To improve the safety and reliability of offshore structures subject to wave loading, active vibration control problem is always one significant issues in field ocean engineering. This paper deals with near–optimal a nonlinear energy sink (NES) mechanism. By taking dominant mode structure NES into account, dynamic model steel–jacket loading presented first. Then, using parameter perturbation ap...

This paper addresses a detailed analysis of the ice–structure interaction process phase-locked ice crushing (PLC) against offshore structures. Directly measured load, structure response data, and in situ observation from field measurements on Molikpaq lighthouse jacket platform were used study. summarizes new ductile damage-collapse (DDC) failure mechanism for PLC process. The DDC shows that is...

This paper examines the unified dissipative performance of Offshore Steel Jacket Platforms (OSJPs) which include actuator failures and probabilistic delays, through a resilient reliable sampled-data controller. In detail, random variables fetching Bernoulli distribution are treated in particular for stochastic time-delays. By implementing Lyapunov–Krasovskii functions(LKF) together with Second ...

− A new controlled-clearance pressure balance has been developed to improve the hydraulic pressure standard for pressures up to 1 GPa. For several controlledclearance piston-cylinders, characterization experiments based on the Heydemann-Welch model were performed to estimate the effective area of them. The results for the piston-cylinders of different pressure ranges are exemplified in this pap...