Sir explanation is great. One query Theta zero = Angle of heel under action of steady wind should be limiting to 16 deg and 80% or 80 deg of the angle of deck edge immersion Many thanks in advance
So first there's a steady wind that keeps the ship at an angle, θ0. Then a big wave hits the ship, and it moves θ1 degress towards the other side. In the mean time, the wind picks up, so the wind moment increases by 50%. So given this, how much potential energy is stored in the ship's hull at this exact moment? That's the area 'a'. What damage can that energy do? Well, it will make the ship roll at first until its equilibrium (where area 'a' and area 'b' meets). At this point all the potential energy has been converted to kinetic energy. This kinetic energy will make the ship keep rolling towards the other side. The righting moment of the ship will resist this, and the roll will stop when the energy given by the area 'a' has been used. This angle MUST be less than the conditions stated in the video. E.g. it must be less than the area of flooding (or 50 degress, whichever is less) and it must be less than where the GZ is depleted by the wind moment of Lw2. Therefore area b must be larger than area a.
your most of the vedio, i have seen the way you make it that, very difficult to understand, it looks like you just reading a book & yourself you did not understand the basic of the topic, can you make it presentable & easier, please do not just read book, and published the vedio. Try to use simple English word. This vedio wind heeling moment, my comment is that, you did not understand the basic, that's why you could not present the vedio in easiest way.
Absoulety.what is the point just copy paste from book.Atleast explanation should be in a such a way that one can easily grasp it….but nonethless keep it upfor the hardwork...
Sir if rolling period is more than 20 sec than what will be the s factor value
sir do u take private turion for phase 2 magnetism??
Sir explanation is great. One query
Theta zero = Angle of heel under action of steady wind should be limiting to 16 deg and 80% or 80 deg of the angle of deck edge immersion
Many thanks in advance
You are correct, very nice pick, my apologies for the error:)
can you provide an explanation why are B should be equal to or greater than area A?
So first there's a steady wind that keeps the ship at an angle, θ0. Then a big wave hits the ship, and it moves θ1 degress towards the other side. In the mean time, the wind picks up, so the wind moment increases by 50%.
So given this, how much potential energy is stored in the ship's hull at this exact moment? That's the area 'a'.
What damage can that energy do? Well, it will make the ship roll at first until its equilibrium (where area 'a' and area 'b' meets). At this point all the potential energy has been converted to kinetic energy. This kinetic energy will make the ship keep rolling towards the other side. The righting moment of the ship will resist this, and the roll will stop when the energy given by the area 'a' has been used. This angle MUST be less than the conditions stated in the video. E.g. it must be less than the area of flooding (or 50 degress, whichever is less) and it must be less than where the GZ is depleted by the wind moment of Lw2.
Therefore area b must be larger than area a.
Why curve starts from negative
What is Agle of lurch here??
Sir, I would like to contact you privately please
16 deg to 80 percent not the 80 deg u have written
your most of the vedio, i have seen the way you make it that, very difficult to understand, it looks like you just reading a book & yourself you did not understand the basic of the topic, can you make it presentable & easier, please do not just read book, and published the vedio.
Try to use simple English word. This vedio wind heeling moment, my comment is that, you did not understand the basic, that's why you could not present the vedio in easiest way.
Absoulety.what is the point just copy paste from book.Atleast explanation should be in a such a way that one can easily grasp it….but nonethless keep it upfor the hardwork...