Center of gravity 2

[raghavansp]

Hi

I have a FEM of an ultracapacitor pack. how do i determine the C.o.g of the assembly?


Thanks
Prasanna

 

[rb1957]

run the model with 1g inertia load to create a moment along the cg co-ordinate you want; ie, apply 1g in the x direction, calc sumMy of the reactions to determine the z co-ord and sumMz for the y co-ord

 

[ThomasH]

Hi

What software do you use?

In some of them you can simply check "Mass properties" and get COG. Doesn't require any analysis at all.

Regards

Thomas

 

[raghavansp]

Thanks 'rb1957' & 'ThomasH'

@ThomasH - am using catia for modelling, Hyperworks 9.0 and Ls Dyna 9.71

 

[thomasdw]

Catia does this easily with the 'Measure Inertia' button!

 

[raghavansp]

@thomasdw & Thomash - Thanks..I found it both in catia and Hypermesh (btw HM was easier as I had already input the mtrl properties)