So, it will go like that more or less. So, I told you in hydrostatic case, you can afford to
make mistake in added mass damping exiting force, you can afford to make mistake, but
then the point is that, even if you made a mistake situation is not dangerous.
Unfortunately what happened? When you do this, other extreme end the ship behavior is
actually opposite phase that is this goes like this, this goes like this, this goes like this,
(Refer Slide Time: 11:00) I mean what I am trying to say that it goes opposite phase.
So, what happen, this is when the inertia dominates, the the interesting part here,
interesting or unfortunate part is that where my situation is more dangerous which
obviously, in this case because you know you can see that if the if if the you know,
vessel is bent like this you know, more dangerous because the (()) is closer to the water.
Then if it was falling, see in this, if you are standing here is of course, if you make as
long you will not feel you are moving, because the water is earth same depth below you,
but here you will see that you know water is coming up you are going closing down, you
you know water is coming up when the wave is rising, you are going down here.
So, it is dangerous, unfortunately this happens when inertia dominance and and that is
the case when you need to find out the hydrodynamic more carefully. So, you know in
roll case, it turns out that you cannot afford hydrodynamics, because the more dangerous
situation arises where hydrodynamic forces are more important. So, whether we like or
not mathematics, we have to have some estimate of hydrodynamic forces that is what I
want to tell here.
So, it will go like that more or less. So, I told you in hydrostatic case, you can afford tomake mistake in added mass damping exiting force, you can afford to make mistake, butthen the point is that, even if you made a mistake situation is not dangerous.Unfortunately what happened? When you do this, other extreme end the ship behavior isactually opposite phase that is this goes like this, this goes like this, this goes like this,(Refer Slide Time: 11:00) I mean what I am trying to say that it goes opposite phase.So, what happen, this is when the inertia dominates, the the interesting part here,interesting or unfortunate part is that where my situation is more dangerous whichobviously, in this case because you know you can see that if the if if the you know,vessel is bent like this you know, more dangerous because the (()) is closer to the water.Then if it was falling, see in this, if you are standing here is of course, if you make aslong you will not feel you are moving, because the water is earth same depth below you,but here you will see that you know water is coming up you are going closing down, youyou know water is coming up when the wave is rising, you are going down here.So, it is dangerous, unfortunately this happens when inertia dominance and and that isthe case when you need to find out the hydrodynamic more carefully. So, you know inroll case, it turns out that you cannot afford hydrodynamics, because the more dangeroussituation arises where hydrodynamic forces are more important. So, whether we like or
not mathematics, we have to have some estimate of hydrodynamic forces that is what I
want to tell here.
การแปล กรุณารอสักครู่..
