Ansys Learning Forum Forums Discuss Simulation General Mechanical How to Find Center of Gravity and Moment of Inertia Reply To: How to Find Center of Gravity and Moment of Inertia

jj77
Subscriber

Here is a way to do that in WB.

 

 

 

Example: Two spheres (equal mass) with their centre of gravity (COG) at 0 mm and 4000 mm respectively. Thus their combined COG is at 2000 mm.

 

 

 

In order to get that (2000 mm for COG), they are combined in to a multi-body part in DesignModeler or DM for short (In DM. select all parts, right click and choose form new part). Once we bring them in to mechanical, the information of the total assembly COG (and moment of inertia) is shown in the details of “Part”. See below (it is 2000 mm as it should be).

 

 

 

There might be of course other ways to get that info.