THE MEASUREMENT OF OIL FILM THICKNESS VERSUS TIME UNDER IMPACT LOADING CONDITIONS.

Abstract

The thickness of lubricant films under impact loading conditions has been measured as a function of time by passing a collimated beam of light through the film, detecting the emerging rays with a photomultiplier tube, and displaying the transient waveform on a cathode ray oscilloscope. It is shown that rotative speed is the dominant variable in the determination of film thickness in the contact area of rolling cylinders. Plateau Time is defined as the time period during which minimum film thickness is maintained at the contact area and is interpreted as a measure of the 'oiliness' of a lubricant.

Document Details

Document Type
Technical Report
Publication Date
May 01, 1966
Accession Number
AD0487414

Entities

People

  • Robert Marlin Hydinger

Organizations

  • Naval Postgraduate School

Tags

DTIC Thesaurus Topics

  • Lubricants
  • Measurement
  • Oscilloscopes
  • Photomultiplier Tubes
  • Thickness
  • Waveforms

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Electronics Engineering
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).