A Random Vibration Model for Cable Strumming Prediction,

Abstract

A random vibration predictive model for cable strumming response to ocean currents is presented. The model is justified on the basis of an extensive examination of four different field experiments, conducted for the purpose of studying vortex induced cable vibration. The examination of these data reveals that real world cable strumming is predominantly a random process that cannot be predicted on the basis of extending laboratory observations of essentially deterministic phenomena such as lockin. Representative data are presented to support these conclusions. The proposed predictive model is demonstrated by two examples: the response of a uniform cable in a non-uniform flow and the response of a cable non-uniform in diameter to a uniform flow. The results of the second example are favorably compared to measurements made in a simple field test. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1979
Accession Number
ADA083774

Entities

People

  • J. Kim Vandiver
  • Michael Kennedy

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Sensors

DTIC Thesaurus Topics

  • Accelerometers
  • Bandwidth
  • Composite Materials
  • Cross Flow
  • Databases
  • Engineering
  • Equations
  • Flow
  • Frequency
  • Frequency Bands
  • Laboratory Tests
  • Random Vibration
  • Resonant Frequency
  • Reynolds Number
  • Standards
  • Vibration
  • Wave Propagation

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Theoretical Analysis.