| G3052
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WARNING: G3052
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CHECK NORMAL FOR CONTACT ELEMENT
id CONTACT SEGMENT
id
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Cause:
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For slide line elements:
- A grid point referenced on a secondary slide line was initially positioned well below the primary line contact boundary.
- This usually indicates that the y-axis of the slide line primary segment is pointing away from one or more secondary grid points.
For contact surface elements:
- A grid point referenced on a secondary contact surface was initially positioned well below the primary surface contact boundary.
- This usually indicates that the z-axis of the surface contact primary segment is pointing away from one or more secondary grid points. The nodal ordering of the primary slide line defines the element y-axis, which must point toward the secondary region.
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Action:
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For slide line elements:
- Check that the slide line plane vector specified on the
BCONP entry is oriented correctly.
- Try changing the penetration type on the BCONP entry to unsymmetrical.
- Check the ordering of the primary slide line grid points and regenerate if necessary.
For contact surface elements:
- Try changing the penetration type on the
BSCONP entry to unsymmetrical.
- Check the ordering of the primary contact surface grid points and regenerate if necessary. The nodal ordering of the primary contact surface defines the element z-axis, which must point toward the secondary region.
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Remarks:
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See Autodesk Nastran Reference Guide, Section 4,
Bulk Data, for entry format and additional remarks.
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