COMSOL 6.2 - Mass and Moment of Inertia (Rigid Connector)

Mass and Moment of Inertia (Rigid Connector)

Use the subnode to add inertia properties to the rigid connector for dynamic analysis.

Here you specify the location of the center of mass for the contribution given in this node. Select an option from the list: or.

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For , the location of the load is taken as the center of rotation as defined in the parent node.

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For , enter the , Xm, in the table.

Select the 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 m. Also enter values or expressions for the 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 ,, or and enter one or more components for the tensor I.

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For 2D components, enter a value or expression for Iz.

Frame Acceleration Forces

Select the check box to switch off the loads generated by this node when the frame is accelerated using a Gravity, Rotating Frame, Linearly Accelerated Frame, or Base Excitation feature. The setting will also determine whether the node will contribute when computing mass properties and participation factors.


	For more information, see Computing Mass Properties and Participation Factors.

Location in User Interface

Context Menus

Ribbon

Physics tab with node selected in the model tree: