Can rhinomarine cauculate Cross curves of stability?

[bbsboat]

I have readed the manul of rhinomarine ,but i didnot know how to cauculate cross curves even it can cauculate righting Arms cruves

[Raggi_Thor]

I haven't seen cross curves in RhinoMarine, but the hydrostatic report is written to an xls file, so you may add it yourself, probably into a template so it's always there.

[bbsboat]

thx Raggi!

[BillyDoc]

Originally Posted by Raggi_Thor

I haven't seen cross curves in RhinoMarine, but the hydrostatic report is written to an xls file, so you may add it yourself, probably into a template so it's always there.

Hi Ragnor,

Could you give us the cell formulas you use to do this? Or maybe the template, as I am a lazy guy and there is so much data in that report I'm not at all sure where the best place to start is (I'm using RhinoMarine 4).

Thanks!

BillyDoc

[MikeJohns]

Run the analysis for a range of flotation planes, simply take your cross curves from the data for each heel angle for each displacement and plot a new graph accordingly.

You may need to compartmentalize your tanks and assign the COG accordingly for worst case since I don't think rhinomarine has "free surface" .

[BillyDoc]

Thanks Mike!

[terhohalme]

Could this be a suitable solution:

First, calculate hydrostatics with a sound hull and pick up displacement and LCB.

Then cut off the leaking compartment of the model and calculate hydrostatics/CG (use previous LCB and displacement). The model trims and heels nicely.

[Raggi_Thor]

Thanks from me also Mike :-)