EHL Elliptic Contact
Default value:
Body 1, ring diameter 30 mm
Body 2, shaft diameter 20 mm
Body 1
Body 2
Young's modulus E
GPa
GPa
Poisson's ratio
Radius r
x
(enter r=0! for plain surface)
10
-3
m
10
-3
m
Radius r
y
(enter r=0! for plain surface)
10
-3
m
10
-3
m
Lubricant viscosity
η
0
Pa·s
Viscosity pressure coeff α
10
-8
GPa
-1
Hydrodynamic velocity U=ω
1
R
1
+ω
2
R
2
m/s
Applied load F
N
Effective Young's modulus E'
GPa
Effective contact radius R'
10
-3
m
Semi contact width a
10
-3
m
Semi contact width b
10
-3
m
Mean contact pressure p
m
GPa
Maximum contact pressure p
max
GPa
Viscosity pressure number L
Load number N
Film height number H
Couette-flow film thickness h
c
10
-6
m
www.tribology
-abc.com