Assigning a Touching Boundary for the Transient Solver
For non-periodic translational motion designs in which a moving part contacts a stationary part this boundary condition assigns a touching boundary to the face of the moving part that contacts the stationary part. When the model is created, there must be an airgap between the moving objects and the stationary objects although these can touch during the simulation (either at beginning or end).
For example, with this feature, the linear actuator can be modeled from one end directly touching the stationary part to the other end also directly touching the stationary part as shown; however the initial model must be drawn without touching the ends as shown in the center image below.
To assign a touching boundary to a non-periodic translational motion part:
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Select the face of the geometry on which you want to apply the boundary condition (the face of the 3D moving body that will touch a stationary part).
Note:- The touching boundary should be defined on the surface of the moving part.
- The touching boundary can only be applied to the moving part with non-periodic translation motion.
- At any timestep, each touching boundary must either fully touch the stationary part or be completely separated from the stationary part. The touching boundary can not partially touch the stationary part at any time.
- The moving and stationary parts are not allowed to be on one conduction path.
- Moving object(s) cannot touch the stationary objects in the initial model.
- Click Maxwell > Boundaries > Assign > Touching.
The Touching Boundary window appears. - Enter a name for the boundary in the Name box, or accept the default.
- Click OK to assign the boundary to the selected object.