Parametric Study of the Dynamic Stability of Towed Ships

Abstract

Several accidents in towing operations of barges or disabled ships in restricted and open waters have made necessary the investigation of the course keeping stability of towed vessels. In this work a non-linear mathematical model is used to simulate the slow surge, sway, and yaw motions of a vessel towed by a heavy catenary towline. The effect of geometric parameters of the system on the stability of equilibrium configurations is analyzed. It is shown that for certain choices of towing system parameters, dynamic loss of stability may occur which results in qualitatively different asymptotic response. The results of this study identify regions in the parameter space that lead to either safe operations or hazardous system response. Keywords: Ship motion; Towed bodies; Hydrodynamic stability. Theses.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1989
Accession Number
ADA218076

Entities

People

  • David L. Kolthoff

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Accidents
  • Attachment
  • Center Of Gravity
  • Classification
  • Computer Programs
  • Computers
  • Eigenvalues
  • Engineering
  • Equations
  • Gravity
  • Mathematical Models
  • Mechanical Engineering
  • Michigan
  • Naval Architecture
  • Open Water
  • Ship Motion
  • United States

Readers

  • Control Systems Engineering.
  • Marine Hydrodynamics

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers