Accession Number : ADA259325


Title :   Non-Newtonian Temperature and Pressure Effects of a Powder Lubricant Slurry in a Rotating Hydrostatic Step Bearing.


Descriptive Note : Master's thesis,


Corporate Author : FLORIDA UNIV GAINESVILLE


Personal Author(s) : Finn, William E


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a259325.pdf


Report Date : Jan 1993


Pagination or Media Count : 56


Abstract : The purpose of this research was to investigate the pressure and temperature effects of graphite powder lubricant added to a carrier fluid of ethylene glycol as applied in a rotating hydrostatic step bearing. After the testing apparatus was designed and modified, the temperature and pressure profiles were determined analytically and experimentally. The rheological behavior of the non-Newtonian lubricant was modeled using a Power Law model developed previously. This model has been proven to match experimental data and was therefore the tool used for comparison with research data. Ethylene glycol was used as the Newtonian lubricant for the initial experimentation, which provided a check on the test apparatus and a comparison with the non-Newtonian graphite slurry.


Descriptors :   *POWDERS , *BEARINGS , *LUBRICANTS , TEST AND EVALUATION , VELOCITY , MATHEMATICAL MODELS , GRAPHITE , PRESSURE , ROTATION , ETHYLENE GLYCOL , NONNEWTONIAN FLUIDS , VISCOSITY , RHEOLOGY , HYDROSTATICS , SHEAR STRESSES , THESES , TEMPERATURE , MODELS


Subject Categories : Organic Chemistry
      Lubricants and Hydraulic Fluids
      Fluid Mechanics
      Thermodynamics


Distribution Statement : APPROVED FOR PUBLIC RELEASE