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ASTM Selected Technical Papers
Hydraulic Failure Analysis: Fluids, Components, and System Effects
By
GE Totten
GE Totten
1
Union Carbide Corporation
?
Tarrytown, NY,
USA
Symposium Co-Chairman and Editor
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DK Wills
DK Wills
2
Sauer-Danfoss
?
Ames, IA,
USA
Symposium Co-Chairman and Editor
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DG Feldmann
DG Feldmann
3
Technical University of Hamburg-Harburg
?
Hamburg,
Germany
Symposium Co-Chairman and Editor
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ISBN-10:
0-8031-2883-5
ISBN:
978-0-8031-2883-5
No. of Pages:
611
Publisher:
ASTM International
Publication date:
2001

The general lack of basic principles for designing reliable components for hydraulic pumps and motors requires a strategy of applying experience and full scale testing. Hydraulic pump and motor components are very sparsely lubricated though they are immersed in fluid. They therefore slide in “boundary lubrication,” a regime for which there are no methods for predicting, or even estimating product life or frictional performance. The testing of sub-components in bench tests or in accelerated tests produces new uncertainties since the role of the many variables that control wear and scuffing are not well known. The best design procedure involves full scale testing of components with all of the recirculating contaminants, vibrations, and misalignments included. These practical conditions are impossible to simulate adequately. Finally, the tests must be done by people (or groups) who have full knowledge of hydrodynamic lubrication, contact mechanics, wear mechanisms, and product applications.

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Hamrock
,
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,”
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,
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,
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Hutchings
,
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, “
Tribology
,”
CRC Press
,
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,
Boca Raton FL
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3.
Ludema
,
K. C
, “
Friction, Wear and Lubrication: A Textbook in Tribology
,”
CRC Press
,
1996
,
Boca Raton, FL
, Chap. 9.
4.
Tallian
,
T.E.
,
McCool
,
J.I.
, and
Sibley
,
L.B.
,
Institution of Mechanical Engineers
,
1 Birdcage Walk, London
,
1965
, v.
180-3B
, p. 238,
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