aqwa

Hey mate, currently i working on a personal project about effect of chine with seakeeping performance. The boat that i gonna modified was the NPL hull, which are the experiment hull. but in the paper didn't give a LCG data. so how can i calculate the radius gyration of ship when there is no an...

Hello experts, Problem: ship jetty mooring. need to prevent vessel from moving towards the jetty. I am trying to add two shore fenders which will prevent my tanker from translating into the shoreside. I havent modeled Jetty structure. How exactly to arrest vessel translating "into" the jetty? I...

Hi, I am a beginner to Ansys AQWA and performing a hydrodynamic simulation for floating spar platform but i have recieved an error while solving the simulation setup for pressures and motions result. Error description: ILLEGAL CONNECTIVITY. Element 18882 is joined to element 25371 and element...

I am trying to perform a frequency statistics analysis for a heavy lift vessel with forward speed in Ansys Aqwa using Workbench to calculate the motions and accelerations on cargo and vessel. I have performed for zero speed, got the RAOs in hydrodynamics diffraction and frequency statistics in...

Hi, For a student project related to the 'Radiation-Diffraction' analysis of a floating offshore wind turbine (FOWT) foundation, I need some help with Ansys AQWA. I am working with a semi-submersible foundation that has three vertical columns (12 m dia) which are interconnected by bracings (0.5...

Hey guys I'm working with simulations in Ansys (AQWA) and I'm having trouble compiling a dll that will export functions for the simulation. After replacing the original user_force.dll in the bin/win64 folder with the generated one, the AQWA could not even start at the very beginning. Can...

Dear Boat Design Forum, I start working with Ansys Aqwa recently, but I have general experience in Ansys. I am trying to simulate a mooring system of a floating LNG barge in Ansys Hydrodynamic Diffraction and Response Module. HD Module's solve feels nice and ends (with several warnings)...

Hello, I need help regarding the Air Gap of Semi Submersible Structure in Ansys AQWA. In Pressure and Motions of Air Gap in Hydrodynamic Diffraction Analysis, The height of the semi submersible is 36 m and draft operational is 20.5m. It says maximum value is 22m and minimum value is -27m, and...

Hello, I am senior student at the university and need urgent help on how to add mooring lines on ANSYS AQWA for Semi Submersible Floating Structure. If there is ordered way or screenshots on how to do it, it will be appreciated. Thanks in advance, Regards

Hi, As I understand, the hydrodynamic database (RAOs, forces, damping, etc) aqwa creates is about the centre of gravity. According to the manual (25.7. The REFP Data Record - New Hydrodynamic Reference Point...

I have a problem in validating the results of a ship motion from aqwa and maxsurf. When i calculated rao, the result look like same. But when i calculated rms of rolling motion. The result too much different. My assumption, i cant define how to calculate rms motion using wave frequency...