Nonlinear dynamic characteristics of a multi-module floating airport with rigid-flexible connections  

作　　者：Dao-lin Xu Hai-cheng Zhang Shu-yan Xia Chao Lu En-rong Qi Chao Tian You-sheng Wu 徐道临;张海成;夏淑炎;卢超;祁恩荣;田超;吴有生(State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body,Hunan University,Changsha 410082,China;China Ship Scientific Research Center,Wuxi 214082,China)

机构地区：[1]State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China [2]China Ship Scientific Research Center, Wuxi 214082, China

出　　处：《Journal of Hydrodynamics》2018年第5期815-827,共13页水动力学研究与进展B辑（英文版）

基　　金：Project supported by the National Basic Research Development Program of China(973 Program,Grant No.2013CB036104);the National Natural Science Foundation of China(Grant Nos.11472100,11702088);the High-Technology Ship Research Projects Sponsored by MIIT

摘　　要：This paper studies the dynamics of a multi-module floating airport with flexible connectors using the network theory. A mathematical model for a chain-type topology structure is developed by using the wave theory, and the models of a single floating module and the connector and mooring system. The nonlinear dynamics of the floating airport and the connector force are studied. A remarkable phenomenon of amplitude death is observed, as a weak oscillation state of all floating modules, an important state for the system global dynamic stability. The parametric domain for the onset of amplitude death is identified, and the effects of the wave height and the number of the floating modules on the dynamic stability are discussed. An application of the network theory in the marine engineering is illustrated with the introduction of a new concept for global dynamic stability for the floating airport.This paper studies the dynamics of a multi-module floating airport with flexible connectors using the network theory. A mathematical model for a chain-type topology structure is developed by using the wave theory, and the models of a single floating module and the connector and mooring system. The nonlinear dynamics of the floating airport and the connector force are studied. A remarkable phenomenon of amplitude death is observed, as a weak oscillation state of all floating modules, an important state for the system global dynamic stability. The parametric domain for the onset of amplitude death is identified, and the effects of the wave height and the number of the floating modules on the dynamic stability are discussed. An application of the network theory in the marine engineering is illustrated with the introduction of a new concept for global dynamic stability for the floating airport.

关 键 词：Floating airport network dynamics amplitude death rigid-flexible connection 

分 类 号：P756.8[天文地球—海洋科学] V351.23[航空宇航科学与技术—人机与环境工程]