FEM ConstraintPressure/it
|
|
| Posizione nel menu |
|---|
| Modello → Vincoli meccanici → Vincolo pressione |
| Ambiente |
| FEM |
| Avvio veloce |
| Nessuno |
| Introdotto nella versione |
| - |
| Vedere anche |
| Tutorial FEM |
Descrizione
Si applica un vincolo di pressione a una faccia.
Utilizzo
- Cliccare su
o scegliere Modello → Vincoli meccanici → Vincolo pressione dal menu principale. - Cliccare su Aggiungi riferimento e selezionare una faccia nella vista 3D.
- Specificare un carico di pressione in MPa nella finestra.
- Se necessario, spuntare la casella per invertire la direzione.
Pressure load applied to a cylinder
Properties
- DatiEnable Amplitude - introduced in 1.1: Enables the use of CalculiX's amplitude for the time variation of the pressure load. At a given time, magnitude of the load is multiplied by the amplitude value corresponding to that time. Linear interpolation is used between the specified values. Constant values are used outside of the specified range.
- DatiAmplitude Values - introduced in 1.1: Amplitude table in the following format:
time_1, amplitude_value_1 …
- Default is linear increase from 0% at t=0 to 100% at t=1:
0, 0 1, 1
Note
- La distribuzione della pressione sulla faccia è sempre uniforme e sempre perpendicolare alla faccia.
- Pressione sulle facce: https://tracker.freecad.org/view.php?id=3050
FEM
- Materials: Solid, Fluid, Nonlinear mechanical, Reinforced (concrete); Material editor
- Element geometry: Beam (1D), Beam rotation (1D), Shell (2D), Fluid flow (1D)
Constraints
- Electromagnetic: Electrostatic potential, Current density, Magnetization
- Geometrical: Plane rotation, Section print, Transform
- Mechanical: Fixed, Displacement, Contact, Tie, Spring, Force, Pressure, Centrif, Self weight
- Thermal: Initial temperature, Heat flux, Temperature, Body heat source
- Overwrite Constants: Constant vacuum permittivity
- Solve: CalculiX Standard, Elmer, Mystran, Z88; Equations: Deformation, Elasticity, Electrostatic, Electricforce, Magnetodynamic, Magnetodynamic 2D, Flow, Flux, Heat; Solver: Solver control, Solver run
- Results: Purge, Show; Postprocessing: Apply changes, Pipeline from result, Warp filter, Scalar clip filter, Function cut filter, Region clip filter, Contours filter, Line clip filter, Stress linearization plot, Data at point clip filter, Filter function plane, Filter function sphere, Filter function cylinder, Filter function box
- Additional: Preferences; FEM Install, FEM Mesh, FEM Solver, FEM CalculiX, FEM Concrete; FEM Element Types
User documentation
- Getting started
- Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
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