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Pressure measurements of a three wave journal air bearing (1994)

Addy, Harold E., Jr. ; Dimofte, Florin

In: CASI

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Publication Date: 2013-08-31

Description: In order to validate theoretical predictions of a wave journal bearing concept, a bench test rig was assembled at NASA Lewis Research Center to measure the steady-state performance of a journal air bearing. The tester can run up to 30,000 RPM and the spindle has a run out of less than 1 micron. A three wave journal bearing (50 mm diameter and 58 mm length) has been machined at NASA Lewis. The pressures at 16 ports along the bearing circumference at the middle of the bearing length were measured and compared to the theoretical prediction. The bearing ran at speeds up to 15,000 RPM and certain loads. Good agreement was found between the measured and calculated pressures.

Keywords: MECHANICAL ENGINEERING

Type: Seals Flow Code Development 1993; p 285-294

Format: application/pdf

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