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Abstract
Using the hydrostatic “disk” (or ring) machine developed in the authors' laboratory, a fluctuating load of ±5 percent was super-imposed on a steady load. At about 15 Hz the load-carrying capacity dropped by 40 percent compared with the steady value. It returned to, its original value at about 60 Hz. The friction (and surface temperature) rose as the load-carrying capacity dropped. In one set of tests, the pitting life dropped from 13 hours to 30 minutes. The drop did not seem to depend on waveform and no sign of a machine reasonance was found despite a careful search.
The most likely explanation of the effect was thought to be a modification of the film shape due to the squeeze-film component.
Presented at the 36th Annual Meeting in Pittsburgh, Pennsylvania, May 11–14, 1981
Notes
Presented at the 36th Annual Meeting in Pittsburgh, Pennsylvania, May 11–14, 1981