A method includes calculating a frequency and a phase of a vibration of a floating vessel, generating a control signal based on the vibration frequency and the vibration phase, operating a motion compensation system of the floating vessel during an ith control cycle using the control signal to mitigate the vibration of the floating vessel, calculating a first vibration amplitude based on the control signal, updating one or more parameters including a magnitude of the control signal, a decay rate of the vibration, the vibration phase, and the vibration frequency using the first vibration amplitude, updating the control signal based on the one or more updated parameters, and operating the motion compensation system based on the updated control signal during an (i+1)th control cycle.
Offshore drilling platform vibration compensation using an iterative learning method
2018-12-11
Patent
Electronic Resource
English
OFFSHORE DRILLING PLATFORM VIBRATION COMPENSATION USING AN ITERATIVE LEARNING METHOD
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