Operating Characteristics of a Cantilever-mounted Resilient-pad Gas-lubricated Thrust BearingNational Aeronautics and Space Administration, Scientific and Technical Information Office, 1979 - Bearings (Machinery) - 27 pages |
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Page 2
... square meter except at startup and shutdown when the load was removed from the pads and supported by an auxiliary pressurized thrust bearing . Am- bient air at 297 K was used as the lubricant . APPARATUS Test Thrust Bearing The ...
... square meter except at startup and shutdown when the load was removed from the pads and supported by an auxiliary pressurized thrust bearing . Am- bient air at 297 K was used as the lubricant . APPARATUS Test Thrust Bearing The ...
Page 4
... m ) to accommodate radial growth of the rotor and to keep the criti- cal speed and associated bearing loads low . The two ... square meter . - An externally pressurized shaft lift bearing was incorporated into the thrust test bearing for ...
... m ) to accommodate radial growth of the rotor and to keep the criti- cal speed and associated bearing loads low . The two ... square meter . - An externally pressurized shaft lift bearing was incorporated into the thrust test bearing for ...
Page 11
... square meter . The following results were obtained : 1. Feasibility of the cantilever - mounted resilient - pad ... M. A .; and Silver , A 11.
... square meter . The following results were obtained : 1. Feasibility of the cantilever - mounted resilient - pad ... M. A .; and Silver , A 11.
Common terms and phrases
104 Shaft speed 16.8 kilonewtons 20x103 Rotor speed 74 newtons alinement approximately bearing friction torque bearing surfaces bearing was run cantilever beams cantilever-mounted resilient-pad gas center of pressure centimeters clamped bearing mount clearance as function Externally pressurized bearing Figure 9 foil bearings function of rotor gas bearings gas film gas thrust bearing gimbal mount High Speed Increasing speed Induction probes journal bearing kilonewtons per square Lewis Research Center lift bearing load of 74 lubricant mating runner minimum film thickness N-cm NASA Nemeth Operating Characteristics pad and beam pad probes pad surfaces predicted by theory probe 13 probe location probe signal Rayleigh step bearing Rayleigh step thrust resilient-pad gas thrust self-alining gimbal shaft weight shown in figure speed range step thrust bearing test thrust bearing theoretical film thickness thickness at probe three bearing assemblies torque as function torque sensor torque was greater touchdown speed uniform minimum film unit load