OPTIMUM DESIGN OF CERAMIC TURBINE WHEEL

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/

• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • TOMAS, J
• Publication Date: 1976-2

Media Info

• Pagination: 6 p.

Subject/Index Terms

• TRT Terms: Ceramic materials; Design; Failure; Gas turbines; Optimization; Probability theory; Silicon compounds; Strength of materials; Turbine engines
• Old TRIS Terms: Optimum design
• Subject Areas: Data and Information Technology; Design; Geotechnology; Highways; Materials; Safety and Human Factors;

Filing Info

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