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Practical Centrifugal Pumps
book

Practical Centrifugal Pumps

by Paresh Girdhar, Octo Moniz
April 2011
Beginner to intermediate content levelBeginner to intermediate
264 pages
8h 24m
English
Newnes
Content preview from Practical Centrifugal Pumps
Centrifugal pump design and construction 33
The shaft design depends on the evaluations of either the torsion shear stress at the
smallest diameter of the shaft or a comprehensive fatigue evaluation taking into
consideration the combined loads, the number of cycles, and the stress concentration
factors. The design at all times involves sophisticated finite-element computer evaluations.
The shaft design is limited not only to the stress evaluation but is also dependent on
other factors such as:
Shaft deflection
Key stresses
Mounted components
Critical speeds (rotordynamics).
The most common pump shaft material is plain carbon steel, typically BS-970-En 8.
Higher grades include BS-970-En19 or AISI 4140, ASTM-A322, Grade-4140
(quenched ...
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Publisher Resources

ISBN: 9780080480145