wind heeling moment equation

[Bassoom]

hi everybody:

i need to calculate the wind heeling moment for an offshore jacup for a range of heel angles.

is there is anybody knows an equation to calculate the heeling moment which is afunction of heeling angle?

[dougfrolich]

Heeling Force=Righting Moment/Heeling arm
Righting Moment=Weight of vessel x Righting Arm(GZ)
Righting arm for SMALL ANGLES =GM sin(heel angle)
BM=moment of inertia of WaterPlane/(diplacement lbs./64)
GM=Center of gravity to Metecenter
BM=Center of bouyancy to Metecenter

[Bassoom]

hi there:
thank u for your response, but i need an equation to help me in my calculations.
i have the heeling arm equation:

heeling arm = .17*10^-6 AV^2*cos^2(heel angle)/Displacment

i need something like that for the heeling moment.

[Raggi_Thor]

I think you have it all.

The preassure from the wind is approx 1/2 x density of air x wind speed squared
1/2 * RO * V^2

The force is preassure x area

The arm is the distance from the center of teh underwater profile to the center of the profile over water.

Isn't that close enough?

[Bassoom]

Yes i think that is enough
thank u for your help