Delayed positive feedback control for offshore platforms over networks

Author

Gao, Shou-Wan ; Tang, Gong-You

Author_Institution

Coll. of Inf. Sci. & Eng., Ocean Univ. of China, Qingdao, China

fYear

2010

fDate

9-11 June 2010

Firstpage

991

Lastpage

995

Abstract

The reduction of the dynamic response of an offshore structure subjected to irregular wave loads is of extreme significance in the aspects of serviceability, fatigue life and safety of the structure. This paper considers vibration control problem for offshore platform over communication networks. First, the offshore structure is simplified into a single degree of freedom (SDOF) system. Then, by using the advantageous effect of time delay on system performances, the delayed positive feedback control law is proposed. Numerical example shows that the presented control law is effective.

Keywords

delays; feedback; marine control; structural engineering; vibration control; delayed positive feedback control; fatigue life; irregular wave loads; offshore structure; single degree of freedom system; structure safety; time delay; vibration control problem; Control systems; Delay effects; Feedback control; Force control; Information science; Motion control; Networked control systems; Propagation delay; Safety; Vibration control;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Automation (ICCA), 2010 8th IEEE International Conference on

Conference_Location

Xiamen

ISSN

1948-3449

Print_ISBN

978-1-4244-5195-1

Electronic_ISBN

1948-3449

Type

conf

DOI

10.1109/ICCA.2010.5524082

Filename

5524082