Parametric studies of the dynamic stability of submersibles
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Authors
Cunningham, Stanley
Subjects
Dynamic Stability, Continuation, Hydrodynamic Forces and Moments, Jacobian Matrices, Eigenvalues
Advisors
Papoulias, Fotis A.
Date of Issue
1994-03
Date
March, 1994
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
This thesis analyzes the dynamic stability of submersible vehicles in motions in six degrees of freedom. A continuation algorithm is used in order to obtain the steady state solutions in terms of dive plane angle, rudder angle, and longitudinal separation of centers of gravity/buoyancy. The equations of motion are
then linearized in the vicinity of the above stated nominal point. The eigenvalues of the linearized system indicate the degree of stability of the nominal motion. The results demonstrate the stabilizing or destabilizing effects of general three dimensional motions as opposed to the traditional use of straight line level flight paths. Recommendations for robust design of control laws for commanded paths in combined horizontal vertical planes are provided.
Type
Thesis
Description
Series/Report No
Department
Mechanical Engineering
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
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.