Accession Number:

ADA052351

Title:

Development of Mainshaft High Speed Cylindrical Roller Bearings for Gas Turbine Engines.

Descriptive Note:

Interim rept. 1 Oct 75-1 Apr 77,

Corporate Author:

PRATT AND WHITNEY AIRCRAFT GROUP WEST PALM BEACH FL GOVERNMENT PRODUCTS DIV

Report Date:

1977-04-01

Pagination or Media Count:

115.0

Abstract:

This combined analytical and experimental program is aimed at generating a manual that will permit the design of 3.0 MDN cylindrical roller bearings. The roller bearing analysis will be correlated with the results from a series of bearing tests designed to determine, by statistical methods, the effect of geometrical variables on bearing performance. An existing quasi-static design optimization system has been upgraded and the basic analyses for use in developing a program to predict the dynamic behavior of roller bearing components are nearly complete. A study identified a total of thirty separate bearing parameters that can influence roller skewing and skidding. Two groups of 124 mm roller bearing designs were then prepared using statistical design techniques and incorporating parameters from the list of thirty. Fabrication of full-scale bearing hardware was completed and testing was initiated on the first group of bearings. Author

Subject Categories:

  • Machinery and Tools
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE