Show simple item record

dc.contributor.authorMandal, S.
dc.date.accessioned2009-01-12T09:29:32Z
dc.date.available2009-01-12T09:29:32Z
dc.date.issued1997
dc.identifier.citationProceedings of the Second Indian National Conference on Harbour and Ocean Engineering (Inchoe-97), Thiruvananthapuram, December 7-10, 1997. Vol. 1, 368-377p.
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/2083
dc.description.abstractUnivariate system identification models are, in general, developed based on teh assumption that offshore dynamic systems are stationary random processes. For nonstationary processes, a method is adopted to transform the time series into wide-sense-stationary processes. Then the time series are modelled by the maximum entropy method which is formulated here for spectral estimation of platform deck displacements. The lower order maximum entropy spectra of nonstationary platform deck displacements are compared with fast Fourier transform spectra and show good agreement. However, the higher order maximum entropy model can be used for better representation of nonstationary motions. This method also reduces long time series of nonstationary offshore data into a few values which are teh coefficients of the maximum entropy model.
dc.language.isoen
dc.publisherCent. for Earth Sci. Stud., Cochin (India)
dc.rightsCopyright [1997]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
dc.subjectmodels
dc.subjectoffshore
dc.subjectdynamics
dc.subjectmodelling
dc.subjectentropy
dc.titleParametric modelling of nonstationary platform deck motions
dc.typeConference Article


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record