Optimum Vessel Performance in Evolving Nonlinear Wave Fields

Abstract

This report summarizes the research conducted under the MURI entitled "Optimal Vessel Maneuvering in Evolving Nonlinear Wave Fields." A radar system was developed to measure the wave field around the ship. A nonlinear pseudo-spectral wave model that accounts for wave-wave interactions, wave-current interactions, wave breaking and wind-wave effects has been developed to forecast in time and space the evolving waves around the ship. The radar wave field predictions that initialize the wave field model are improved using assimilation techniques. Two techniques were developed to compute the responses of the ship to the predicted wave field: A body-exact strip theory and a FFT accelerated boundary element method. The optimal path through the wave field that minimizes ship motions and travel time is found using a new dynamic programing model. Various control algorithms were investigated to allow the ship to follow the optimum path.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2012
Accession Number
ADA571589

Entities

People

  • Robert F. Beck

Organizations

  • University of Michigan

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Algorithms
  • Computational Fluid Dynamics
  • Computational Science
  • Control Systems
  • Doppler Effect
  • Electrical Solitons
  • Geography
  • Measurement
  • Model Predictive Control
  • Naval Architecture
  • Physics Laboratories
  • Radar
  • Ship Motion
  • Three Dimensional
  • Travel Time
  • Two Dimensional
  • Waves

Readers

  • Coastal Oceanography
  • Marine Hydrodynamics
  • Operations Research

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers