30.2.2 Rotary inertia element library

Products: Abaqus/Standard Abaqus/Explicit Abaqus/CAE

References

Overview

This section provides a reference to the rotary inertia elements available in Abaqus/Standard and Abaqus/Explicit.

Element type

ROTARYI Rotary inertia at a point

Active degrees of freedom

4, 5, 6

Additional solution variables

None.

Nodal coordinates required

X, Y, Z

Element property definition

Input File Usage:

*ROTARY INERTIA

Abaqus/CAE Usage:

Property or Interaction module: SpecialInertiaCreate: Point mass/inertia: select point: Magnitude: Rotary Inertia

Element-based loading

Distributed loads

Distributed loads are specified as described in “Distributed loads,” Section 33.4.3.

Load ID (*DLOAD):  ROTA^(S)

Abaqus/CAE Load/Interaction:  Not supported

Units:  T^–2

Description:  Rotary acceleration load (magnitude is input as , where is the rotary acceleration).

Load ID (*DLOAD):  ROTDYNF^(S)

Abaqus/CAE Load/Interaction:  Not supported

Units:  T^–1

Description:  Rotordynamic load (magnitude is input as , where is the angular velocity).

Element output

ELKE	Element kinetic energy (available only from Abaqus/Standard).

Nodes associated with the element

1 node.