very importan need tocalculate cross curve of stability KN

Discussion in 'Stability' started by s3dany, Dec 23, 2007.

  1. s3dany
    Joined: Dec 2007
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    Location: Egypt

    s3dany Junior Member

    I have lines forship it's supply vessel and i want to get KN curves of stability. I got the hydrostatic curves for the ship and calculate Kn curves up to 25 degree by wall sided formula and i found there is error for angle more than 25 degree so iwant to know howto caculate KN curves
     
  2. Guillermo
    Joined: Mar 2005
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    Location: Pontevedra, Spain

    Guillermo Ingeniero Naval

    Hi s3dany, welcome to these forums!
    As it is too tough to perform such calculations by hand, I'd suggest you to use a NA program, like Delftship or any other available in the market.

    Cheers.
     
  3. s3dany
    Joined: Dec 2007
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    Location: Egypt

    s3dany Junior Member

    thank u very much for answer me i download demo version and try it now but i want to ask if it give accurate results or i have to buy fullversion
     
  4. Guillermo
    Joined: Mar 2005
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    Location: Pontevedra, Spain

    Guillermo Ingeniero Naval

    dany,
    As far as I know it is accurate. The differences with the paying version is clearly stated at Delftship's pages.
    Cheers.
     
  5. s3dany
    Joined: Dec 2007
    Posts: 11
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    Location: Egypt

    s3dany Junior Member

    thank you very much i try freeship now but iwant ask u ifu have tutorial to make a offset file i try to do it but i don't understand it from manual. i need to know what he mean from following:
    1)Distance of aft contour line to origin on each waterline. doeshemaean distance from the outer line in profile to orgin.
    2)The last column represents the height of the contour line on each station. and wht does it mean buttock or something else i didn't get it.

    there is somethinmg how i can get hydrostatic data bcz when i goview then hydrostatic they give me table but always parameter contain 0 except draft so howi can use it to get hydrostatic and cross curves bcz that wht i need
     

  6. Guillermo
    Joined: Mar 2005
    Posts: 3,644
    Likes: 185, Points: 63, Legacy Rep: 2247
    Location: Pontevedra, Spain

    Guillermo Ingeniero Naval

    s3dany,
    I'm not used to work with Delftship.
    You should post your questions in the Software section of these forums.
    Best.
     
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