How do I use solidworks to find the amount of water a boat hull will displace and where the waterline will be located on the vessel? Can i do this in Xpress with purchasing COSMOSWorks? Help please. This is a clip from SolidMentor @ http://tinyurl.com/6maht7
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gol10dr 10:33 pm on November 25, 2008 Permalink
A boat's displacement is not something that would be calculated in Cosmos. This could be done with equations and based on the mass of the hull. Buoyancy is not solved with FEA.
Mohammad AlGammal 2:40 pm on November 26, 2008 Permalink
You cannot do that with Cosmos but there was a plugin that does that and even shows you the wake pattern and hul stresses. I remember I tried it several months ago. I'll try to remember its name and send it to you.
Cheers.
David 2:52 pm on November 26, 2008 Permalink
The displacement is the amount of water that weights the same as the hull. Assign a material to the hull and then find the weight. Calculate the volume of water that weights the same. Fresh water is about 8#/gal and 231 in^3 per gallon for about .035#/in^3.
To find the waterline you will need to fill the hull and then create a cut where you think the waterline should be. Cut away above this line and see what the volume is. Move the line incrementally until you get the same volume as the displacement in in^3. You can use a macro to solve this but trial and error shouldn't take too much time.
Frank 6:14 am on November 28, 2008 Permalink
I realised after I asked the original question what I am really trying to find is the Bouyancy of the hull, not the displacement. Would it be better to look for an add-on program for SW or use a seperate 3rd party program. The only question is, with a stand-alone app, I am having problems finding affordable programs that can import 3D files from SW.
fwdixon 5:42 pm on December 2, 2008 Permalink
Well, it looks like I’ll be investing in Multisurf for Solidworks. This seems to be the most cost effective way to accomplish what I need.
Alan 7:42 am on December 8, 2008 Permalink
Here is something a ran across and remembered that someone here was looking. It isn’t a SW link, but it may help in some way.
“Modelers of hulls and designs need to have a way to shape, optimize and save their creativity. This can do it. Screen Shot shows plenty of tools to work with. Nice looking Website.
http://www.seasolution.com/“