Boat Design Forums  |  Boat Design Directory  |  Boat Design Gallery  |  Boat Design Book Store  |  Thanks to Our Site Sponsors

Go Back   Boat Design Forums > Design > Software
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read Most Recent Posts Gallery Images Search

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 10-22-2012, 08:07 PM
Barbera_Banker Barbera_Banker is offline
 
Join Date: Oct 2012
Rep: 10 Posts: 2
Location: Sydney
Stability and hydrostatics capability in a free CAD

Im currently using Delftship and really need inclined plane visualation and calculations, centres etc for a project im working on.

Im a poor grad student and wondering if there a free/low cost CAD with an hydrodynamics/hydrostatic analysis extension that I can output dxf or other Deftship filetypes files to?

I understand Autocad with add ons has this ability. Is there an Autocad clone out there that I could do this with and if so where do I get the extensions from.

Thanks,
Reply With Quote


  #2  
Old 10-23-2012, 12:07 AM
quequen quequen is offline
Senior Member
 
Join Date: Jul 2009
Rep: 199 Posts: 298
Location: argentina
Barbera, can you specify a little more? What output data are you searching for? Some inclined analysis can be done inside Delftship, with no needing of other softwares. Transversal stability can be done inside Freeship or by ArchimedesMB and some free spreadsheets available here.
There are many plugins for autoCAD, Rhino, etc., but all of them are commercial (and sometimes expensive) software.
Reply With Quote
  #3  
Old 10-23-2012, 02:02 AM
Barbera_Banker Barbera_Banker is offline
 
Join Date: Oct 2012
Rep: 10 Posts: 2
Location: Sydney
Thanks QQ,

Im specifically after inclined planes, waterlines and the location of centres when heeled and trimmed both graphically and numerically outputs if possible. Im new to Delftship and have Freeship which seems to have a few more capabilities but cant work out how to transfer files between them - but that might be my fault.

Ive also got Archimedes but havnt had the time to really get to know it so ill look into that more. The user manual isnt overly detailed but again i guess its a familiarity thing.

Thanks for the reply,

Babs
Reply With Quote
  #4  
Old 10-23-2012, 07:29 AM
quequen quequen is offline
Senior Member
 
Join Date: Jul 2009
Rep: 199 Posts: 298
Location: argentina
Attached is a very basic Delftship file having inclined - heeled waterlines. This technic has been discused in BD many times, try searching the forum (better from google), you'll find some clues. In short:
1- deactivate symetry for involved layers (hydro info disapears)
2- reactivate hydrostatics for them
3- make a mirror of them (here, hydrostatics centers and area curves should reapear).
4- rotate over longitudinal axis at your angle of interest
5- change Design Draft until reaching original Displacement
6- rotate over transversal axis until CG vertically mates LCB
7- repeat 5 and 6 until convergence

ArchimedesMB has been discontinued long time ago, it will never have a finished manual, you'll need some practice.

Good luck!
Attached Files
File Type: fbm YD40heeled.fbm (63.6 KB, 99 views)
Reply With Quote
  #5  
Old 10-24-2012, 01:42 AM
pavel915's Avatar
pavel915 pavel915 is offline
Senior Member
 
Join Date: Nov 2006
Rep: 154 Posts: 329
Location: Bangladesh
Do you have freeship? I think its more helpful then the delftship free...

If you have archimedes then you can do many of the hydrostatic and stability works for free,

But for all... the most important thing is you have to go through very well to those softwares....you can read manuals,
__________________
Md. Al-Amin Pavel
http://www.paveldesign.tk
"A question that sometimes drives me hazy, am i or are the others crazy?"
Albert Einstein
Reply With Quote
  #6  
Old 11-28-2012, 06:20 AM
smp smp is offline
Junior Member
 
Join Date: Jun 2012
Rep: 13 Posts: 25
Location: Greece
MAAT Hydro's free demo version also provides interesting hydrostatic analysis capabilities (real time SAC & hydro, intact stability, swell motions, etc... are available for free !). You can visit http://www.rhino3d.com/resources?id=4983 / www.sistre.eu to see if it may help you !
Reply With Quote


  #7  
Old 11-28-2012, 12:27 PM
DCockey DCockey is offline
Senior Member
 
Join Date: Oct 2009
Rep: 1433 Posts: 3,039
Location: SE Michigan
Rhino3D can do all the primary calculations but by itself does not provide graphical output. Manual iteration is needed to find equilbrium for heeled condtions. Rhino3d imports and exports .dxf files as well as a number of other formats. Student price is $195. www.rhino3d.com

Orca3D is an add-in for Rhino which simplifies and automates hydrostatic calculations and provides graphical output. Level 1 includes hydrostatic calculations and the student price is $125. www.orca3d.com
__________________
David Cockey
Reply With Quote
Reply



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Free!ship Heeled Hydrostatics Tim Hall Software 4 08-12-2011 05:36 PM
CAD Free download SPJ yachts Multihulls 6 06-25-2009 09:26 AM
Free 3D CAD software list DGreenwood Software 1 03-14-2009 01:55 PM
Free CAD programs Willallison Software 8 07-22-2002 09:36 AM
New release of our PHASER hydrostatics & stability plug-in for Rhino BHays Software 2 04-17-2002 05:18 PM


All times are GMT -4. The time now is 01:17 AM.


Powered by: vBulletin Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Web Site Design and Content Copyright ©1999 - 2014 Boat Design Net