used as much more realistic values of oil
crankshaft bearings in internal film pressure and minimum oil
combustion engines. film thickness than those
obtained by conventional rigid
The software employs a finite theory.
difference solution of the full
2-dimensional Reynolds equation SABRE - EHL may be used for
coupled to a structural model of optimising the operation of a
the bearing and its supporting bearing system by investigating
structure. Oil film history effects the effect of making changes to
are also taken into account. the design of the bearing
support and for troubleshooting
This elasto-hydrodynamic model to gain a better understanding
can predict the effects of elastic of why bearing damage has
distortion of the bearing on the occurred.
generated oil film pressure and
oil film thickness under dynamic
load.

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