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Boundary Conditions
Boundary Conditions available for SimSolid.
Cable Tightening/Rod Preload
Apply shortening or change of length for cables/rods.

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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.
- 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

Cable Tightening/Rod Preload

Apply shortening or change of length for cables/rods.

On the Project Tree, open the Analysis Workbench.
On the Analysis Workbench toolbar, click Cable tightening/Rod preload.
Choose from the following options.
- Define Cable shortening as an absolute value or relative percentage for cable tightening.
- Define Rod length change as a value or relative percentage for rod preload.
  Note: Negative input indicates compression and positive input is elongation.
Click OK.
The cable tightening will appear in the Project Tree. If selected, it will be visually represented in the modeling window.