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Coupling Of Qblade-ANSYS Aqwa
How can I apply hydrostatic data results in QBlade, which are extracted from ANSYS Aqwa?
Basically, my aim is to perform fully coupled dynamic analysis on the platform (hydrostatic analysis in ANSYS AQWA) and aero-servo-elasto in QBlade.
Hello,
you can use hydrostatic results from ANSYS Aqwa in QBlade in three ways:
Import WAMIT-formatted hydrodynamic files (.hst)
If Aqwa exports WAMIT-compatible output, QBlade can read it directly:
Hydrostatic stiffness: the
.hstfile (applied automatically at the hydrodynamic reference point)
Keyword: POT_HST_FILE
Specify the 6×6 hydrostatic stiffness matrix explicitly
If Aqwa provides a lumped 6×6 hydrostatic restoring matrix:
Define reference point:
REF_HYDRO_POSProvide matrix:
SUB_HYDROSTIFFNESS
Member-based hydrostatic stiffness (explicit buoyancy)
Instead of a global stiffness matrix, QBlade can compute hydrostatic restoring forces from the submerged volume of each structural member:
Defined in the
SUBMEMBERStable
See: https://docs.qblade.org/src/user/turbine/substructure.html
Best regards,
David
