Accession Number : AD0787088

Title :   Research on Aeroelastic Phenomena in Airfoil Cascades: Supersonic Inlet Torsional Flutter.

Descriptive Note : Technical rept.,

Corporate Author : GENERAL MOTORS CORP INDIANAPOLIS IND DETROIT DIESEL ALLISON DIV

Personal Author(s) : Fleeter,Sanford ; McClure,Robert B. ; Sinnet,George T. ; Holtman,Robert L.

Report Date : SEP 1974

Pagination or Media Count : 49

Abstract : The paper describes a unique supersonic inlet with a subsonic axial component, torsional flutter cascade experiment, wherein a computer controlled electromagnetic airfoil excitation system is used to simulate the fundamental time-dependent airfoil interaction; assure periodicity; and control the interblade phasing angle. Experimental data are presented which indicate the variation and significance of the cascade inlet Mach number, the stagger angle, and the interblade phasing angle on the cascade dynamic torsional aeroelastic characteristics. (Author)

Descriptors :   *Supersonic airfoils, *Flutter, *Duct inlets, Cascades(Fluid dynamics), Subsonic flow, Electromagnetic fields, Blade airfoils, Torsion, Excitation, Aeroelasticity, Computer applications, Experimental design, Angles

Subject Categories : Aerodynamics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE