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This paper is concerned with the non-fragile sampled-data control problem for an offshore platform subject to parametric perturbations of the system and admissible gain variations of the controller. By purposefully introducing a time-varying time-delay into control channel, designing a sampled-data controller for the original system is transformed into synthesizing a state feedback controller for...
This paper is concerned with the problem of the robust sampled-data H∞ control for an offshore steel jacket platform subject to the self-excited wave force and the external disturbance. First, by using the input delay method, the corresponding closed-loop system with the sampling measurements is transformed into a continuous-time system. Then, based on a Lyapunov functional, the H∞ performance is...
This paper deals with the sampled-data active control problem for an offshore steel jacket platform with an active tuned mass damper mechanism. The offshore platform under consideration is subject to the nonlinear hydrodynamic self-excited wave force. By introducing an artificial time-delay, the corresponding closed-loop system is cast into a continuous-time system, and then based on a Lyapunov functional,...
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