Ship Stability _Free Surface Effect (FSE)

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  • Опубликовано: 3 янв 2015
  • Free Surface Effect. Virtual loss of GM in a slack tank. Concept of GM solid and GM fluid.

Комментарии • 33

  • @hjhjjjjjjjjjful
    @hjhjjjjjjjjjful 2 месяца назад

    Great explanation 🙌

  • @DaveCo1985
    @DaveCo1985 9 лет назад

    Excellent video. Very useful. Thanks!

  • @luisernestomunozmolina1860
    @luisernestomunozmolina1860 2 года назад

    Thanks a lot, its a magnificent explanation about F.S.C and all points involving this condition.
    Great, thanks for sharing!!!

  • @TheRealDefacto
    @TheRealDefacto 7 лет назад

    Thanks for the video :-)

  • @aloneicamealoneigo
    @aloneicamealoneigo 8 лет назад

    AGain, thank you my friend.

  • @rosspainting9499
    @rosspainting9499 8 лет назад +4

    you have made my life so easy. thank you very much.

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      @josephwestin8996 2 года назад

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  • @RHAIT100
    @RHAIT100 9 лет назад

    Very intersting demo☆☆☆

  • @hasithago
    @hasithago 9 лет назад

    thanks good explanation

  • @navkma
    @navkma 3 года назад

    Thank you so much sir

  • @TheYuganter
    @TheYuganter 6 лет назад

    👌👌👍👍

  • @aristongomes5857
    @aristongomes5857 Год назад

    Thank u sir

  • @tygrysisusel
    @tygrysisusel 6 лет назад

    Magnitude in. the formula should be b^3, sorry for that.

  • @clifclivanz6526
    @clifclivanz6526 6 лет назад

    Good day i was expecting that you will give the formula off FSM=Gz x (displacement)

  • @yaswanthkumar5798
    @yaswanthkumar5798 3 года назад

    Thnq sir

  • @jomaragosita6518
    @jomaragosita6518 7 месяцев назад

    😅can you give an example of free surface effect of triangular surface.

  • @flaptsak87
    @flaptsak87 9 лет назад

    How can i calculate the new GM of the ship in a situation like this??Suppose i can find the FSC,can i connect it somehow and find the new GM OF THE vesel?

    • @sailorstube3259
      @sailorstube3259  9 лет назад

      flaptsak87 GM (fluid)= GM (solid)- FSC & GM (solid)= KM- KG . We need to find KM and KG. These values are calculated using information from ship stability booklet. You can refer this video to find GM , that is GM (solid).ruclips.net/video/pPDzHoioYlY/видео.html&lc=z12ldh2hhuulvdcwy04cezhilqyaeh5znx00k

  • @AmericanFightingMan
    @AmericanFightingMan 9 лет назад +2

    Captain Araine?

  • @325nikos
    @325nikos 9 лет назад

    So the mass of the liquid in the tank has no effect on FSM and FSC?

    • @sailorstube3259
      @sailorstube3259  9 лет назад +2

      As long as there is sufficient liquid free to move across the breadth, there will be free surface effect. For a box shaped tank, if the space occupied ( or mass as mass= volume x density) by liquid is between 5% to 95% (approx ), the free surface effect is almost same and a constant value of FSC ( Free Surface Correction) is taken. However if the liquid filled in a tank is above 95 % ( less space to move), value of FSC reduces and can be neglected . For a triangular shaped tank, this effect is even more than box shaped vessel due to the large shift of center of gravity of liquid.

    • @325nikos
      @325nikos 9 лет назад

      SAILORSTUBE thx for the reply

  • @marinersgang
    @marinersgang Год назад

    small g is the weight of fluid?

  • @tygrysisusel
    @tygrysisusel 6 лет назад

    Dear friend, so called FSE is in fact transversal moment of inertia of free SURFACE and is not therefore connected in any way with volume of liquid in tank. In other words, it doesn't matter, if you have 1 meter, or 1 mm of free liquid in tank. Effect on GM will be the same. Basic formula of transversal moment of inertia for rectangular tanks is: lxb^4/12. Thus you can see, that there is no units used in the formula and you can see what factor (b^4) is contributing most to the detrimental effect of this phenomenon. I skip over mixing initial stability with GZ curve in view of the FSE. This is bad educational tool for our young officers.

    • @frontmate
      @frontmate 5 лет назад

      Why "12" in the formula ?

    • @lancesather6690
      @lancesather6690 8 месяцев назад

      ​@@frontmateYou don't want to know

  • @moussatraore832
    @moussatraore832 7 лет назад

    naike

  • @technicalbhakt6030
    @technicalbhakt6030 3 года назад

    ruclips.net/video/MoVB7aFt5lU/видео.html
    एक बार ये वीडियो देखलो ।।100% जॉब गारंटी ।। अगर पसंद ना आया तोह डिसलाइक कर देना ।।