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Hello,

It is possible to calculate the instantaneous displacement of a structure in waves. To do this in Aqwa Workbench, the time domain Analysis Type should be set to â€˜Irregular Wave Responseâ€™ or â€˜Regular Wave Responseâ€™, as this directs the Aqwa solver to calculate the hydrostatic pressure under the instantaneous wave surface. Drift loads will not be included, however.

Right-click on the time domain Hydrodynamic Response Solution, then Insert Result > Structure Forces > Hydrostatic Only. In the result details, change the Component to Global Z. Solve and evaluate this result, then divide the values by rho*g (where rho is water density and g is gravitational acceleration) to get the instantaneous volumetric displacement.

I hope this helps.

Mike

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