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Vincolo puleggia
Vincolo scambio termico
FEM

Temperatura iniziale

Posizione nel menu
Modello → Vincoli termici → Vincolo temperatura iniziale
Ambiente
FEM
Avvio veloce
Nessuno
Introdotto nella versione
-
Vedere anche
Tutorial FEM

Descrizione

Crea un vincolo temperatura iniziale per l'analisi termomeccanica.

introduced in 1.1: May also be used to prescribe a temperature field in a static analysis step (to simulate thermal expansion with no need for thermomechanical analysis with temperature boundary condition).

Two cubes with different initial temperatures exchanging heat

Utilizzo

  1. Cliccare su o scegliere Modello → Vincoli termici → Vincolo temperatura iniziale dal menu principale.
  2. Inserire un valore iniziale della temperatura per l'analisi.

Limitazioni

Il vincolo applica la temperatura iniziale a tutti i nodi nel modello FEA

Properties

  • DatiInitial Temperature: Initial temperature magnitude.
  • DatiReferences - introduced in 1.1: Regions to which the initial temperature is applied.
  • DatiEnable Final Temperature - introduced in 1.1: Enabled prescribed temperature field in a static analysis step.
  • DatiFinal Temperature - introduced in 1.1: Value of a prescribed temperature field in a static analysis step.
  • DatiEnable Amplitude - introduced in 1.1: Enables the use of CalculiX's amplitude for time variation of the prescribed temperature field. At a given time, magnitude of the field 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
…

Note

  1. Il vincolo usa la **INITIAL CONDITIONS card in CalculiX. Il vincolo temperatura iniziale è spiegato in http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node215.html


Vincolo puleggia
Vincolo scambio termico
FEM

Questa pagina è recuperata da https://wiki.freecad.org/FEM_ConstraintInitialTemperature

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