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/UNIT

/UNIT

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/UNIT

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Block Format Keyword

/UNIT - Local Unit System

Description

This keyword is used to define a local unit system for the keywords listed below.

Format

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

/UNIT/unit_ID

unit_title

mass_unit

length_unit

time_unit

 

 

 

 

hmtoggle_plus1Flag Definition

Field

Contents

unit_ID

Optional local unit system identifier

(Integer, maximum 10 digits)

unit_title

Local unit system title

(Character, maximum 100 characters)

mass_unit

Local unit system multiplying factor for mass

(Real) or code

length_unit

Local unit system multiplying factor for length

(Real) or code

time_unit

Local unit system multiplying factor for time

(Real) or code

hmtoggle_plus1Comments
1.The unit keyword works in conjunction with the Input Units System. An Input Units System (keyword: /BEGIN) has to be defined in the input deck.
2.A unit factor must be defined for mass, length and time.
3.Supported codes are defined under the /BEGIN table.
4.Local units system is optional and it is compatible with the following keywords:

material law types: 0, 1, 2, 3, 4, 6, 10, 14, 15, 19, 21, 22, 23, 24, 25, 27, 28, 32, 33, 34, 35, 36, 38, 40, 42, 43, 44, 48, 49, 50, 52, 53, 54, 57, 58, 59, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 87 and 92

property types: 0, 1, 2, 3, 4, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20, 21, 22, 25, 26, 28, 32, 33, 35, 36, 43, 44, 45, 46, 51, /PCOMPP, /STACK and /PLY

interface types: 2, 3, 5, 6, 7, 8, 10, 11, 14, 15, 16, 17, 19, 20, 21, 23 and 24

5.Each of the keywords listed above can be input in its own unit system, which will then be converted to the Input Units System of the input deck, using the multiplying factors that are provided in this format.

Global unit for mass defined in kg_m_s:

/BEGIN/

EXAMPLE_UNIT

#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

/BEGIN

EXAMPLE_UNIT

      140         0

                 kg                   m                   s

                 kg                   m                   s

#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

 

Local unit for mass for a particular option defined in g_m_s:

#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

/UNIT/1

Unit_grams

#              MUNIT               LUNIT               TUNIT

                  g                   m                   s

#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

Use of defined local units for a particular option. In this example use this local unit for /ACCEL with unit_ID=1:

#/ACCEL/accel_ID/unit_ID

/ACCEL/1/1

See Also:

Unit Consistency in User's Guide

Units (User's Guide)

Theory Manual - Appendix A