# PARAM, PSDPRINC

Bulk Data Entry The PSD/RMS Absolute Maximum Principal Stress for Random Response Analysis is output or not.

Parameter Values Description
PSDPRINC <YES, NO>

Defaults:

When the parameter is not present in the deck, then Maximum principal stress is not calculated or output.

When the parameter is present in the deck, but no option/value is provided, then the Absolute Maximum Principal stress is calculated and output.

YES
The PSD/RMS Absolute Maximum Principal Stress for Random Response Analysis is output.
NO
PSD/RMS Absolute Maximum Principal Stress for Random Response Analysis is not calculated or output.