Free Surface Effect. Virtual loss of GM in a slack tank. Concept of GM solid and GM fluid.
Пікірлер: 33
@luisernestomunozmolina18602 жыл бұрын
Thanks a lot, its a magnificent explanation about F.S.C and all points involving this condition. Great, thanks for sharing!!!
@hjhjjjjjjjjjful3 ай бұрын
Great explanation 🙌
@rosspainting94998 жыл бұрын
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@DaveCo19859 жыл бұрын
Excellent video. Very useful. Thanks!
@aloneicamealoneigo8 жыл бұрын
AGain, thank you my friend.
@RHAIT1009 жыл бұрын
Very intersting demo☆☆☆
@navkma3 жыл бұрын
Thank you so much sir
@TheRealDefacto7 жыл бұрын
Thanks for the video :-)
@aristongomes5857 Жыл бұрын
Thank u sir
@tygrysisusel6 жыл бұрын
Magnitude in. the formula should be b^3, sorry for that.
@hasithago9 жыл бұрын
thanks good explanation
@TheYuganter6 жыл бұрын
👌👌👍👍
@clifclivanz65266 жыл бұрын
Good day i was expecting that you will give the formula off FSM=Gz x (displacement)
@AmericanFightingMan9 жыл бұрын
Captain Araine?
@yaswanthkumar57983 жыл бұрын
Thnq sir
@jomaragosita65187 ай бұрын
😅can you give an example of free surface effect of triangular surface.
@tygrysisusel6 жыл бұрын
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.
@frontmate5 жыл бұрын
Why "12" in the formula ?
@lancesather66909 ай бұрын
@@frontmateYou don't want to know
@marinersgang Жыл бұрын
small g is the weight of fluid?
@flaptsak879 жыл бұрын
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?
@sailorstube32599 жыл бұрын
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).kzfaq.info/get/bejne/prZ0raugztW9nI0.html&lc=z12ldh2hhuulvdcwy04cezhilqyaeh5znx00k
@325nikos9 жыл бұрын
So the mass of the liquid in the tank has no effect on FSM and FSC?
@sailorstube32599 жыл бұрын
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.
@325nikos9 жыл бұрын
SAILORSTUBE thx for the reply
@moussatraore8327 жыл бұрын
naike
@technicalbhakt60303 жыл бұрын
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