1. Mar 20, 2008 #1

   garytse86

   

   Hi. Please help. I'm struggling to find the mass moment of inertia of an area.
   
   Please see picture.
   
   I already have the centroid of the area, and the exact area.
   
   How would I find the mass moment of inertia of this area about its centroid?
   
   I tried using AutoCAD, but it gives you the *area* moment of inertia which isn't helpful to me?
   
   do you guys know any programs that find the mass moment of inertia of an irregular area for you?
   
   Thanks A LOT.

    

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   garytse86, Mar 20, 2008
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3. Mar 20, 2008 #2

   mechlady

   

   Alibre can do that. I think Solidworks or Pro-E can too, but not sure.

    

   mechlady, Mar 20, 2008
4. Mar 21, 2008 #3

   FredGarvin

   

   Science Advisor

   Pro-E and Solidworks will definitely do it. However, you could just start breaking it up into a lot of smaller parts and calculating it yourself. I would think setting a spreadsheet up wouldn't be too difficult, just time consuming.

    

   FredGarvin, Mar 21, 2008

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