PARAM, LOWRANK

Bulk Data Entry This parameter is obsolete. Use PARAM,K4METH to control the value of LOWRANK.

Parameter Values Description
LOWRANK <0, -1> This parameter is obsolete. Use PARAM, K4METH to control the value of LOWRANK.
PARAM, LOWRANK relates to the faster Modal Frequency Response solution method invoked by PARAM, FASTFR and the FastFRS solution invoked by PARAM, FFRS. LOWRANK is used to select the solution strategy used to handle the modal structural damping matrix.
0 (Default)
The full eigensolution method is used.
-1
A low rank representation of the matrix found in structural damping is used.