Abstract
Steel Lazy Wave Riser (SLWR), which is a kind of ultra deepwater riser system, is a slender structure with length of over 2,000m. The shape design of the SLWR is very important for operational stability of the SLWR, because the SLWR has strong structural characteristics and are affected by various ocean environmental loads. In this research, the simulation-based design process is studied to find the optimal shape of SLWR at the installation. First, available parameters and responses are derived and the dynamic characteristics of them were analyzed to select the effective parameters on the responses using multibody dynamic simulation. Second, the simulation-based design framework for shape design of the SLWR was developed using opensource-based PIDO(Process Integration and Design Optimization) software, and developed dynamic simulation model. Finally, the shape design of the SLWR at the installation was performed using the developed design framework.
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