Accession Number:

AD0274551

Title:

EXPERIMENTAL INVESTIGATION OF WHIRL IN SELF-ACTING AIR-LUBRICATED JOURNAL BEARINGS

Descriptive Note:

Corporate Author:

INTERNATIONAL BUSINESS MACHINES CORP SAN JOSE CALIF

Personal Author(s):

Report Date:

1961-10-27

Pagination or Media Count:

1.0

Abstract:

Bearing characteristics influencing the threshold speed at which large-amplitude self-excited whirl occurs in complete, air-lubricated journal bearings were experimentally investigated. By varying slenderness and clearance ratios and unit load, by opening or closing supply orifices, or by adding unbalance, the whirl threshold speed could be varied between zero and the limit set by the available power. Experimental methods of identifying the cylindrical and conical modes of synchronous and self-excited whirl are described. The whirl hysteresis region and the nature of whirl at speeds above th threshold are examined. Three methods of avoiding large-amplitude self-excited whirl are discussed. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE