Hydrodynamic Lubrication 2011 Part 12 pps
Hydrodynamic Lubrication 2011 Part 12 pps
... 42
lubricant 1
lubrication 1
various forms of - 2
magnetic disk memory device 7, 59
magnetic head 7
magnetic tape memory storage 120 , 130
mean free path 59, 130
Michell bearing 48
mixed lubrication ... Cir-
cular Bearing and a Partial Arc Bearing in the Laminar and Turbulent Flow Regimes”,
Journal of Lubrication Technology, Trans. ASME, Series F, Vol. 89, April 1967, pp.
143 - 153.
1...
Hydrodynamic Lubrication 2011 Part 3 pps
... (Part 1)” (in Japanese), Trans. JSME, Vol. 37, No. 295,
March 1971, pp. 583 - 592.
11. S. Wada and H. Hayashi, “Application of Finite Element Method to Hydrodynamic Lu-
brication Problems (Part ... interesting indeed that hydrodynamic lubrication theory was developed from
the investigation into journal bearings, and thrust bearings were invented in turn as
an application of lubricati...
Hydrodynamic Lubrication 2011 Part 4 ppsx
... Reynolds’ equation in
cylindrical coordinates as follows:
∂
∂r
h
3
12
∂p
∂r
+ G
c
+
1
r
h
3
12
∂p
∂r
+ G
c
+
1
r
2
∂
∂θ
h
3
12
∂p
∂θ
=
ω
2
∂h
∂θ
(4.34)
where
G
c
=
ρ
µr
h
0
z
h
h
0
z
0
(
θ
2
)dzdz ... Michell, Lubrication - Its Principles and Practice”, Blackie & Son Ltd., London
and Glasgow, 1950.
5. A. Burgdorfer, “The Influence of the Molecular Mean Free Path...
Hydrodynamic Lubrication 2011 Part 8 pps
... the foil.
References
1. H. Blok, J.J. Van Rossum, “The Foil Bearing - A New Departure in Hydrodynamic Lu-
brication”, Lubrication Engineering, Vol. 9, No. 6, December, 1953, pp. 316 - 320.
2. A. ... Trans.
ASME. F, Vol. 91, No. 1, January 1969, pp. 120 - 125 .
7. L. Licht, “An Experimental Study of High Speed Rotors Supported by Air-Lubricated
Foil Bearings, Part I & II”, Trans. A...
TÀI LIỆU ÔN TẬP THI TỐT NGHIỆP MÔN TIẾNG ANH Năm học 2010- 2011 Part 12 ppsx
... writing D. that
wrote
TÀI LIỆU ÔN TẬP THI TỐT NGHIỆP MÔN TIẾNG ANH
Năm học 2010- 2011
Part 12
1. Sunday is the day I go to Water park with my kids.
A. when B. where C. why
D. ... haven't got a passport means I can't leave my country.
A. which B. that C. this D. it
47. The part of town where I live is very noisy at night, makes it difficult to
sleep....
Hydrodynamic Lubrication 2009 Part 2 ppsx
... lubrication. Recently developed theories of elastohy-
drodynamic lubrication, thermohydrodynamic lubrication, turbulent hydrodynamic
lubrication, and others are regarded as extensions of Reynolds’ ... called the clearance circle. The clearance circle is
2
Foundations of Hydrodynamic Lubrication
The essence of hydrodynamic lubrication was first clarified experimentally by British
r...
Hydrodynamic Lubrication 2009 Part 4 pps
... Reynolds’ equation in
cylindrical coordinates as follows:
∂
∂r
h
3
12
∂p
∂r
+ G
c
+
1
r
h
3
12
∂p
∂r
+ G
c
+
1
r
2
∂
∂θ
h
3
12
∂p
∂θ
=
ω
2
∂h
∂θ
(4.34)
where
G
c
=
ρ
µr
h
0
z
h
h
0
z
0
(
θ
2
)dzdz ... (Part 1)” (in Japanese), Trans. JSME, Vol. 37, No. 295,
March 1971, pp. 583 - 592.
11. S. Wada and H. Hayashi, “Application of Finite Element Method to Hydrodynamic...
Hydrodynamic Lubrication 2009 Part 10 pps
... Basic Equations for Thermohydrodynamic Lubrication
Hydrodynamic lubrication that takes heat generation and temperature rise into con-
sideration is called thermohydrodynamic lubrication, orTHL. To ... inside solid parts:
∂
2
T
∂x
2
+
∂
2
T
∂y
2
+
∂
2
T
∂z
2
= 0
6. Equation of heat transfer at the surface of solid parts: Q = h
c
(T
s
− T
a
)
7. Equation of heat expansion of solid parts:...
Hydrodynamic Lubrication 2009 Part 12 docx
... March, “A Thermohydrodynamic Analysis of Journal Bearings”, Proc.
I. Mech. E., Vol. 181, Part 3O, 1966-1967, pp. 117 - 126 .
6. R.G. Woolacott, W.L. Cooke, “Thermal Aspects of Hydrodynamic Journal ... (steady
part) and fluctuations (unsteady part) as follows:
u =
u + u
, = +
, p = p + p
(9.2)
where (
) shows the time average or the steady part, and (
) indicates the unste...
Hydrodynamic Lubrication 2009 Part 14 pps
... 87
half-speed whirl 65
heat generation 161
Hermann’s variational method 150
Holm, R. 6
hydrodynamic bearing 23
hydrodynamic lubrication 3, 6, 9
hydrostatic bearing 23
infinitely long (journal) bearings ... 1, March
1978, pp. 107 - 112.
26. S. Wada and H. Hashimoto, “Turbulent Lubrication Theory Using the Frictional Law
(First Report, Derivation of Turbulent Coefficient and Lubrication...
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