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Using Selected boundaries makes all selected boundaries to be rigidly connected to the point on the beam.
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For Distance (Automatic), all parts on the solid boundary, which are within the default distance from the beam point, are connected. This distance is determined by the cross section properties of the beam. It is contained in the variable beam.re as described in the documentation for The Beam Interface.
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For Distance (Manual) enter a Connection radius rc. All parts on the solid boundary, which are within the given distance from the beam point, are connected.
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For Connection criterion enter a Boolean expression in the text field. The beam is connected to the selected solid boundaries, wherever the expression has a nonzero value. The default value is 1, which is equivalent to using the Selected boundaries option.
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Using Selected boundaries makes all selected boundaries to be rigidly connected to the point on the beam. This is mainly useful if the boundary has approximately the same shape as the physical size of the beam, such as a rectangle with the same width as a beam flange.
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For Beam width, enter a Width w. All parts on the solid boundary, which are within the given distance from the projection of the beam axis on the solid, are connected. For cases when the beam is asymmetric, that is when the connection distance from the beam axis is not the same in both directions, enter also an Offset d. The positive orientation of the offset is , where n is the outward normal of the solid, and t is the positive orientation of the beam edge.
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For Connection criterion enter a Boolean expression in the text field. The beam is connected to the selected solid boundary, wherever the expression has a nonzero value. The default value is 1, which is equivalent to using the Selected boundaries option.
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When there are many interconnected constraints, it may also be useful to change Null-Space Function to Orthonormal or Explicit — Orthonormal, but doing so may increase the memory consumption significantly.
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