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Estimation of ship roll parameters in random waves
journal contribution
posted on 2023-06-08, 11:01 authored by J Brian Roberts, Julian DunneJulian Dunne, A DebonosThe problem of estimating the parameters in an equation of roll motion from roll measurements only, taken in an irregular sea, is discussed. A single degree of freedom equation of motion is assumed, with a wide-band stochastic input and with a linear-in-the-parameters representation of both the damping and restoration terms. A method based on the Markov property of the energy envelope process, associated with the roll motion, is developed which enables all the relevant parameters to be estimated. The method is validated by applying it to some simulated data, for which the true parameters are known.
History
Publication status
- Published
Journal
Journal of Offshore Mechanics and Arctic EngineeringISSN
0892-7219Publisher
American Society of Mechanical EngineersExternal DOI
Issue
2Volume
114Page range
114-121Department affiliated with
- Engineering and Design Publications
Full text available
- No
Peer reviewed?
- Yes