In structural mechanics analysis, especially when modeling dynamic problems, the mass properties of a structure or its part can be an important aspect of the design. To compute such mass properties, you can use Mass Properties node, which can be added under Component>Definitions. There, you can select the geometry domains to be included into the computations, and select physics interfaces that will define the mass properties. You can add and configure several mass property contributions if needed.

Volume, mass, center of mass, and moments of inertia will be computed. They will become available as predefined variables which you can find in Equation View under the corresponding Mass Properties node.

The mass properties can be computed on both initial geometry (material frame) and deformed geometry (spatial frame). The results may differ considerably in case of large deformations. To compute the results in the undeformed geometry, you do not have to perform the whole analysis, it is sufficient to choose Get Initial Values under the Study node. To obtain the mass properties in the deformed configuration, you need to the full analysis, so that the displacement results are available.