Parameter

Values

Description

INREL

<0, -1, -2>
Default = 0

INREL controls the calculation of inertia relief.

-2 requests inertia relief analysis without the need for a SUPORT/SUPORT1 entry.

-1 requests that inertia relief be performed. SUPORT or SUPORT1 cards are required in the bulk data section to restrain rigid body motion. The total number of degrees-of-freedom specified on SUPORT and SUPORT1cards must be less than or equal to six.

0 requests that a static analysis be performed. SUPORT and SUPORT1 cards are treated like SPC ’s in this case.