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Precribing motion, velocity and acceleration
Quote from Arun on 6. August 2025, 03:46Hi,
I am currently trying to use the SIL feature on python to prescribe motion to a floater with an MHK turbine. It seems the SIL only has the feature to set the displacement of the floater at each time step (QBLADE.setTurbinePosition_at_num(surge,sway,heave,roll, pitch, yaw, 0)) but not the velocity and acceleration. How can I prescribe these parameters? Thank you.
Best regards,
Arun
Hi,
I am currently trying to use the SIL feature on python to prescribe motion to a floater with an MHK turbine. It seems the SIL only has the feature to set the displacement of the floater at each time step (QBLADE.setTurbinePosition_at_num(surge,sway,heave,roll, pitch, yaw, 0)) but not the velocity and acceleration. How can I prescribe these parameters? Thank you.
Best regards,
Arun

Quote from David on 6. August 2025, 23:30Hi Arun,
You can reposition the floater at each time step with
setTurbinePosition()
. When you provide its current position, whether from a co-simulation or another function, the solver will handle the kinematics automatically. Velocity is the first time derivative of position you prescribe, and acceleration is the second.Best,
David
Hi Arun,
You can reposition the floater at each time step with setTurbinePosition()
. When you provide its current position, whether from a co-simulation or another function, the solver will handle the kinematics automatically. Velocity is the first time derivative of position you prescribe, and acceleration is the second.
Best,
David
