/MONVOL/PRES
Block Format Keyword Describes the pressure load curve monitored volume type.
Format
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
---|---|---|---|---|---|---|---|---|---|
/MONVOL/PRES/monvol_ID/unit_ID | |||||||||
monvol_title | |||||||||
surf_IDex | |||||||||
Ascalet | |||||||||
fct_ID | Fscale | Itypfun |
Definitions
Field | Contents | SI Unit Example |
---|---|---|
monvol_ID | Monitored volume
identifier (Integer, maximum 10 digits) |
|
unit_ID | Unit Identifier (Integer, maximum 10 digits) |
|
monvol_title | Monitored volume
title (Character, maximum 100 characters) |
|
surf_IDex | External surface
identifier. (Integer) |
|
Ascalet | Abscissa scale factor for
time based functions. (Real) |
[s] |
fct_ID | Load curve identifier for
relative pressure
Prel(V0V)
or
Prel(t)
depending on
Itypfun input. (Integer) |
|
Fscale | Load curve scale factor
for relative pressure. Default = 1.0 (Real) |
[Pa] |
Itypfun | Argument of the relative
pressure function flag.
(Integer) |
Comments
- The relative pressure is defined as, Prel = pressure inside of monitored volume - atmospheric pressure.
- surf_IDex must be defined using segments associated with 4- or 3-nodes shell elements (possibly void elements) and not with /SURF/SEG.
- The volume must be closed and the normals must be oriented outwards.
- Abscissa scale factors are used to
transform abscissa units in airbag functions, for example:
(1) F(t′)=fct_IDt=f(tAscalet)Where,- t
- Time
(2) F(P')=fct_IDP=f(PrelAscaleP)Where,- Prel
- Relative pressure