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Pure delayed non-fragile control for offshore steel jacket platforms subject to non-linear self-excited wave force

journal contribution
posted on 01.08.2018, 00:00 authored by B-L Zhang, Qing-Long HanQing-Long Han, Z-W Huang
This paper is concerned with pure delayed non-fragile control for an offshore steel jacket platform subject to non-linear self-excited wave force. By purposefully introducing a proper time-delay into control channel, a pure delayed non-fragile controller (DNFC) is proposed to improve performance of the offshore steel jacket platform. The positive effects of time-delays on non-fragile stabilization control for the system are investigated. It is shown through simulation results that (i) the DNFC and the delay-free non-fragile controller are capable of attenuating the vibration of the offshore platform to almost the same level, while the required control force under the DNFC is less than that under the delay-free one; and (ii) both the oscillation amplitudes of the offshore platform and the ranges of the control force under the pure delayed state feedback controller (DSFC) are smaller than the ones under the non-linear controller and the dynamic output feedback controller; and (iii) the oscillation amplitudes of the offshore platform under the DSFC are almost the same as the ones under integral sliding mode controller and the delayed dynamic output feedback controller, while the control force required by the former is less than the one by the latter.

Funding

Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)

History

Volume

77

Issue

3

Start Page

491

End Page

502

Number of Pages

12

eISSN

1573-269X

ISSN

0924-090X

Publisher

Springer Netherlands

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

China Jiliang University

Author Research Institute

Centre for Intelligent Systems

Era Eligible

Yes

Journal

Nonlinear Dynamics