Optimal Vibration Control for Offshore Structures Subjected to Wave Loading with Input Delay
The optimal vibration control of a jacket-type offshore platform system with input delay by using active mass damper (AMD) is considered. The linearized Morison equation is employed to estimate wave-induced forces, the dominant loads that offshore structures are subjected to, which can be taken as harmonic excitation for the system. Firstly, an Artstein model reduction method is applied to reduce the system free of delay. Secondly, a Feedback and Feedforward (FFOC) algorithm is brought forward to damp the forced oscillation in an optimal fashion. Finally, a numerical example of the FFOC law for a jacket-type offshore platform by using of AMD is studied. The simulation results show the algorithm proposed is efficient.
optimal control vibration control AMD delay harmonic ezcitation
Hai-Hong Wang
College of Information Science and Technology QingDao University of Science and Technology Qingdao,266061,China
国际会议
长沙
英文
1797-1800
2009-04-11（万方平台首次上网日期，不代表论文的发表时间）