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Patterned Relief in Squeeze Bearing to Improve Load, Stiffness, And Damping Characteristics

IP.com Disclosure Number: IPCOM000037773D
Original Publication Date: 1989-Jun-01
Included in the Prior Art Database: 2005-Jan-30
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Scranton, RA: AUTHOR [+2]

Abstract

The load supporting ability of a squeeze bearing is increased by creating an edge relief around the perimeter of the bearing. For a disk shaped squeeze bearing, the load supporting ability is a maximum for a relieved radius (r) of approximately 2/3 of the disk radius (R).

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Patterned Relief in Squeeze Bearing to Improve Load, Stiffness, And Damping Characteristics

The load supporting ability of a squeeze bearing is increased by creating an edge relief around the perimeter of the bearing. For a disk shaped squeeze bearing, the load supporting ability is a maximum for a relieved radius (r) of approximately 2/3 of the disk radius (R).

In the Figure, a disk shaped bearing, normally with zero displacement amplitude at the edges, is shown with external radius (R) interior radius (r) and relief thickness (t). The load supporting ability of the bearing is directly proportional to the radius (R). While a reduction in the exterior radius (R) results in a decrease of the load supporting area, the relief at the circumference edge has been found to compensate for and subsequently increase the load supporting ability of the bearing. The load supporting ability is a maximum when the relieved radius (r) is equal to about 2/3 of the disk radius (R) with a thickness
(t) of .010. Relieving the bearing surface has been found not to significantly affect the load distribution mode shape for the disk bearing.

Disclosed anonymously.

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