Active Control of Offshore Steel Jacket Platforms by Bao-Lin Zhang & Qing-Long Han & Xian-Ming Zhang & Gong-You Tang

Author:Bao-Lin Zhang & Qing-Long Han & Xian-Ming Zhang & Gong-You Tang
Language: eng
Format: epub
ISBN: 9789811329869
Publisher: Springer Singapore

5.3.1 Simulation Results for the Nominal System

In this subsection, based on Algorithm 1, we first design a sliding mode controller with mixed current and delayed states (SMC-MCDS) in the form (5.11) for the nominal system (2.​45 ) and compare the SMC-MCDS with the delay-free sliding mode controller (SMC) in [99] from the controlled oscillation amplitudes of the offshore platform and the size of control force. Then, we investigate the effects of time-delays on the sliding mode control for the offshore platform. Third, we compare the SMC-MCDS with a nonlinear controller (NLC) [65], a dynamic output feedback controller (DOFC), and a delayed dynamic output feedback controller (DDOFC) [100], respectively, to show some advantages of the SMC-MCDS.

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