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Boundary Conditions
Boundary Conditions available for SimSolid.
Force/Displacement
Apply uniform loads and/or displacements to faces, edges, vertices, or spots.

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Boundary Conditions
Boundary Conditions available for SimSolid.
- Available Boundary Conditions for Analyses
  A comparison chart showing the available boundary conditions for each analysis type.
- Immovable Constraints
  Enforce zero translational displacements in all directions on faces, edges, vertexes, and/or spots.
- Slider Constraints
  Enforce zero displacement in normal to the surface direction on faces and areal spots.
- Hinge Constraints
  Allow free rotation about the centerline of cylindrical faces, and constrain movement in radial and axial directions.
- Spring Support
  Set an elastic foundation at selected faces.
- General Constraints
  Constrain displacement of faces, edges, vertices, or spots in Modal analysis.
- Alignment Constraints
- Cable Tightening/Rod Preload
  Apply shortening or change of length for cables/rods.
- Pressure
  Apply positive pressure towards a face or negative pressure outwards from a face.
- Force/Displacement
  Apply uniform loads and/or displacements to faces, edges, vertices, or spots.
  - Imported Forces
    Apply forces, spot forces, and spot displacements from an external comma separated values (.csv) file.
- Gravity Load
  Simulate the force of gravity as it affects your model.
- Translational Inertia Load
  Apply a uniformly distributed translational inertia load over the volumes of the parts in an assembly.
- Rotational Inertia Load
  Apply a uniformly distributed rotational inertia load over the volumes of the parts in an assembly.
- Inertia Relief
  Simulate deformations and stresses in cases where you have an unconstrained structure to which an active load is suddenly applied.
- Remote Load
  Apply distributed loads (tractions) to faces, general virtual connector, or spots that are statistically equivalent to a load applied on a single point.
- Remote Displacement
  Apply displacements to faces and/or spots that are statistically equivalent to a load applied on a single point.
- Thermal Load
  Simulate deformations and stresses induced by the temperature changes in your model.
- Bearing Load
  Apply a varying pressure load to full or partial face(s) of revolution.
- Hydrostatic Pressure
  Define pressure exerted by a fluid at equilibrium.
- Distributed Mass
  Apply distributed mass across selected faces.
- Bolt/Nut Tightening Loads
  Available for blind bolts (bolt without a nut), bolt with nut/bolt on threaded rod, nut on generic post or handle.
- Base Excitation
- Volume Expansion/Shrinkage
  Apply volumetric expansion/shrinkage coefficient over seam welds or other parts in the assembly.
- Temperature
  In thermal analysis, limit temperature on the selected faces, edges, vertices, or spots to a prescribed value.
- Thermal Convection
  In thermal analysis, define a convective heat exchange condition on faces and spots.
- Surface Heat Flux
  In thermal analysis, apply uniformly distributed heat loads to faces and spots.
- Volume Heat Loads
  In thermal analysis, simulate internal heat generation and internal heat absorption in volumes.
- Solar Loads
  Apply heat loads based on the sunbeam’s direction for thermal analysis
- Wind Loads
  Theory of wind load
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Frequently Asked Questions
This section provides quick responses to typical and frequently asked questions regarding

Force/Displacement

Apply uniform loads and/or displacements to faces, edges, vertices, or spots.

For dynamic analyses, each load direction must reference a time/frequency function curve.

Note: Displacement is disabled for multi-loadcases.

On the Project Tree, open the Analysis Workbench.
In the workbench toolbar, click the (Force/Displacement) icon.
Specify which type of entity will have constraints applied.
Optional: If applying to Faces, you can select the Add tangent faces check box.
Optional: If applying to Spots, create new spots by clicking Create new spot.
On the modeling window, click to select specific parts on the model.
Specify the coordinate system to which the force/displacement will be applied.
The default is set to the Global coordinate system, which is automatically created upon geometry import.
Specify Cartesian or Cylindrical.
Specify the Force and Displacement units.
Specify Total load or displacement along the X, Y, and Z axes.
1. Use the drop-down menu beside each field to select Force or Displacement.
2. Enter the desired numerical value into the text box.
In Non-linear Structural Analysis, specify either follower force or fixed direction force for each axis.
1. Click the (Follower load) icon.
  The icon will highlight. This designates a follower force.
2. Leave the icon unhighlighted to designate fixed direction force.
Click OK.