Calculated Moments of Inertia
Calculated Moments of Inertia
(OP)
I have CAD models and the software I used (Mechanical Desktop) is capable of calculating moments of inertia. However, three different versions are returned; (1)Mass Moments of Inertia (2)Mass Products of Inertia & (3)Principal Mass Moments. The coordinates for (1) are given in Lx, Ly & Lz, for (2) in XY, XZ, YZ, and for (3) I, J, K. I am used to seeing MOI expressed in Ix, Iy, Iz.
Does anyone know which if these would be the "correct" one for me?
Does anyone know which if these would be the "correct" one for me?





RE: Calculated Moments of Inertia
RE: Calculated Moments of Inertia
RE: Calculated Moments of Inertia
Regards
Dave
RE: Calculated Moments of Inertia
RE: Calculated Moments of Inertia
Regards
Dave
RE: Calculated Moments of Inertia
My question is why does someone want this information. The moment of inertia calculations are relative to the three axes, x, y, and z, which are different for each part. I would think that maybe a moment of inertia calculation of the whole machine as an assembly might be helpful or maybe the moment of inertia of the cover about the hinge axis might be interesting.
Please ask whoever is demanding this info for an explanation and post again.
Tom
RE: Calculated Moments of Inertia
TygerDawg