• How to get the linear damping coefficient considered in time domain?

    I wanted to compare the damping coefficients considered in time domain against the coefficients calculated using BV NR 493 rules (attached). Can anyone tell me how to get the linear damping coefficients used in time domain? Otherwise, can we input the…
  • Damping of SPAR floating structure using heave plate

    Hi all, I really need some help with my undergraduate thesis. So, I've been analyzing the effects of heave plate in the keel of SPAR to motion response of the SPAR structure using MOSES, and experimental trials. so here is my question. As far as I know…
  • reporting of viscous roll damping in MOSES

    For a standard pontoon after a 3DDIFF hydrodynamic run, if I export the damping matrix from the freq_res menu using matrices or equ_sum I do not see a change in the roll damping value irrespective of the wave steepness I use in the RAO command prior.…
  • Damping

    When running a wave response analysis, what exactly is the damping value that should be input in the wvrinp file? Is it the damping ratio ξ (actual damping/critical damping) or the total damping 2*ξ ? And so, if we say that a structure has 7% damping…
  • hydrofoil on patrol vessel

    Hi Bentley, I'm a student and currently designing a hydrofoil known as the "hullvane" for patrol vessels in my final year project. I have this issue of not getting the results I want in Maxsurf motions regarding the added resistance, heaving/pitching…