Maneuvering in a Seaway

Abstract

Two codes have been developed to predict maneuvering in a seaway. The first uses a quasi-steady analysis with Fourier decomposition to determine the ship responses and find the optimum path for minimum motions. The second extends the existing body-exact strip theory (UMBEST) to arbitrary paths. Several different controllers, including a model predictive controller with constraint enforcement capability and a back-stepping nonlinear controller with desired stability margins, have been developed that will enable safe and effective ship maneuvering in a seaway while satisfying seakeeping constraints.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2011
Accession Number
ADA542638

Entities

People

  • Jing Sun
  • Robert F. Beck

Organizations

  • University of Michigan

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Algorithms
  • Closed Loop Systems
  • Computational Complexity
  • Computational Fluid Dynamics
  • Computations
  • Computer Programs
  • Control Surfaces
  • Control Systems
  • Equations
  • Equations Of Motion
  • Euler Equations
  • Frequency
  • Model Predictive Control
  • Seakeeping
  • Ship Motion
  • Simulations
  • Time Domain

Readers

  • Control Systems Engineering.
  • Marine Hydrodynamics
  • Operations Research