Ship Roll Mode Information Extracted From Sea Trial Data

Abstract

Random Decrement (RANDEC) Analysis was applied to time histories of roll motion for the Spruance class destroyer. The data was generated from sea trials conducted on a ship in 1987. The RANDEC process was applied to obtain estimates of roll-resonance modal damping and frequencies due to ship motion excitation by random-natured hydrodynamic forces and moments. Prior to applying the RANDEC technique to ship data, a numerical algorithm was developed and validated using reference data sets with known dynamic traits approaching that expected of the ship.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1991
Accession Number
ADA245963

Entities

People

  • Mickie K. Wiser

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Aircraft Design
  • Algorithms
  • Amplitude
  • Classification
  • Computers
  • Data Sets
  • Databases
  • Frequency
  • Generators
  • Models
  • Naval Vessels
  • Resonant Frequency
  • Ship Models
  • Ships
  • United States
  • Wind Tunnels

Readers

  • Computational Modeling and Simulation
  • Marine Hydrodynamics
  • Naval Architecture and Marine Engineering.

Technology Areas

  • AI & ML
  • AI & ML - Bayesian Inference