A linear mathematical model representing the dynamics of offshore towers is considered. An on-line identification scheme is proposed to estimate the modal parameters by using noisy response measurements obtained during tower normal operation. A technique is presented to extract the damping and stiffness matrices required for incipient failure detection from the identified modal parameters. An illustrative numerical example is presented.
On line extraction of offshore towers vibration parameters from response measurements
On-line Ermittlung der Schwingungsparameter von Offshore-Tuermen aus Beanspruchungsmessungen
1988
6 Seiten, 12 Quellen
Conference paper
English
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