| Description | Type | Default |
|---|---|---|
|
Controls the calculation of inertial relief or enforced acceleration in LINEAR STATIC solutions. INERTIALRELIEF set to ON or -1 requests that inertial relief be performed using the fixed point method. A SUPORT entry is required to be defined for a single grid point. The model must be fully constrained against rigid body motion about that point. Loads due to unit body accelerations at the point referenced by PARAM, GPWEIGHT or PARAM, GRDPNT are calculated and then appended to the global load vector. If a SUPORT is not specified, one will be generated automatically for all six degrees of freedom at the grid point specified by PARAM, GPWEIGHT or PARAM, GRDPNT. The AUTO setting requests that inertial relief be performed using Automated Inertial Relief Analysis (AIRA). AIRA does not require any model constraints or SUPORT entry or PARAM, GRDPNT settings. The model center of mass is automatically located and selected as the frame of reference. The model is stabilized using internally generated bush elements with a stiffness that is based on model characteristics. |
Integer ON/OFF AUTO |
0 OFF |