Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/114810
Title: DYNAMIC SIMULATION OF MARINE STRUCTURES WITH APPLICATIONS IN FLOAT-OVER DECK INSTALLATIONS
Authors: CHEN MINGSHENG
Keywords: Float-over deck installation, time-domain simulation, Cummins equation, State-space model, Wave-induced impacts, Nonlinear dynamics
Issue Date: 31-Mar-2014
Source: CHEN MINGSHENG (2014-03-31). DYNAMIC SIMULATION OF MARINE STRUCTURES WITH APPLICATIONS IN FLOAT-OVER DECK INSTALLATIONS. ScholarBank@NUS Repository.
Abstract: THIS THESIS PROPOSES THE METHODOLOGY OF COMBINING HYDRODYNAMIC ANALYSIS OF MARINE STRUCTURES TOGETHER WITH DYNAMIC ANALYSIS OF IMPACTING OSCILLATORS, TO INVESTIGATE THE WAVE-INDUCED IMPACTS ARISING FROM THE FLOAT-OVER DECK INSTALLATIONS. A CONSTANT PARAMETER TIME-DOMAIN MODEL IS ESTABLISHED FROM THE CUMMINS EQUATION BY REPLACING THE TIME-CONSUMING CONVOLUTION INTEGRAL WITH A STATE-SPACE MODEL. BASED ON THIS MODEL, BOTH THE SINGLE-DEGREE-OF-FREEDOM (SDOF) WAVE-INDUCED IMPACT MODEL AND THE COUPLED HEAVE-ROLL-PITCH IMPACT MODEL ARE ESTABLISHED BY MODELLING THE IMPACT OBSTACLES SUCH AS THE LEG MATING UNITS (LMUS), DECK SUPPORT UNITS (DSUS) AND FENDERS AS SPRING-DAMPER SYSTEMS. THE SDOF WAVE-INDUCED IMPACT MODEL IS APPLIED TO STUDY THE FUNDAMENTAL NONLINEAR BEHAVIOUR OF THE FLOAT-OVER SYSTEM INDUCED BY THE WAVE-INDUCED IMPACTS AND TO VALIDATE THE METHODOLOGY. THE COUPLED IMPACT MODEL IS APPLIED TO INVESTIGATE THE WORKABILITY AND OPERABILITY OF THE FLOAT-OVER DECK INSTALLATION ONTO EITHER A
URI: http://scholarbank.nus.edu.sg/handle/10635/114810
Appears in Collections:Ph.D Theses (Open)

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