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Boundary conditions > Structural constraints > Nastran, Simcenter 3D Multiphysics, Abaqus, ANSYS, and LS-DYNA structural constraints > Cylindrical constraint

Cylindrical constraint

A cylindrical constraint defines how a cylindrical face is constrained, in terms of a cylindrical coordinate system. To define the constraint, you can set radial growth (R), axial rotation (theta), and axial growth (Z) to fixed, free, or a displacement value.

Note:

When you define a cylindrical constraint on geometry, a local coordinate system is created and applied to the underlying nodes. If local coordinate systems already exist at these nodes, the constraint's coordinate system may overwrite them. For example, if you define a constraint on a location where spring elements are defined, the constraint's coordinate system may overwrite the spring element definitions.

Where do I find it?

Application Pre/Post
Prerequisite A Simulation file as the work part and displayed partSimcenter Nastran, MSC Nastran, Abaqus, ANSYS, or Simcenter Samcef as the specified solver
Command Finder Cylindrical Constraint
Simulation Navigator Right-click Constraint ContainerNew ConstraintCylindrical Constraint
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Cylindrical constraint, Simcenter 3D 2021.1 Series

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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/id623391 · retrieved 2026-07-17