In-Line Aircraft-Engine Bearing Loads. 1 - Crankpin-Bearing Loads

Abstract

A method of generalizing the results of a relatively few conventional bearing-load analyses has been developed. When dimensional analysis is applied, a smooth curve is obtained when the quantity (rpm)sq/(imep) is plotted against (bearing load at a particular crank angle)/(imep). Such a family of curves, using crank angle as the parameter, may be obtained from the results of as few as six conventional bearing-load analyses. This family of curves enables charts to be constructed that give the maximum and mean crankpin-bearing loads for any combination of engine speed and indicated mean effective pressure. This method is applicable to the principal bearings of both in-line and radial engines.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1945
Accession Number
ADB805958

Entities

People

  • E. F. Macks
  • Milton C. Shaw

Organizations

  • Glenn Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeronautics
  • Aircraft Engines
  • Aircrafts
  • Charts
  • Compression
  • Compression Ratio
  • Computations
  • Connecting Rods
  • Diagrams
  • Engines
  • Equations
  • Exhaust Valves
  • Horsepower
  • Internal Combustion Engines
  • Power Levels
  • Production
  • Valves

Readers

  • Calculus or Mathematical Analysis
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).