**CMDOMEGA**, * CM_NAME*,

`DOMEGAX`

`DOMEGAY`

`DOMEGAZ`

`X1`

`Y1`

`Z1`

`X2`

`Y2`

`Z2`

Compatible Products: DesSpc | Pro | Premium | Enterprise | Ent PP | Ent Solver | –

,`CM_NAME`

The name of the element component.

,`DOMEGAX`

,`DOMEGAY`

`DOMEGAZ`

If the

,`X2`

,`Y2`

fields are not defined,`Z2`

,`DOMEGAX`

, and`DOMEGAY`

specify the components of the rotational acceleration vector in the global Cartesian X, Y, Z directions.`DOMEGAZ`

If the

,`X2`

,`Y2`

fields are defined, only`Z2`

is required.`DOMEGAX`

specifies the scalar rotational acceleration about the rotational axis. The rotational direction of`DOMEGAX`

is designated either positive or negative, and is determined by the “right hand rule.”`DOMEGAX`

,`X1`

,`Y1`

`Z1`

If the

,`X2`

,`Y2`

fields are defined,`Z2`

,`X1`

, and`Y1`

define the coordinates of the beginning point of the rotational axis vector. Otherwise,`Z1`

,`X1`

, and`Y1`

are the coordinates of a point through which the rotational axis passes.`Z1`

,`X2`

,`Y2`

`Z2`

The coordinates of the end point of the rotational axis vector.

Specifies the rotational acceleration components * DOMEGAX*,

`DOMEGAY`

`DOMEGAZ`

`CM_NAME`

You can define the rotational acceleration and rotational axis
with the **CMDOMEGA** command for STATIC, HARMIC, TRANS,
and SUBSTR analyses. Rotational velocities are combined with the element
mass matrices to form a body force load vector term. Units are radians/time^{2}.

The **CMDOMEGA** command supports tabular boundary conditions
(%* TABNAME_X*%, %

`TABNAME_Y`

`TABNAME_Z`

`DOMEGAX`

`DOMEGAY`

`DOMEGAZ`

`X2`

`Y2`

`Z2`

Related commands are **ACEL**, **CGLOC**, **CGLOC**, **OMEGA**, **CMOMEGA**, **DCGOMG**, **DOMEGA**.

See Analysis Tools in the Mechanical APDL Theory Reference for more information.

You can use the **CMDOMEGA** command in conjunction
with any one of the following two groups of commands, but not with
both groups simultaneously:

GROUP ONE: OMEGA, DOMEGA. |

GROUP TWO: CGOMGA, DCGOMG, CGLOC. |

Components for which you want to specify rotational loading must consist of elements only. The elements you use cannot be part of more than one component, and elements that share nodes cannot exist in different element components. You cannot apply the loading to an assembly of element components.

In a modal harmonic or transient analysis, you must apply the
load in the modal portion of the analysis. Mechanical APDL calculates a load
vector and writes it to the mode shape file, which you can apply via
the **LVSCALE** command.

See Acceleration Effect in the *Mechanical APDL Theory Reference* for more information.

This command is also valid in PREP7.