Bending-Torsion Flutter of an Airfoil with Nonlinear Structural Characteristics

Citation

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. https://resolver.caltech.edu/CaltechETD:etd-02132006-152832

Abstract

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)
Group:	GALCIT
Thesis Committee:	Unknown, Unknown
Defense Date:	1 January 1959
Record Number:	CaltechETD:etd-02132006-152832
Persistent URL:	https://resolver.caltech.edu/CaltechETD:etd-02132006-152832
DOI:	10.7907/P0DS-PX18
Default Usage Policy:	No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:	624
Collection:	CaltechTHESIS
Deposited By:	Imported from ETD-db
Deposited On:	14 Feb 2006
Last Modified:	18 Oct 2023 23:25

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