Approved stability software

Discussion in 'Stability' started by valber, Jul 18, 2010.

  1. valber
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    valber Naval Architect

    We need the stability software which is approved by any classification society.
    Please, advise something.
    Thank you.
     
  2. Paul Kotzebue

    Paul Kotzebue Previous Member

    GHS by Creative Systems is widely accepted.
     
  3. MikeJohns
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    MikeJohns Senior Member

    Do you want a hydrostatics design package or a stability package for a ships master like cargomax ?

    Hydrostatics are accepted ( not specifically approved) from most of the major outfits so long as they are free to trim and can accommodate free surface calcs and damaged stablity.

    Hydromax and GHS are commonly used. I used to run designs in different packages as a cross check, I've never found any discrepancy. Guillermo had some trouble with some software he was using once, can't remember which package.

    Read Andrews response 2nd post in this thread click on link http://www.boatdesign.net/forums/design-software/maxsurf-autoship-9775.html
     
  4. Paul Kotzebue

    Paul Kotzebue Previous Member

    Double check with the classification society to make sure the hydrostatics software is acceptable. For example, ABS will not accept MAXVCG calculations from AutoHydro if they differ from GHS.
     
  5. Guillermo
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    Guillermo Ingeniero Naval

  6. valber
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    valber Naval Architect

  7. gadfly2
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    gadfly2 Junior Member

    Valber

    I think it very much depends on what you wish to use the stability software for. Generally intact stability software packages are not 'approved' by Class Societies or Maritime Administrations unless they form part of an onboard loading/stability computer system. ie where they may be used by ship's staff to check stability and loading info in real time.
    Stability software that is used to generate hard copy stability manuals for use onboard commercial ships (SOLAS type vessels) is generally not approved
    i.e. the stability manuals are not automatically approved just because "xyz" software was used, nor are they rejected because "abc" software was used - the hard copy stability manual itself is approved and this has to be put onboard the ship - this is usually after the approving authority has generated an independent stability model using their own in house software for the ship in question and obtained results close enough to those contained in the submitted stability manual - thereafter that manual (not the software) is approved for that ship only.

    Of course this means that the stability software you use has to give consistent and accurate results (otherwise the approving authority will not be able to replicate them with their software) and the packages quoted above seem to be in widespread use

    If you have a specific project in mind it may be useful to ask the Class Society or Flag State if there is any stability software which they favour

    Best regards

    Gadfly2
     
  8. sibassie
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    sibassie Junior Member

    To my knowledge there is no "approved" stability software. But class society has created some.

    I worked on the development of VeriSTAR Stability in Bureau Veritas.
    It has been check by the stability department of BV on several issues.

    What kind of ship and study (intact, damage, probabilistic) do you want to make?
     
  9. valber
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    valber Naval Architect

    I tested the demo of VeriSTAR Stability. As I understand it can't import hull geometry from another CAD system - It has own hull modeller. Is it right or I don't understand something? And Bureau Veritas does not sell less than three licences...
    Small recreational craft and small working vessels - tugs, patrols, fishing etc...
     
  10. sibassie
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    sibassie Junior Member

    That's right. Import of other types of file should be done in 2011.

    You can buy only one license. contact marine.software@bureauveritas.com for more information.

    .
     
  11. valber
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    valber Naval Architect

    Thanks for info...
     
  12. victorship
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    victorship WebMember

    hecsalv

    also you have "hecsalv stability program" widely accepted by classification societies, this program have a range of calculation, such as. rapid response, towing calculation, etc
     
  13. tapolat
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    tapolat New Member

    I think Maxsurf-Hydromax is very good stability program for intact and damage conditions. Pls find it www.formsys.com. I use it for plan approval calculations.
     
  14. rxcomposite
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    rxcomposite Senior Member

    I agree with that one. In our research for Class Approved stability software, we found none except that some are more popular than the others and class societies tend to favor (use) one more than the other.

    GHS seems to be the favored one.
     

  15. klaas
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    klaas Junior Member

    NAPA is also used by most class societies and therefore easly accepted. However, NAPA is a complicated and extensive program and takes some time to learn.
     
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