FEM: Constraint Force
Appearance
Outdated translations are marked like this.
|
|
| Menu location |
|---|
| Model → Mechanical Constraints → Constraint force |
| Workbenches |
| FEM |
| Default shortcut |
| None |
| Introduced in version |
| - |
| See also |
| FEM tutorial |
Descriere
Această comandă aplică o forță de valoare dată [N] la geometria țintei selectată.
Cum se folosește
1)Aplicarea unei forțe în direcția normală a unei fațete
- If you have Mesh displayed, you need to hide it (select the mesh object and press spacebar or right click and select Hide item) and show the original model.
- Click on a face to which a force should be applied. It will appear in the list of geometrical objects.
- Fill in Line load with a force value in [N] (attention: Not in [N/m])
- Direction: In a typical case, you'll click this field empty to apply a force in normal direction to the face. You can revert the direction of the force by clicking Reverse direction. In other cases, you need to pick a face or plane, which is in normal to the force direction (it could differ from the face, to which the force is being applied)
- Click pe obiectul Close to finish the dialog and create
ConstraintForce
Properties
- DateEnable Amplitude - introduced in 1.1: Enables the use of CalculiX's amplitude for the time variation of the force 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.
- DateAmplitude 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
Notes
- The defined force is applied uniformly to the selected objects. For example, if you define one force load with 200 N applied to two faces having the same area, each face will be uniformly loaded with 100 N.
- This feature uses the *CLOAD card in CalculiX.
- Materials: Solid Material, Fluid Material, Non-Linear Mechanical Material, Reinforced Material (Concrete); Material Editor
- Element Geometry: Beam Cross Section, Beam Rotation, Shell Plate Thickness, Fluid Section for 1D Flow
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- Geometrical Analysis Features: Plane Multi-Point Constraint, Section Print Feature, Local Coordinate System
- Mechanical Boundary Conditions and Loads: Fixed Boundary Condition, Rigid Body Constraint, Displacement Boundary Condition, Contact Constraint, Tie Constraint, Spring Boundary Condition, Force Load, Pressure Load, Centrifugal Load, Gravity Load
- Thermal Boundary Conditions and Loads: Initial Temperature, Heat Flux Load, Temperature Boundary Condition, Body Heat Source
- Overwrite Constants: Constant Vacuum Permittivity
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