Multiple-Step Predictive Control for Offshore Structures

作     者：李华军 Sau-Lon JAMES HU 

作者机构：College of Engrg.Ocean University of Qingdao ProfessorMember of ASCEDepartment of Ocean EngrgUniversity of Rhode IslandNarragansett 

出 版 物：《China Ocean Engineering》 (中国海洋工程（英文版）)

年 卷 期：1999年第14卷第3期

页      面：231-246页

核心收录：

学科分类：081505[工学-港口、海岸及近海工程] 08[工学] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 0814[工学-土木工程] 082401[工学-船舶与海洋结构物设计制造] 

基　　金：National Science Foundation of U.S.A.under grant CMS-9503533 

主　　题：active control offshore structure predictive control control algorithm wave load vibration 

摘      要：Ocean wave propagation is slow, visible and measurable, so a wave theory can be used to approximately predict the imminnent wave force on an offshore structure based on measured, real-time wave elevation near the structure. This predictability suggests the development of a more efficient algorithm, than those that have been developed for structures under wind and seismic loads, for the active vibration control of offshore structures. The present study delveops a mutiple-step predictive optimal control (MPOC) algorithm that accounts for multiple step external loading in the determination of optimal control forces. The control efficiency of the newly developed MPOC algorithm has been Investigated under both regular (single-frequency) and irregular (multiple-frequency) wave loads, and compared with that of two other well-known optimal control algorithms: classical linear optimal control(CLOC) and instantaneous optimal control(IOC).