Introduction |
 
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Introduction |
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This example considers the analysis of a multiple riser system in a Lazy-S configuration. This configuration, which is achieved by draping risers over the tethered mid-water arch, allows the upper catenary risers to absorb the vessel motions while isolating the lower catenary sections and any attached flowlines. The example consists of a static analysis, subject to gravity and buoyancy loads only, followed by a dynamic analysis subject to wave loading and first-order vessel motions.
This example illustrates a number of important modelling features in Flexcom, specifically:
•Modelling of mid-water arch systems.
•Curved contact surface modelling.
The multiple riser system is shown in the first figure below, while a more detailed view of the mid-water arch is shown in the second figure.
Multiple Riser System
Mid-water Arch Detail