A Power Flow Model for High Speed Motorized Spindles—Heat Generation Characterization

[+] Author and Article Information
Bernd Bossmanns, Jay F. Tu

School of Industrial Engineering, Purdue University, West Lafayette, IN 47907-1287

J. Manuf. Sci. Eng 123(3), 494-505 (Feb 01, 2000) (12 pages) doi:10.1115/1.1349555 History: Received December 01, 1999; Revised February 01, 2000
Copyright © 2001 by ASME
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Layout of the test spindle
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Static force and stiffness of the spindle bearing system
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Force flow and spring model
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Spindle coast test with varied preload in the front bearings
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Relative friction torque of spindle
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Heat generation of the front bearing set based on tests
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Spindle instrumentation
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A finite element spindle model marked with heat sources and sinks
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Heat flux generations obtained by heat source tests
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Temperature profiles of a steady state test at 20,000 rpm.
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Heat flux removed by motor coolant and speed profile
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Predicted heat generation by the motor versus average heat removed by the coolant



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