Delayed non-fragile H∞ control for offshore steel jacket platforms
Author(s)
Zhang, Bao-Lin
Huang, Zuo-Wu
Han, Qing-Long
Griffith University Author(s)
Year published
2015
Metadata
Show full item recordAbstract
This paper is concerned with a delayed non-fragile H∞ control scheme for an offshore steel jacket platform subject to self-excited nonlinear hydrodynamic force and external disturbance. By intentionally introducing a time-delay into the control channel, a delayed robust non-fragile H∞ controller is designed to reduce the vibration amplitudes of the offshore platform. The positive effects of the time delays on the non-fragile H∞ control for the offshore platform are investigated. It is shown through simulation results that (i) the proposed delayed non-fragile H∞ controller is effective to attenuate the vibration of the offshore ...
View more >This paper is concerned with a delayed non-fragile H∞ control scheme for an offshore steel jacket platform subject to self-excited nonlinear hydrodynamic force and external disturbance. By intentionally introducing a time-delay into the control channel, a delayed robust non-fragile H∞ controller is designed to reduce the vibration amplitudes of the offshore platform. The positive effects of the time delays on the non-fragile H∞ control for the offshore platform are investigated. It is shown through simulation results that (i) the proposed delayed non-fragile H∞ controller is effective to attenuate the vibration of the offshore platform; (ii) the control force required by the delayed non-fragile H∞ controller is smaller than that required by the delay-free non-fragile H∞ controller; (iii) the time delays can be used to improve the control performance of the offshore platform.
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View more >This paper is concerned with a delayed non-fragile H∞ control scheme for an offshore steel jacket platform subject to self-excited nonlinear hydrodynamic force and external disturbance. By intentionally introducing a time-delay into the control channel, a delayed robust non-fragile H∞ controller is designed to reduce the vibration amplitudes of the offshore platform. The positive effects of the time delays on the non-fragile H∞ control for the offshore platform are investigated. It is shown through simulation results that (i) the proposed delayed non-fragile H∞ controller is effective to attenuate the vibration of the offshore platform; (ii) the control force required by the delayed non-fragile H∞ controller is smaller than that required by the delay-free non-fragile H∞ controller; (iii) the time delays can be used to improve the control performance of the offshore platform.
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Journal Title
Journal of Vibration and Control (JVC)
Volume
21
Issue
5
Subject
Applied Mathematics not elsewhere classified
Electrical and Electronic Engineering
Mechanical Engineering