Learning Forum

[Eugenio Baita Saavedra]

Hello,

when adding a Point Mass to a geometry, you have to include the inertial properties (Radius of Gyration or Direct Input of Inertia). Must it be referred to the CoG of the Point Mass or to the Origin of Fixed Reference Axes (FRA)?

Cheers,

Eugenio

[Ingrid Machecler]

Good morning, these mass properties are referred according to the CoG and the coordinate system (aka: x, y, z) is according to the fra.

I hope this helps.

Ingrid

[Eugenio Baita Saavedra]

Thank you Ingrid,

just for confirming, the inertia values must be for the axes that pass through the center of the FRA, not through the center of the COG of the Point mass.

Cheers,

Eugenio

[Eugenio Baita Saavedra]

the other way around*