An inertia load is a body load uniformly distributed over the volumes of the parts in
an assembly.
In SimSolid, translational and rotational inertia loads are
available. For any given analysis, one translational inertia load and multiple
rotational inertia loads can be specified. Translational inertia applies to all
parts while rotational may be applied to all or a subset of parts.
Note: This
implies that rotational inertial can be nested.
Translational Inertia Loads
Translational inertia loads are defined in the global XYZ reference frame. These
loads are specified in terms of acceleration in a given direction. These loads will
be superposed with the gravity load (if present).
Note: Inertia Loads act in the
opposite to direction specified. An acceleration in the +X direction will cause
a force in the -X direction. This is different to the gravity load which has a
force in the direction specified.
Common values for gravity at sea level are 9.81 m/s^2 or 386.09 in/s^2.
Rotational Inertia Loads
Rotational inertia loads can be applied to the whole assembly or to a selected set of
parts. The axis of rotation is defined by a point and direction vector.Figure 1.
