Adams Basic Package > Adams Solver > Welcome to Adams Solver Subroutines > Utility Subroutines > GTUNTS

GTUNTS

GTUNTS returns model unit information from Adams Solver.

Use

Called By

Any user-written subroutine

Prerequisite

None

Calling Sequence

CALL GTUNTS (exist, scales, units)

Output Arguments

 
exist
A logical variable that, if true, indicates units were set for the model.
scales
A double-precision array containing conversion factors to go from model units to SI for time, length, force, and mass.
units
A character*2 array containing two-letter abbreviations for the model units for time, length, force, and mass.

Example

For example, if you have an Aero_Force defined in Newtons, and you want to convert to model units, you must divide your force by scales(3).
DOUBLE PRECISION SCALES(4)
LOGICAL EXIST
CHARACTER*2 UNITS(4)
INTEGER TIME, LENGTH, FORCE, MASS PARAMETER
(TIME=1,LENGTH=2,FORCE=3, MASS=4)
CALL GTUNTS(EXIST, SCALES, UNITS)
Model_Force = Aero_Force/SCALES(FORCE)
To compute a spring in MKS units, give disp, flen, and K in model units:
MKS_F = ((flen - disp)*K)*SCALES(FORCE)
 
Caution:  
GTUNTS uses the UNITS statement in your dataset to determine the units being used in your model. When a UNITS statement is missing, or if you use a unit consistency factor (UCF), GTUNTS is not able to determine time, length, mass, or force units. In that case, GTUNTS returns:
■exist = FALSE
■scales = 1.0, 1.0, 1.0, 1.0
■units = US