Comparison of Stresses Calculated Using the DAISY System to those Measured on the SL-7 Containership Program.

Abstract

A comparison of stresses calculated using the ABS/DAISY system with those measured on board the SL-7 Containership is undertaken to verify the analytical procedures used in assessing the strength of ships in a seaway. The comparisons and evaluations are performed for four different and progressively more severe technical conditions: dockside calibration, RMS stresses in head seas, instantaneous stresses in head seas and instantaneous stresses in oblique seas. The overall comparison between calculated and measured stresses for the dockside calibration is good where thermal effects were small but inconclusive elsewhere. The comparison of RMS stresses in head seas is generally satisfactory, using both the spectrum analysis approach and the equivalent regular wave approach, and the comparison of instantaneous stresses in head seas and in oblique seas is also good for the wave conditions considered.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1979
Accession Number
ADA069031

Entities

People

  • Hsien-yun Jan
  • Kuan-tao Chang
  • Matias E. Wojnarowski

Organizations

  • American Bureau of Shipping

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Bending Moments
  • Bending Stress
  • Birds
  • Coast Guard
  • Computer Programs
  • Computers
  • Dynamic Loads
  • Dynamic Pressure
  • Experimental Data
  • Finite Element Analysis
  • Measurement
  • Model Tests
  • Plastic Explosives
  • Pressure Distribution
  • Structural Analysis
  • Structural Response
  • Three Dimensional

Readers

  • Computational Modeling and Simulation
  • Mechanical Engineering/Mechanics of Materials.
  • Naval Architecture and Marine Engineering.