Can a point load be applied on a ship by NAPA software-The loading direction of point

Discussion in 'Software' started by xichyu, Oct 15, 2016.

  1. xichyu
    Joined: Apr 2016
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    xichyu Junior Member

    Can a point load be applied on a ship by NAPA software(The loading direction of point load is vertically upward)?
    Could NAPA software be used freely?
     
  2. Ad Hoc
    Joined: Oct 2008
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    Ad Hoc Naval Architect

    Point loads can be applied to any FEA model. However caution must be used.

    Mathematically we can write is as: F(x) = [x-a]^n. But when n = -1, which is a point load or singulairty it becomes:

    F(x) = [1/(x-a)] => when x not = a F(x)=> 0, but when x = a (point load) F(x) = infinity.

    In other words you get an infinite stress at that point. Therefore you must learn how to mesh in way of point loads, as well as learn how to apply point loads into an FEM without creating such high stress gradients which affects the results.
     
  3. snog
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    snog New Member

    Yes.
    Yes, if you have a license.
     
  4. xichyu
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    xichyu Junior Member

    Is it a free software?
     
  5. Kailani
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    Kailani Senior Member

    No. Email: sales (at ) napa.fi
     
  6. xichyu
    Joined: Apr 2016
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    xichyu Junior Member

    ----- Forwarded Message -----

    Delivery has failed to these recipients or groups:
    sale@napa.fi (sale@napa.fi)
    The email address you entered couldn't be found. Please check the recipient's email address and try to resend the message. If the problem continues, please contact your helpdesk.
     

  7. pdmsvn
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    pdmsvn Junior Member

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