Mass and Moment of Inertia (Rigid Connector)
Use the Mass and Moment of Inertia subnode to add inertia properties to the rigid connector for dynamic analysis.
Center of Mass
Here you specify the location of the center of mass for the contribution given in this node. Select an option from the list: Center of rotation or User defined.
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For Center of rotation, the location of the load is taken as the center of rotation as defined in the parent Rigid Connector node.
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For User defined, enter the Global coordinates of center of mass, Xm, in the table.
Select the Offset check box to add an optional offset vector to the definition of the location. Enter values for the offset vector Xoffset.
The center of mass used is the sum of the vector obtained from any of the input methods and the offset vector.
Mass and Moment of Inertia
Enter values or expressions for the Mass m. Also enter values or expressions for the Moment of inertia I. The axis directions of the moment of inertia tensor are given by the coordinate system selection in the parent Rigid Connector node.
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For 3D components, select Isotropic (the default), Diagonal, or Symmetric and enter one or more components for the tensor I.
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For 2D components, enter a value or expression for Iz.
Location in User Interface
Context Menus
 Solid Mechanics>Rigid Connector>Mass and Moment of Inertia
 Shell>Rigid Connector>Mass and Moment of Inertia
 Multibody Dynamics>Rigid Connector>Mass and Moment of Inertia
Ribbon
Physics tab with Rigid Connector node selected in the model tree:
Attributes>Mass and Moment of Inertia