MAXSURF Stability - Convergence Error

Discussion in 'Software' started by mrengine3r, Dec 18, 2022.

  1. mrengine3r
    Joined: Dec 2022
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    mrengine3r New Member

    Hello Everyone,
    I'm using Maxsurf Stability Ultimate CONNECT Edition (Student Version) while running stability for container vessel it shows error and shows these comment "stability was unable to converge to the desired precision".


    Please, help me to solve problem, thanks.

    Best regards
     

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  2. TANSL
    Joined: Sep 2011
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    TANSL Senior Member

    In addition to checking the accuracy in the calculations you are using, it is possible that the trim is excessive in that load condition.
     
  3. R. Thierry
    Joined: Mar 2023
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    R. Thierry Junior Member

    Hi,
    I'm also facing this problem with my model while running the KN analysis.
    upload_2023-3-22_15-7-45.png
    upload_2023-3-22_15-7-58.png upload_2023-3-22_15-8-14.png
    Can anyone suggest me what maybe the problem?

    Regards
     

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  4. TANSL
    Joined: Sep 2011
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    TANSL Senior Member

    Perhaps a perspective view can help analyze the problem.
    Probably the "Frame of Reference" is not well defined.
    The positions of CB and CF cannot be correct.
    The DWL is not seen. The DWL must be positioned with respect to the baseline.
     
  5. R. Thierry
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    R. Thierry Junior Member

    But how to define the frame of reference?
    upload_2023-3-22_15-36-59.png
    Is this ok?
     

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  6. TANSL
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    TANSL Senior Member

    Define the position of the Zero Point. The normal thing is to place the baseline passing through the lowest point of the hull. Next you give the height of the DWL, giving the draft at full load that you want to set. The software is then asked to place the App and Fpp at the fore and aft ends of the previously marked floatation.
    Use the Maxsurf user manual. I assure you that it is very useful.
     
  7. R. Thierry
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    R. Thierry Junior Member

    And what is the meaning of the Reference point?
     
  8. R. Thierry
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    R. Thierry Junior Member

     

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  9. TANSL
    Joined: Sep 2011
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    TANSL Senior Member

    @R. Thierry, I could answer as many questions as you want to ask but I assure you that we would save a lot of work, yours and mine, if you studied the Maxsurf user manual. It is not possible to use a program without first having studied, at least, its nomenclature.
     

  10. R. Thierry
    Joined: Mar 2023
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    R. Thierry Junior Member

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