Comparison of Predicted and Measured Towline Tensions

Abstract

The extreme towline tension prediction methods used by the U.S. Navy are based on analytical models developed by Milgram, Triantafyllou, Frimm and Anagnostou. The analysis of the test results for an instrumented offshore tow conducted in 1989 indicated that the analytical model underpredicted extreme tension. The reason for the underprediction of the extreme tension was the analytical model did not account for the second order ship surge motions and resulting low frequency tension fluctuations. Frimm and Milgram proposed a semi- empirical correction to the extreme tension model based on an analysis of the at sea test results.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1994
Accession Number
ADA283882

Entities

People

  • Gregory R. Thomas

Organizations

  • Massachusetts Institute of Technology

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  • Ground and Sea Platforms

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  • Accuracy
  • Computational Science
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  • Doppler Effect
  • Engineers
  • Frequency
  • Geometry
  • Information Science
  • Load Monitoring
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  • Mechanical Engineering
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  • Naval Architecture
  • Navy
  • Radar
  • Submarines

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  • Computational Modeling and Simulation
  • Marine Hydrodynamics