SPOINT
SPOINT, NODE,
X, Y, Z,
InertiaKey
Defines a point for force/moment summations or inertia calculation
NODENode number of the desired point. If zero, use
X,Y,Zto describe point.X,Y,ZGlobal Cartesian coordinates of the desired summation point. Used if
NODEis 0. Defaults to (0,0,0).InertiaKeyInertia key:
OFF
—
Point or node is used for the force/moment summations (default).
ON
—
Point or node is used for the calculation of total inertia.
Notes
By default (InertiaKey =
OFF), defines a point (any point other than the origin) about which the tabular moment
summations are computed. If force summations are desired in other than the global Cartesian
directions, a node number must be specified on the NODE field,
and the desired coordinate system must be activated with
RSYS. The command must be issued in the /POST1
module.
When the inertia key is activated
(InertiaKey = ON), the total inertia printed in the precise mass
summary is calculated with respect to the point or node in the global Cartesian system. In this
case, the command must be issued during the first load step in the /SOLU
module.