Nonlinear Analysis of Coupled Roll/Sway/Yaw Stability Characteristics of Submersible Vehicles

Abstract

The problem of coupled roll, sway, and yaw stability analysis of submersible vehicles is analyzed, with particular emphasis on nonlinear studies. Previous results had indicated that a primary loss of stability is through the development of limit cycles. This loss of stability is due to the coupling of roll into sway and yaw and cannot be predicted by considering the uncoupled dynamics. In this study, it is shown that the mechanism of loss of stability is through bifurcations to periodic solutions. These are characterized as either subcritical or supercritical, depending on the sign of a certain nonlinear coefficient. Implications of these results to vehicle performance and operations are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1997
Accession Number
ADA331440

Entities

People

  • Sotirios E. Tsamilis

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • C4I
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Coefficients
  • Computer Programs
  • Coordinate Systems
  • Couplings
  • Cross Flow
  • Differential Equations
  • Eigenvalues
  • Engineering
  • Equations
  • Equations Of Motion
  • Mathematical Analysis
  • Mechanical Engineering
  • Naval Architecture
  • Nonlinear Analysis
  • Simulations
  • Submersibles
  • Vehicles

Readers

  • Marine Hydrodynamics
  • Microwave Engineering.
  • Theoretical Analysis.