Ship Stability - Equilibrium of ships and Angle of Loll
This video is a theoretical explanation of the equilibrium of ships and the concept of angle of loll. The concepts of stable, unstable, and neutral equilibrium is discussed.
How a vessel attains the state of Angle of Loll, is also explained in the video.
Students are advised to watch the previous videos in the series of ship stability before watching this video. Links to the previous videos are provided below.
There are no numerical examples discussed in this video.
This is video 9 in the series of videos on ship stability. Students are advised to watch the previous videos (links below) before watching this video.
Ship Stability (Volume, Mass, and Density): • Ship stability basics ...
Ship Stability (Pressure and Thrust): • Ship Stability Basics ...
Ship Stability (Displacement and Under-water volume): • Ship Stability - Displ...
Ship Stability (Deadweight, TPC, and Reserve Buoyancy): • Ship Stability - Dead...
Ship Stability (Load lines, effect of density on draft and displacement): • Ship Stability - Load ...
Ship Stability (Shift in the centre of gravity and KG calculation): • Ship Stability - Shif...
Ship Stability (Centre of Buoyancy): • Ship Stability - Cente...
Transverse statical stability of ships: • Transverse statical st...
Пікірлер: 16
Very good video man!!!
it was very easy to understand . thankyou so much
Thank you sir.your channel is very helpfull.if just you increase the volume it will be easier for us.
Do you have a video that explains different methods of bringing G down? Provided that you have ballast tanks or if you do not have ballast tanks. what are the correct actions to shift cargo?
@SteeringMariners
4 жыл бұрын
Yes, I do. Its on correcting the angle of loll which basically involves bringing the G down using ballast tanks or cargo:) kzread.info/dash/bejne/ZWWTrbylXa3NiLQ.html
Thank you sir
sir make video on all things u must know in stability before appearing in cadet interview?
So angle of lol is a special case of neutral equilibrium or unstable equilibrium ?
@SteeringMariners
3 жыл бұрын
Unstable equilibrium
@sumandutta7169
3 жыл бұрын
@@SteeringMariners but at angle of lol the ship rolls about a new temporary axis so in that case why do not call it as neutral equilibrium case instead of unstable equilibrium.
@1892toonarmy
3 жыл бұрын
Not quite right I am afraid...
@discountcuppon
2 жыл бұрын
Hi friends good morning For preparation of second mate / DNS/ BSC nautical science/NCV come in #kundanpatna
Assalam o alaikum sir.. Very informative video thankyou. Sir voice was too low.
Gm is positive in angle of LOLL, whereas GZ is negligible.
@dayanwijayawardena3623
Жыл бұрын
Initial GM is negative in a vessel at angle of loll. where as in neutral equilibrium, gm could be positive. Thats the difference between neutral equilibrium and angle of loll.
Your explanation regarding neutral equilibrium is theoretically wrong. In angle of loll, if it heels further it will have a righting lever to come to it's original position of AOL where as in neutral equilibrium, it will have no righting lever to come back to it's original position thus it will remain at heeled angle. in neutral equilibrium initial GM when the ship is upright is zero and in a vessel in an angle of loll, the initial GM is negative.