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

fYear

2010

fDate

29-31 July 2010

Firstpage

728

Lastpage

732

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (CCC), 2010 29th Chinese

Conference_Location

Beijing

Print_ISBN

978-1-4244-6263-6

Type

conf

Filename

5573356