| Offshore platform,a structure for offshore oil and gas resource,will be affected by environmental loads for a long time in an intricate marine environment.These external loads may cause damage to the mechanical structure of offshore platforms.Therefore,it is of great significance to study the methods for effectively controlling the vibration response of off-shore platform.In particular,the research of network-based active damping control methods for offshore platforms based on event triggering is worthy of in-depth research.This paper mainly studies the external wave forces and event-triggered fuzzy H_? control method for offshore platforms under the action of self-excited wave forces.The details are as follows:First,for the jacketed offshore platform with AMD device subjected to external wave force,the event-based fuzzy control method of the off-shore platform is studied.First,for the offshore platform with active mass damper AMD device,a An event-based fuzzy controller design method and a sufficient condition for the asymptotic stability of the closed-loop system of the offshore platform.Finally,simulation examples show that the proposed control method can effectively reduce the vibration amplitude of the platform under the action of wave force and improve the system system Security performance and can save network resources.Secondly,for the TMD offshore platform with active control device subjected to nonlinear self-excited wave forces and external wave forces,the event-based fuzzy control method of the offshore platform under the network environment is studied.First,based on the established TS fuzzy model.Second,Based on the integral inequality method,the condition of the event-based fuzzy control law is given,and then the controller design method is given.The simulation results show that the event-triggered H_? fuzzy controller guarantees the offshore platform Under the premise of performance,it can also effectively save network communication resources. |
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