Maxsurf Stability for bow thruster

Hello,

I have a hull with a cut for the bow thruster. Now I have to do analysis with Maxsurf Stability Module. How can I add that cut in Maxsurf Stability Module? Please Help me.

  • https://communities.bentley.com/cfs-file/__key/communityserver-discussions-components-files/343374/ThrusterModel.msdhttps://communities.bentley.com/cfs-file/__key/communityserver-discussions-components-files/343374/ThrusterModel.hmd

    HI Ocean,

    There are 2 ways you can do this:

    You can model it in modeler to be as it looks in real life. Add a transverse cylinder and trim the hull and the cylinder to each other. Take a look at the Offshore Supply Vessel Design Quickstart for a good example here (File | Design Quickstarts)

    The problem with this method is that if you have 50 or 100 hydrostatic sections in your model, then only one or two of them will intersect the bowthruster. So you won't get an accurate representation of the volume.

    The second method is to create a non-buoyant volume using boundary surfaces. The non-buoyant volume will be defined with at least 12 sections, so the volume is accurately represented. Further, you can set a permeability to account for the propeller and boss.

    The process here is:

    - In Modeler, create a transverse cylinder with end caps. Set the type of those surfaces to Structure in the Properties window.

    - Do not trim the hull or the cylinder to each other.

    - Open the model in Stability

    - Select all of the surfaces that define the extents of your thruster cylinder in the Assembly Pane. Right click and "Create Tank From Boundary Surfaces"

    - In the Room Definition window, change the type to Non-Buoyant Volume.

    - Ensure that display of Non-buoyant volumes is turned on.

    Answer Verified By: Ocean Man 

  • Thanks for your answer. I have got it. But it will more easy for me, If you could suggest me a short video for that. I would be grateful to you.

  • I am trying to open your hmd file in Maxsurf Stability Module, But it is not working. It shows that "The file you are reading is incompatible with this program version". I would like to mention that, I am using MAXSURF Stability Enterprise CONNECT Edition x64 Version : 21.14.00.04.

  • Hi Ocean,

    You need to have the *.hmd and *.msd files saved in the same folder, then open the msd.

    The latest version of MAXSURF (v2.03) has a more useful error message.

    James

    Answer Verified By: Ocean Man