8.1.7. Setting a Coordinate System Origin at the Center of Mass

You can change the location of an existing Coordinate System to the center of mass of your model. This includes all unsuppressed bodies of the model as well as any specified Point Mass and/or Distributed Mass objects.

Set Origin at Center of Mass

To set a coordinate system's location to the center of the mass:

  1. Select an existing coordinate system object.

  2. Select the Set Origin at Center of Mass option. The coordinate system is automatically set at the center of mass of the model.


    Note:  This option does not support reorientation of the Global Coordinate System.


Distributed Mass Requirements

In order for a Distributed Mass object to be supported, it must be scoped to either edges or faces only and you cannot mix these two scoping options. Furthermore, the calculation of the mass for this object depends upon the setting of the Mass Type property. If set to:

  • Mass per Unit Area, the application calculates the center of mass.

  • Total Mass, the application calculates the equivalent uniform mass density based on the scoping of the object.