Mass Moment of Inertia

The mass moment of inertia is calculated at the part's center of mass with respect to the global axis orientation.

It is used to determine the torque needed to achieve a target angular acceleration about a rotational axis. Larger moments require more torque to change the part's rotation.

By default, the mass moment of inertia is automatically calculated. Disable this option in the Property Editor if you want to manually enter the products of inertia (Ixx, Iyy, Izz, Ixy, Ixz, Iyz).

Note that different software packages use different conventions for the sign on the off diagonal terms. We use the following convention: