NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
A Waved Journal Bearing Concept-Evaluating Steady-State and Dynamic Performance with a Potential Active Control AlternativeAnalysis of the waved journal bearing concept featuring a waved inner bearing diameter for use with a compressible lubricant (gas) is presented. The performance of generic waved bearings having either three or four waves is predicted for air lubricated bearings. Steady-state performance is discussed in terms of bearing load capacity, while the dynamic performance is discussed in terms of fluid film stability and dynamic coefficients. It was found that the bearing wave amplitude has an important influence on both the steady-state and the dynamic performance of the waved journal bearing. For a fixed eccentricity ratio, the bearing steady-state load capacity and direct dynamic stiffness coefficient increase as the wave amplitude increases.
Document ID
19980034790
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Dimofte, Florin
(NASA Lewis Research Center Cleveland, OH United States)
Date Acquired
August 18, 2013
Publication Date
January 1, 1993
Publication Information
Publisher: American Society of Mechanical Engineers
Subject Category
Mechanical Engineering
Report/Patent Number
E-7803
Funding Number(s)
CONTRACT_GRANT: NAG1-370
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available