INTEGRALLY CAST TURBINE ROTOR FOR HIGH VOLUME PRODUCTION
An automated procedure is described for determining the optimum radial orientation, or "stacking," of turbine rotor blade sections to give a design which satisfies both high production manufacturing and rotor structural requirements. High production manufacturing requires that the spaces between blades be pulled away from the wheel in a generally radial direction to release the wax replica of the wheel from the tooling. Structural requirements are expressed in terms of bending stress constraints. A pullability index is defined to indicate the amount of interference to be encountered in removing the tooling. This index is optimized with respect to the direction of removal of the tooling. Bending stress requirements are simultaneously satisfied. This method has been applied successfully to four rotor designs which are currently being manufactured in experimental quantities.
- Presented at the SAE Aerospace Meeting, San Diego, 27-30 November 1978.
Warrendale, PA United States 15096
- Junod, L A
- Arvin, J R
- Publication Date: 1978
- Features: References;
- Pagination: 10 p.
- TRT Terms: Bending; Bending stress; Design; Manufacturing; Rotor blades; Stresses; Tools; Turbines
- Old TRIS Terms: Tooling
- Subject Areas: Design; Safety and Human Factors;
- Accession Number: 00395632
- Record Type: Publication
- Source Agency: National Highway Traffic Safety Administration
- Report/Paper Numbers: SAE 781000, HS-025 341U
- Files: HSL, USDOT
- Created Date: Jun 30 1985 12:00AM