dcgomg#

Inertia.dcgomg(dcgox='', dcgoy='', dcgoz='', **kwargs)#

Specifies the rotational acceleration of the global origin.

Mechanical APDL Command: DCGOMG

Parameters:
dcgoxstr

Rotational acceleration of the global origin about the acceleration system X, Y, and Z axes.

dcgoystr

Rotational acceleration of the global origin about the acceleration system X, Y, and Z axes.

dcgozstr

Rotational acceleration of the global origin about the acceleration system X, Y, and Z axes.

Notes

Specifies the rotational acceleration of the global origin about each of the acceleration coordinate system axes ( cgloc ). Rotational accelerations may be defined in these analysis types:

  • Static ( antype,STATIC)

  • Harmonic ( antype,HARMIC) – full, VT [ DCGOMG_FN_VT_KRY ], Krylov [ DCGOMG_FN_VT_KRY ], or mode-superposition [ DCGOMG_mode-sup_LoadSupport ]

  • Transient ( antype,TRANS) – full or mode-superposition [ DCGOMG_mode-sup_LoadSupport ]

  • Substructuring ( antype,SUBSTR)

  • Modal ( antype,MODAL)

Loads for VT and Krylov methods are supported as long as they are not:

  • complex tabulated loads (constant or trapezoidal loads in tabulated form are supported)

  • used in conjunction with Rotordynamics ( coriolis,on).

In a mode-superposition 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 file, which you can apply via the lvscale command.

See Acceleration Effect 2.

The dcgomg command supports tabular boundary conditions (TABNAME_X, TABNAME_Y, and TABNAME_Z) for DCGOMG_X, DCGOMG_Y, and DCGOMG_Z input values ( dim ) for full transient and harmonic analyses.

Related commands are acel, cgloc, cgomga, domega, and omega.

See Analysis Tools

This command is also valid in PREP7.