Accession Number:

AD0600657

Title:

AN INVESTIGATION OF SELF-ACTING FOIL BEARINGS,

Descriptive Note:

Corporate Author:

AMPEX CORP REDWOOD CITY CALIF

Personal Author(s):

Report Date:

1964-03-01

Pagination or Media Count:

41.0

Abstract:

Experimental results on the interior and exit region film thickness measurements of self-acting foil bearings are presented and discussed. These measurements were made with capacitive sensors and conductive foils. The validity of a growing sinusoidal film thickness in the exit region first predicted by Gross is clearly evidenced from the photographs. The measured wave lengths checked with Barlows calculated values within 6 percent. For a constant relative velocity, the effect of increasing tension is to decrease the film thickness while for a constant tension, the effect of increasing speed is to increase the film thickness. The effect of gas compressibility becomes important for high relative velocity and the effect of surface roughness greatly influences either the predicted or measured values for thin film thickness. The data presented in this report cover a range of drum linear speed from 30 to 1942 insec and tape tension from 0.054 to 3.24 lbin. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE