EVALUATION OF GAS BEARINGS FOR USE IN NAVAL MACHINERY UNDER CONDITIONS OF HIGH IMPACT.

Abstract

A test machine, having a 65.5-pound rotor and employing gas-lubricated bearings, was experimentally subjected to impact testing while rotating at approximately 8000 rpm. The impact testing involved: (1) 1000 impacts on each of three bearing systems; (2) 30,000 low-level impacts on one bearing system; and (3) a series of high-level impact tests on one bearing system. Capacitance probe displacement transducers and accelerometers were used to measure dynamic responses throughout the test program. The impact tests identified further criteria that are considered to be important in the design of gas bearings for applications involving impact. Additional analysis and testing is now required to reduce these criteria to practical design procedures. The results demonstrate that gas bearings can be used under quite severe conditions of impact. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 28, 1970
Accession Number
AD0706365

Entities

People

  • Alan Frost

Tags

DTIC Thesaurus Topics

  • Accelerometers
  • Bearings
  • Capacitance
  • Displacement
  • Dynamic Response
  • Gas Bearings
  • Impact Tests
  • Test And Evaluation
  • Test Methods
  • Transducers

Readers

  • Environmental Impact Assessment (EIA) of Proposed Air Force Base Actions.
  • Fluid Dynamics.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).