2009

Surface Treats the object as a hollow shell whose thickness is 1 centimeter.
The mass is derived from the surface area and the 1-centimeter thickness, but
the object has no volume.
Bounding Box A bounding box surrounding the extents of the object is used
to calculate both the volume (of a solid bounding box) and the mass (based
on the volume).
Bounding Cylinder Similar to the Bounding Box option, except that a
bounding cylinder is used, whose Z height axis is aligned with the local Z axis
of the object.
Bounding Sphere Similar to Bounding Box, except that a bounding sphere
is used.
Mesh Solid The geometry of the object is used to calculate both the volume
and the mass, according.
Property Estimate Resolution options
Available only when the Mesh Solid option is chosen. The Property Estimate
Resolution settings affect the accuracy with which the mass moment is
calculated. This determines how accurately the rotation of the object responds
to torque.
Grid A sample grid is used to calculate the mass moment. The smaller the
cells in the grid, the more accurate the calculation. The grid cells are measured
in centimeters, regardless of the current display unit.
Override Automatic Resolution Lets the Dynamics utility automatically set
the grid size based on the complexity and size of the object. In addition, the
lowest value that will be automatically calculated is plugged into the Grid
spinner (which is also unavailable). If you want to specify your own grid value
using the Grid spinner, but want some idea of where to start, turn off
Automatic Resolution and then turn it back on again.
Edit Object List Dialog
Utilities panel > Utilities rollout > More button > Dynamics > Dynamics rollout
> Edit Object List button > Edit Object List dialog
The Edit Object List dialog lets you select the objects to include in a dynamics
simulation. Highlight objects from the Objects in the Scene list on the left,
and then click the > button to place them in the Objects in the Simulation
list on the right side of the dialog.
Dynamics Utility | 3873