dmpstr

Mapdl.dmpstr(coeff='', **kwargs)

Sets a constant structural damping coefficient.

APDL Command: DMPSTR

Parameters

coeff – Structural damping coefficient.

Notes

Sets a constant structural (or hysteretic) damping coefficient for use in harmonic (ANTYPE,HARMIC) analyses (FULL, MSUP, and VT) and modal analyses (ANTYPE,MODAL with MODOPT,UNSYM, DAMP or QRDAMP).

Note that for structures with multiple materials, MP,DMPR can also be used to specify constant structural material damping on a per material basis. Note that if both DMPSTR and MP,DMPR are specified, the damping effects are additive.

Caution:: : DMPSTR adds the damping contribution as gK, whereas MP,DMPR adds the contribution on a per-material basis as 2gK. For more information, see Damping Matrices in the Mechanical APDL Theory Reference.

This command is also valid in PREP7.