LECTURE NOTES ON SHIP MOTION IN IRREGULAR SEAS

Abstract

Two papers are presented. The first is The Superposition Principle Applied to the Prediction of Ship Behavior. An outline is given of the procedure usually followed in predicting the response of a ship to an irregular storm sea on the basis of the superposition of its responses to all the components which make up that sea. A non-dimensional form of presentation is then developed which makes it possible to visualize and interpret the results of comparative calculations for different ships. The second paper is Acceleration due to Vertical Motions of a Ship. The vertical acceleration of a point in a ship subject to pitching and heaving motions is considered by combining vectorially the pitching and heaving accelerations. A method of estimating the expected extreme values in irregular seas is then presented and compared with full-scale ship data.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1963
Accession Number
AD0426706

Entities

People

  • Edward V. Lewis
  • Rutger Bennet

Organizations

  • Webb Institute

Tags

DTIC Thesaurus Topics

  • Angular Acceleration
  • Angular Motion
  • Bending Moments
  • Birds
  • Frequency
  • Froude Number
  • Hulls (Marine)
  • Measurement
  • Model Basins
  • Model Tests
  • New York
  • Plotting
  • Ship Model Basins
  • Ship Models
  • Ship Motion
  • Ships
  • Stochastic Processes

Readers

  • Computational Modeling and Simulation
  • Marine Hydrodynamics