Need help in finding internal Volume of a Vessel AutoCAD 2012

[gazza_au]

I need help in finding internal Volume of a Vessel AutoCAD 2012, I have revolved the heads 8mm thk and the shell is 6mm thk, what process do i use to find the internal volume please?

 

 

 

[ReMark]

Try this.

 

Draw a square that is slightly bigger than the diameter of your vessel. The center of the square should be coincident with the center of the vessel. The square must also be located slightly below the bottom of your vessel.

 

Extrude the square upwards to a height greater than your vessel. The vessel is now encased in a 3D solid.

 

Subtract the vessel from the extruded square.

 

Use the SEPARATE command to decouple the square from what is left of the vessel. Erase what is left of the extruded square.

 

The result should be a 3D solid in the shape of the interior of your vessel.

 

Run the MASSPROP command on the resultant solid.

 

Done.

[ReMark]

Visual style: 2Dwireframe.

This is a simple visual of how the process goes from left to right.

The final object on the right was created using the SLICE command to verify that I did indeed have a completely solid 3D model.

[ReMark]

Visual style: Conceptual.

The last two objects in the previously posted image.

Solid through and through.

[gazza_au]

Thanks very much for your quick response, I'm at home now so I wil try this out at work tomorrow , normally we work the heads out with the sum of three parts, knuckle radius, crown, etc all in mathcad messing about with all the nozzles but I just want to know that I can double check the finished model with the calcs.

[ReMark]

Well just remember that your vessel needs to be a single 3D model and not separate pieces (heads and shell). Use a copy of the original vessel and you'll be fine.

 

You're entirely welcomed.

[gazza_au]

 

Worked fine thanks ReMark, Had to go to Solidedit command to find separate.

If anyone else needs to do this just divide massprop volume by 1000000 and that's your Cubic Meter volume.

[ReMark]

I see you are still running "old school" classic AutoCAD with toolbars. I use the Ribbon and a 3D modeling workspace so Separate is right there on the Home tab.

 

I am glad to hear that you were able to solve your problem with my help. Thanks for updating us too.

[welldriller]

Or you could try this

 

http://aqua.ucdavis.edu/Calculations/Volume_of_a_Cylindrical_Tank.htm

[ReMark]

No indication that the ucdavis calculator takes into account head type.

[welldriller]

No indication that the ucdavis calculator takes into account head type.

 

looks like i struck out again

[marmo]

Hi,

 

reading this thread I am reminded of

 

http://simple.wikipedia.org/wiki/Archimedes