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Bending-Torsion Flutter of an Airfoil with Nonlinear Structural Characteristics


Peck, Jerry Clifford (1959) Bending-Torsion Flutter of an Airfoil with Nonlinear Structural Characteristics. Engineer's thesis, California Institute of Technology. doi:10.7907/P0DS-PX18.


A theoretical analysis of the incompressible bending-torsion flutter of a two-dimensional airfoil with nonlinear structural characteristics is presented. The Method of Slowly Varying Parameters of Kryloff and Bogoliuboff is applied, and the steady-state oscillations are found. The stability of the steady-state oscillation is analyzed through the use of perturbation equations. A quasi-steady aerodynamic approximation is used, and closed-form solutions for the steady-state oscillations are found for the case of elastic torsional nonlinearities. A numerical example of a soft-hard stiffness characteristic is treated, and the steady-state and stability results given.

Item Type:Thesis (Engineer's thesis)
Subject Keywords:(Aeronautical Engineering)
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Aeronautics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Sechler, Ernest Edwin (advisor)
  • Caughey, Thomas Kirk (advisor)
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1959
Record Number:CaltechETD:etd-02132006-152832
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:624
Deposited By: Imported from ETD-db
Deposited On:14 Feb 2006
Last Modified:18 Oct 2023 23:25

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PDF (Peck_jc_1959.pdf) - Final Version
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