Title :
Optimal sliding mode control based on sensitivity approach for nonlinear systems of jacket offshore platforms
Author :
Liang Yan-Jun ; Tang Gong-You
Author_Institution :
Coll. of Inf. Sci. & Eng., Ocean Univ. of China, Qingdao, China
Abstract :
The vibration control problem of offshore jacket platforms with tuned mass damper (TMD) is studied. The linearized Morison equation is employed to estimate the wave loads. A coupled multiple-degrees-of-freedom (MDOF) nonlinear dynamical model of offshore platforms is established. Based on optimal control theory, an optimal sliding manifold is proposed and a vibration controller is developed for the offshore structures under wave loading for the first time. The controller performance is judged by simulations.
Keywords :
nonlinear systems; offshore installations; optimal control; structural engineering; variable structure systems; vibration control; linearized Morison equation; multiple-degrees-of-freedom; nonlinear dynamical model; nonlinear system; offshore jacket platform; offshore structure; optimal sliding manifold; optimal sliding mode control; tuned mass damper; vibration controller; wave loading; Acceleration; Force; Manifolds; Mathematical model; Optimal control; Vibration control; Vibrations; Nonlinear Systems; Optimal Control; Sliding Mode Control;
Conference_Titel :
Control Conference (CCC), 2010 29th Chinese
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-6263-6
