Heave and Pitch Dynamics of Shallow Draft Surface Vehicles

Abstract

This project's objective is to develop a model of the heave and pitch dynamics for a shallow draft surface vehicle. The model developed uses a novel approach of representing the ship dynamics in the frequency domain. The model is based on theoretical first-principles involving highly nonlinear equations that depend on the water wave frequency. Compared to time domain modeling and simulation approaches, the frequency domain model provides greater insight to the surface vehicle?s behavior over a wider operating range. To validate the model, experimental data from towing tank experiments with a 3 meter, shallow draft boat is compared to theoretical model results. The experimental data compares well with the model.

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Document Details

Document Type
Technical Report
Publication Date
Apr 10, 2012
Accession Number
ADA559832

Entities

People

  • George Piper
  • Owen Thorp
  • Roger S. Cortesi

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Buoyancy
  • Differential Equations
  • Electronic Warfare
  • Equations
  • Equations Of Motion
  • Experimental Data
  • Frequency
  • Frequency Domain
  • Frequency Response
  • Military Research
  • Phase Shift
  • Resonant Frequency
  • Simulations
  • Transfer Functions
  • United States
  • United States Naval Academy
  • Waves

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Marine Hydrodynamics