naxis#

Nodes.naxis(action='', val='', **kwargs)#

Generates nodes for general axisymmetric element sections.

Mechanical APDL Command: NAXIS

Parameters:
actionstr

Specifies one of the following command behaviors:

  • GEN - Generates nodes around the axis of an axisymmetric section (default).

  • CLEAR - Clears all nodes around the axis of an axisymmetric section.

  • EFACET - Specifies the number of facets per edge between nodal planes and integration planes in the circumferential direction to display using PowerGraphics. This option is only valid with eshape,1 and rsys,SOLU commands.

valstr

Tolerance value or number of facets per edge:

  • TOLER - When Action = GEN, the tolerance to use for merging the generated nodes around the axis.

  • NUM - When Action = EFACET, the number of facets per element edge for element plots:

    • AUTO - Use program-chosen facets per edge (default).

    • 1 - Use 1 facet per edge (default for elements with 9, 10, 11, or 12 nodal planes). Shows nodal and integration planes only.

    • 2 - Use 2 facets per edge (default for elements with 5, 6, 7, or 8 nodal planes, and maximum for elements with 9, 10, 11, or 12 nodal planes).

    • 3 - Use 3 facets per edge (default for elements with 3 or 4 nodal planes, and maximum for elements with 6, 7, or 8 nodal planes).

    • 4 - Use 4 facets per edge (maximum for elements with 5 nodal planes).

    • 5 - Use 5 facets per edge (maximum for elements with 4 nodal planes).

    • 6 - Use 6 facets per edge (maximum for elements with 3 nodal planes).

Notes

The naxis command generates or clears the nodes for general axisymmetric element sections. The command applies to elements SURF159, SOLID272, and SOLID273.

The generate option ( Action = GEN) operates automatically on any current-technology axisymmetric element. Any nodes within the tolerance value ( TOLER ) of the axis are merged into a single node. The default tolerance is 1.0e-4.

If you want to change the number of nodes, use the clear option ( Action = CLEAR) before regenerating the nodes.

To cause the 3D element plot to appear more like the actual 3D model, use naxis,EFACET, NUM, where NUM > 1. In this case, the coordinate system specified for displaying element and nodal results (RSYS) must be solution ( rsys,SOLU); otherwise, Ansys resets NUM to 1.