A Random Vibration Model for Cable Strumming Prediction

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 re...

Full description

Saved in:
Bibliographic Details
Main Authors: Kennedy,Michael, Vandiver,J Kim
Format: Report
Language:English
Subjects:
CABLES
COMMUNICATION AND RADIO SYSTEMS
MATHEMATICAL MODELS
Numerical Mathematics
OCEAN CURRENTS
Radio Communications
RANDOM VIBRATION
STRUMMING
WUNR294041
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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)