Optimum turbine wheel geometry for passenger car gas turbine has been calculated for two ceramic meterials: hot pressed silicon nitride and densified silicon carbide. Two interative strategies, coupling the mathematical programming techniques with methods of finite elements and finite differences, were used for finding the disk with minimum failure probability. The influences of mean strength, Weibull modulus, and the disk form on the failure probability are presented. The results distinctly show that an improvement in material quality is necessary if the ceramic gas turbine wheel is to become a dependable component. /GMRL/

Media Info

  • Pagination: 6 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00145031
  • Record Type: Publication
  • Report/Paper Numbers: SAE #760241
  • Files: TRIS
  • Created Date: Feb 1 1977 12:00AM