Interfaces to ANSYS Aqwa

Pressures and motions from a diffraction/radiation analysis in ANSYS Aqwa software can be transferred to an ANSYS Asas model. Each combination of wave frequency, heading, height and phase becomes a quasi-static load case. This feature can be used in transferring wave loads for structures composed of both diffracting and tubular elements, such as what may occur in semi-submersibles or truss-spars.

Meshes for the ANSYS Aqwa and ANSYS Asas models can be developed independently, since structural requirements are quite different from the much-simpler hydrodynamic model. The mapping feature automatically interpolates the correct pressures at the structural nodes. For structural elements that cut the water surface, corrections are made to the resulting pressures to ensure that the total loads applied are correct.

ANSYS Aqwa can be used as a source of response amplitude operator (RAO) information for simulation of large floating body response to a wave environment.

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 Hull pressure plot and stress resultants in ANSYS Asas application after pressure mapping