Metacentric Height ll GM ll Ships Equilibrium ll Angle of Loll ll Righting Lever and Righting Moment
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- เผยแพร่เมื่อ 23 ส.ค. 2024
- Correction for the formula that I've shown:
Righting Lever (GZ) = GM x Sine0 ( Angle of Heel)
Righting Moment (RM) = GZ x Displacement
• Calculate Fluid GM l M...
• Shift of Ship's Center...
• How ship's Center of G...
This animated video explains initial metacentric height, center of gravity, and buoyancy. It also shows how the ship floats and the three conditions of the ship's equilibrium. How the righting lever and righting moment were created, and how the angle of the loll formed.
The metacentric height (GM) of a ship is a crucial parameter that determines its stability characteristics, particularly its resistance to rolling motions in response to external forces such as waves, wind, and cargo shifting. It is a measure of the distance between the center of gravity (G) of a ship and its metacenter (M).
#stability
#hydrodynamics
#maritime
#seafarer
#seaman
#bsmt
#maritimestudents
#seamanship
Finaly I found a FLAWLESS explanation of Ships Stability. No questions left. A Huge thanks. Liked and Subscribed!!!
Thank you.
Correction for the formula that I've shown:
Righting Lever (GZ) = GM x Sine0 (Angle of Heel)
Righting Moment (RM) = GZ x Displacement
Thanks for share.
Thanks for watching!
very useful explaination.
Glad it was helpful! Thank you.
THANKS FOR THE INFORMATIVE VIDEO.
Welcome.
already subscribe thank you
Thank you too.
Dear Sir your videos are very clear for all seafarers who want improve their knowledge in the nautical science.But i have a question.....are you planning in the future video concerning the resolution of celestial navigation problems also?Thanks for Your answer..Kind regards!Lorenzo, Italy
Thank you. I'm glad you found my video valuable. Yes, I'm planning to upload a video on celestial navigation calculations soon.
can you please show us how to draw gz graphic according to our calculated gm value?because port states usually wants to see the graphics drawn by ship officers by hand not with the program so please show us drawing the gz graphic with our calculated values
I will make a seperate video on how to construct a gz curve manually.
@@nauticalacademy001 it will be so important and useful information for us, thank you
where is the video of the sample calculation of GZ and RM..
Here is the link for that video. th-cam.com/video/dGu3m7-xNgg/w-d-xo.html
sir does in revolve on their certain angle due to moment £ X•Y•Z?
In the context of ship stability and dynamics, the moments (represented by £ X•Y•Z in your comment) can indeed cause a ship to rotate or revolve around certain angles. Here’s a brief explanation:
Moment: A moment is a measure of the force causing an object to rotate. In physics, it’s calculated as the product of the force and the distance from the point of rotation (lever arm).
Axes of Rotation (X, Y, Z): These refer to the three principal axes in a 3D coordinate system.
X-axis: Typically runs from the bow (front) to the stern (back) of the ship.
Y-axis: Typically runs from port (left side) to starboard (right side) of the ship.
Z-axis: Typically runs vertically, from the bottom (keel) to the top (deck) of the ship.
A ship can rotate around these axes due to the moments acting on them, resulting in different types of movement:
Roll: Rotation around the X-axis (side-to-side tilting).
Pitch: Rotation around the Y-axis (up-and-down tilting of the bow and stern).
Yaw: Rotation around the Z-axis (left-to-right turning of the bow).
When a moment acts on a ship, it creates a rotational force that can cause the ship to rotate around one or more of these axes, changing its orientation in the water.
For instance, a moment around the Y-axis (X•Y•Z referring to Y) would cause the ship to pitch, while a moment around the X-axis would cause the ship to roll.
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Thank you.