free software for finding stabiliy???

[pavel915]

Is there any free software for finding the stability of the ship by importing the hull to it? I use maxsurf and rhino for hull design , and I have no software for finding the stability of the designed vessel,
can any one please help me???
thanks!

[CGN]

Archimedes
http://www.naval-architecture.co.uk/

Freeship

[pavel915]

yes, but can I measure the stability of the hull designed by maxsurf or rhino?
would you please tell me wheather it is possible or not?????
please reply!

[Mikey]

Rhinomarine will do the job but it is not free, you can download a 15 day trial version from the net, you will not be able to de-install and re-install after that. Expired is expired.

If you have Virtual PC, then you can "save" the 2 virtual PC files after you have installed and "copy over the expired Rhino installation" every 15 days.

Formsys hydrostatics software Hydromax is good but expensive.

Mikey

[Mikey]

Use iges when exporting from Maxsurf to Rhino, set zero point at forward perpendicular, set surfaces -> precision to highest and choose export as iges, 10 decimals and NURBS

I would recommend turning symmetry off in Maxsurf before exporting (=you get one side), and Rhinomarine can mirror.

[CGN]

Yes, you can

[marshmat]

Going to have to play around with Archimedes a bit, I think.... haven't tried it before, strikes me as useful but getting a Rhino model in seems a bit less than intuitive. Any advice on that?

[pavel915]

I want to know actually ,,, is it possible to measure the stability in archemedis of the hull ,which is designed by maxsurf and it is in igs format????? I use maxsurf academic to design hull and I dont have any paid software!
please reply how I can do that!
I want to know about archimedis or other free software for stability!

[Tim B]

Download the latest service release for Rhino.

use the command "AttachGHSData" (I think it's in the Bonus->Tools menu)

Export the GHS data from Rhino. Open it in ArchimedesMB.

Tim B.

[pavel915]

thank you tim b, for your nice information,,, but I have know a bit more from you!
when I typed that command a winodow came " attachGHS data" , there are some option there named ,,,,," hull item,sail item, tank item ..................."
but I am not understanding how to save the GHS file , I didnot found the way to do that!
would you please tell me detail please??????
thanks!

[Tim B]

ArchimedesMB makes life quite simple, as at the moment it only uses hull items.

The easiest way to export the GHS data is to add a hull item and select half the hull (ie. port or starboard side) as the geometry. Then select "Rhino Geometry is 1/2 GHS geometry (split on CL)". Check that the other data is ok, click OK. Then use save or export to save the GHS geometry.

Tim B.

[CGN]

In the archimedes website you can find a basic tutorial on how to input a hull.

Or read this tutorial on how to use the ghs plug in
http://rhino3d.cl/GHS_UG.pdf

or use Freeship instead of maxsurf and save you hull from freeship as a Archimedes or GHS

[pavel915]

thank you sooo much to you all, now I can export ship GHS data to archimedes and can analyze stability and other things!