Accession Number:

ADA083774

Title:

A Random Vibration Model for Cable Strumming Prediction,

Descriptive Note:

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF OCEAN ENGINEERING

Personal Author(s):

Report Date:

1979-01-01

Pagination or Media Count:

20.0

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

Subject Categories:

  • Numerical Mathematics
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE