VELOCITY

Velocity Output Request

Description: Requests velocity vector output.

Format:

Example:

VELOCITY = 25

Option	Definition	Type	Default
PRINT	Grid point velocities will be output to both the Model Results Output File and the results neutral file system.	Character	✓
PLOT	Grid point velocities will be output only to the results neutral file system.	Character
PUNCH	Grid point velocities will be output additionally to the Model Results Punch File.	Character
REAL or IMAG	Requests complex output in rectangular format (real and imaginary).	Character	✓
PHASE	Requests complex output in polar format (magnitude and phase). Phase output is in degrees.	Character
ABS	Requests output as absolute displacement (see Remark 2).	Character	✓
REL	Requests output as relative displacement (see Remark 2).	Character
PSDF	Power spectral density function, RMS, and number of positive crossings output request.	Character
ATOC	Autocorrelation function output request.	Character
RALL	Both PSDF and ATOC will be output.	Character
ALL	Velocities for all grid points will be output.	Character	✓
n	Set identification of previously appearing SET command. Only velocities of grid points whose identification numbers appear on this SET command will be output.	Integer > 0
NONE	Grid point velocities will not be output.	Character

Remarks:

1. Velocity results are output in the global coordinate system. (See CD field on the GRID Bulk Data entry in Section 4, Bulk Data.)
2. Relative velocity output is only applicable to modal transient and linear direct transient response solutions. The reference point for relative motion is defaulted to the direct enforced motion input point. When direct enforced motion is not specified the point with the largest mass in the model is used. The reference point may be specified explicitly using the DYNSOLRELGRID model parameter. See Section 5, Parameters, for more information on DYNSOLRELGRID.