/BEGIN

Block Format Keyword Sets the run name, the version of the input manual, the number of Starter run and input and work unit systems.

Description

This option is required.

Work unit system and Input unit system are used instead of unit system defined previously in: /UNIT/name for input format prior to v10.0.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
/BEGIN
Runname    
Invers                  
Input_mass_unit Input_length_unit Input_time_unit        
Work_mass_unit Work_length_unit Work_time_unit        

Definition

Field Contents SI Unit Example
Runname Run identification name.

(Character, maximum 80 characters)

  
Invers Input version. 8
= 2023
For current release.

(Integer)

  
Input_mass_unit Unit system of input for mass. 7

Default = 1 kg (Real or code)

  
Input_length_unit Unit system of input for length. 7

Default = 1 m (Real or code)

  
Input_time_unit Unit system of input for time. 7

Default = 1 s (Real or code)

  
Work_mass_unit Unit system used for the calculation for mass. 7

Default = 1 kg (Real or code)

  
Work_length_unit Unit system used for the calculation for length. 7

Default = 1 m (Real or code)

  
Work_time_unit Unit system used for the calculation for time. 7

Default = 1 s (Real or code)

  

Comments

  1. To be taken into account, this option must be written after the mandatory keyword # Radioss Starter.
  2. The Runname is defined by the first non-blank character. It may have a maximum of 80 characters and a minimum of four characters. The characters "/" and "\" are not allowed.
  3. The Input unit system defines the unit of the input deck. The work unit system defines which unit has been used during the computation. If the Input unit system is not equal to work unit system, Radioss will convert the input unit system (in Starter file, not in Engine file) to work unit system automatically.
  4. The Work unit system defines the unit in which the calculation is performed. The output is defined in the work unit system.
  5. In submodels, Work unit system defined in /BEGIN of a submodel is ignored: the Work unit system defined in the main /BEGIN card is used.
  6. If an Input unit system is not defined, Input unit system is equal to work unit system.
  7. Codes defining units of length and time are given are (example, SI units: kg for mass, m for length, and s for time):
    Code (Mass)
    Value
    yg
    1.E-27
    zg
    1.E-24
    ag
    1.E-21
    fg
    1.E-18
    pg
    1.E-15
    ng
    1.E-12
    μ g MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqGqFfpeea0xe9vq=Jb9 vqpeea0xd9q8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr 0=vr0db8meaabaqaciGacaGaaeqabaWaaeaaeaaakeaacqaH8oqBca WGNbaaaa@3A0A@ or mug
    1.E-09
    mg
    1.E-06
    cg
    1.E-05
    dg
    1.E-04
    g
    1.E-03
    dag
    1.E-02
    hg
    1.E-01
    kg
    1
    Mg
    1.E+03
    Gg
    1.E+06
    Tg
    1.E+09
    Pg
    1.E+12
    Eg
    1.E+15
    Zg
    1.E+18
    Yg
    1.E+21
    Code (Length)
    Value
    ym
    1.E-24
    zm
    1.E-21
    am
    1.E-18
    fm
    1.E-15
    pm
    1.E-12
    nm
    1.E-09
    μ m MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqGqFfpeea0xe9vq=Jb9 vqpeea0xd9q8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr 0=vr0db8meaabaqaciGacaGaaeqabaWaaeaaeaaakeaacqaH8oqBca WGTbaaaa@3A10@ or mum
    1.E-06
    mm
    1.E-03
    cm
    1.E-02
    dm
    1.E-01
    m
    1
    dam
    1.E+01
    hm
    1.E+02
    km
    1.E+03
    Mm
    1.E+06
    Gm
    1.E+09
    Tm
    1.E+12
    Pm
    1.E+15
    Em
    1.E+18
    Zm
    1.E+21
    Ym
    1.E+24
    Code (Time)
    Value
    ys
    1.E-24
    zs
    1.E-21
    as
    1.E-18
    fs
    1.E-15
    ps
    1.E-12
    ns
    1.E-09
    μ s MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqGqFfpeea0xe9vq=Jb9 vqpeea0xd9q8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr 0=vr0db8meaabaqaciGacaGaaeqabaWaaeaaeaaakeaacqaH8oqBca WGZbaaaa@3A16@ or mus
    1.E-06
    ms
    1.E-03
    cs
    1.E-02
    ds
    1.E-01
    s
    1
    das
    1.E+01
    hs
    1.E+02
    ks
    1.E+03
    Ms
    1.E+06
    Gs
    1.E+09
    Ts
    1.E+12
    Ps
    1.E+15
    Es
    1.E+18
    Zs
    1.E+21
    Ys
    1.E+24

    Radioss does not have a built-in unit system, so it is very important to keep unit consistency in your model.

    As an alternative to the unit code, the equivalent value may be input instead.

  8. Available Inverse values:
    Invers
    Radioss Version
    90
    Used from 9.0
    100
    Used from 10.0
    110
    Used from 11.0
    120
    Used from 12.0
    130
    Used from 13.0
    140
    Used from 14.0
    2017
    Used from 2017
    2018
    Used from 2018
    2019
    Used from 2019
    2020
    Used from 2020
    2021
    Used from 2021
    2022
    Used from 2022
    2023
    Used from 2023 (current format)

    Any supported input format can be used with the latest Radioss version. New features added in a given version are available only with the Invers value of that Radioss version or higher. Input formats previous to those listed in the table are no longer supported. The model format should be updated using HyperMesh.