May 9, 2023 at 1:47 pmEugenio Baita SaavedraSubscriber
We are using the AQWA to determine the hydrodynamic behavior of a TLP platform (Tension Leg Platform).
To model tendons, AQWA offers the Tether/Riser element, which is geometrically defined as a tubular section (input parameters: Outer diameter and thinkness). However, our device claims to use steel wire tendons. We would like to know what is the best way to proceed in this case: Whether to use Tether/Riser by defining the Outer diameter and thinkness parameters in such a way that an inertia equivalent to that of the design cable is obtained; or use the Catenary element and define a linear wire?
May 10, 2023 at 3:59 pmMike PettitAnsys Employee
You can define the Tether/Riser Section so that the internal diameter is zero, i.e. set the Thickness to be exactly half of the Outer Diameter.
Please note that the Aqwa solver assumes the tendons are nearly vertical, so you may get some strange results if the platform moves laterally far away from the anchor positions.
I hope this helps.
May 10, 2023 at 4:22 pmEugenio Baita SaavedraSubscriber
many thanks you for your response.
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