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06/10/13 UNITS
www.altairhyperworks.com/hwhelp/Altair/hw12.0/help/hwsolvers/units_io.htm?toc=0&printWindow 1/2
HyperWorks Solvers
UNITS
I/O Options Entry
UNITS - Unit System for the Model
Description
The UNITS command can be used in the I/O Options section to define a system of units for the
model.
Format
UNITS = system
Argument Options Description
system <SI, CGS, MPA,
BG>
No default
SI: International system of units.
Length: meter = m
Mass: kilogram = kg
Time: second = s
Temperature: Kelvin = K
Pressure - Pa
CGS: Centimeter-gram-second system of units.
Length: centimeter = cm
Mass: gram = g
Time: second = s
Temperature: Kelvin = K
Pressure = barye = 0.1 Pa
MPA: Mega-Pascal system of units.
Length: millimeter = mm
Mass: tonne = tonne
Time: second = s
Temperature: Kelvin = K
Pressure - MPa
BG: British Gravitational system of units.
Length: feet = ft
Mass: slug = slug
Time: second = s
Temperature: Rankine = R
Pressure = Ibf/ft2
Comments
1. Only one instance of this card is supported. If multiple instances are defined, the lastoccurrence will be used.
06/10/13 UNITS
www.altairhyperworks.com/hwhelp/Altair/hw12.0/help/hwsolvers/units_io.htm?toc=0&printWindow 2/2
2. This UNITS data entry is the same as the DTI,UNITS entry.
Go To
I/O Options Section
I/O Options by Function
The Input File