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AutoFEM Analysis Defining constraints/restraints |  |
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AutoFEM Analysis Defining constraints/restraints | |
FEA generally requires force balancing, hence the model being analysed must be fixed in space. AutoFEM provided dedicated commands (Fixture, Plane of Symmetry, Elastic base) for this, allowing the specification of a constraint's nature (full or partial). Special filters (selectors) facilitate the selection of the model element(s) to which the constraints are applied: faces, edges, vertices. When required, user coordinate systems are provided to specify the orientation of the degrees of freedom. Constraints are shown graphically on the model.
The Restraint dialogue
Defining the restraints of a ShipConstructor model