Prediction of airplane steady spin conditions by a parameter optimization scheme

Download
Author
Keith, Stephen Thomas
Date
1973-09Advisor
Redlin, Michael H.
Second Reader
Schmidt, Louis V.
Metadata
Show full item recordAbstract
To aid in the modeling of a steady state spin, the equations of motion of an airplane are formulated in a cylindrical coordinate reference frame. The derivation of the equations is
presented and the resulting equations are simplified for the equilibrium spin condition. These simplified equations are used in an unconstrained computer parameter optimization technique that algebraically solves the differential equations for the equilibrium state. The results of the computer work are presented and compared with previous prediction schemes. The potential of the method is demonstrated by application to a study of the effects of density variation.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
Related items
Showing items related by title, author, creator and subject.
-
A spectral element shallow water model on spherical geodesic grids
Giraldo, F.X. (2001);The spectral element method for the two-dimensional shallow water equations on the sphere is presented. The equations are written in conservation form and the domains are discretized using quadrilateral elements obtained ... -
A spectral element semi-Lagrangian (SESL) method for the spherical shallow water equations
Giraldo, F.X.; Perot, J. B.; Fischer, P. F. (2003);A spectral element semi-Lagrangian (SESL) method for the shallow water equations on the sphere is presented. The sphere is discretized using a hexahedral grid although any grid imaginable can be used as long as it is ... -
The Lagrange-Galerkin method for the two-dimensional shallow water equations on adaptive grids
Giraldo, F.X. (2000);The weak Lagrange-Galerkin finite element method for the two-dimensional shallow water equations on adaptive unstructured grids is presented. The equations are written in conservation form and the domains are discretized ...