alphad

Mapdl.alphad(value='', **kwargs)

Defines the mass matrix multiplier for damping.

APDL Command: ALPHAD

Parameters:

value

Mass matrix multiplier for damping.

Notes

This command defines the mass matrix multiplier α used to form the viscous damping matrix [C] = α[M] where [M] is the mass matrix.

Values of α may also be input as a material property (use the ALPD label on the MP command). If ALPD is included, the ALPD value is added to the ALPHAD value as appropriate (see Damping Matrices in the Mechanical APDL Theory Reference). Damping is not used in the static (ANTYPE,STATIC) or buckling (ANTYPE,BUCKLE) analyses.

This command is also valid in PREP7.