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An investigation of the effects of a sharp velocity gradient of the flexure-torsion flutter speed of an airfoil

Citation

Dankworth, Edwin G. (1951) An investigation of the effects of a sharp velocity gradient of the flexure-torsion flutter speed of an airfoil. Engineer's thesis, California Institute of Technology. http://resolver.caltech.edu/CaltechETD:etd-03132009-130943

Abstract

This report covers the results of an experimental investigation of the effects of a velocity gradient on the flexure-torsion flutter speed of a NACA 0006 airfoil suspended by means of springs.

The presence of the velocity gradient produced no significant change in the speed at which the airfoil commenced normal self-excited oscillations. Oscillations of a torsional nature were found to occur at speeds considerably below the normal flutter speed. The causes of these torsional oscillations were not fully ascertained. It is reasoned however that they were due to flow conditions other than the presence of the velocity gradient.

Item Type:Thesis (Engineer's thesis)
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Aeronautics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Fung, Yuan-cheng
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1951
Record Number:CaltechETD:etd-03132009-130943
Persistent URL:http://resolver.caltech.edu/CaltechETD:etd-03132009-130943
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:948
Collection:CaltechTHESIS
Deposited By: Imported from ETD-db
Deposited On:16 Mar 2009
Last Modified:26 Dec 2012 02:33

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