Impact Burial of Cylinders in Soft Marine Sediments

Abstract

This paper presents results of experimental deployment of a large instrumented cylinder of variable nose geometry and center of mass offset. Data on three tests series in the Gulf of Mexico are presented and analyzed statistically. The stochastic nature of the problem of the cylinder tree-falling through water is outlined and described as an input to the current impact burial prediction package. This predictive package is analyzed in deterministic and stochastic Monte-Carlo frameworks, utilizing the experimentally developed statistical description of all the model input parameters, including the environmental, pertaining to the strength of the sediments, and dynamic, describing the velocities and orientations of the cylinder on impact with the sediment. Significance of the center of mass offset on the behavior of the cylinder is underlined. The importance of accurate knowledge of the sediment shear strength is stressed, as an important factor in predicting penetration burial of large cylinders.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 22, 2004
Accession Number
ADA444550

Entities

People

  • Andrei Abelev
  • P. J. Valent

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Algorithms
  • Bearing Strength
  • Civil Engineering
  • Cylindrical Bodies
  • Data Acquisition
  • Data Science
  • Engineering
  • Experimental Data
  • Geometry
  • Information Processing
  • Information Science
  • Monte Carlo Method
  • Predictive Modeling
  • Seabed
  • Shear Strength
  • Statistical Analysis
  • Statistical Distributions

Readers

  • Acoustical Oceanography.
  • Computational Modeling and Simulation
  • Structural Dynamics.