Nodes are the most basic finite element entity. A node represents a physical position on the structure being modeled and is used by an element entity to define the location and shape of that element. It is also used as temporary input to create geometry entities.
A node may contain a pointer to other geometric entities and can be associated directly to them.
Nodes are considered to be used if they are referenced in the definition of an element, system, vector, group, load, equation, or are referenced by any card image on any entity. Unused nodes are automatically deleted and any loads that are attached to unused nodes.
Nodes can not be organized into components. Nodes can be organized into include files, which defines the solver include file they will be exported to. Use the Organize panel to organize nodes into include files. The Organize panel can be opened by clicking the 
icon on the Collectors toolbar.
The following panels can be used to create and edit nodes:
Nodes
Node Edit
Temp Nodes
The data names associated with nodes can be found in the data names section of the HyperMesh Reference Guide.
Solver Card Support for Nodes
The supported RADIOSS starter cards in RADIOSS (Block Format) 5.1, 9.0, 10.0 and 11.0 are listed below. To create these cards, right-click in the Solver browser and select Create Cards from the context menu.
Supported Cards
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Solver Description
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Supported Parameters
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Notes
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/CNODE
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/NODE
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HyperMesh Nodes are used to represent GRID and SPOINT OptiStruct entries.
Supported Cards
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Solver Description
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Supported Parameters
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Notes
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GRID
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Defines the location of a geometric grid point of the structural model, the directions of its displacement, and its permanent single-point constraints.
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Exported in large field format by optistructlf template.
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SPOINT
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Defines a scalar point.
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Ideally a scalar point has no location, but in HyperMesh it is represented as a node.
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Supported Cards
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Solver Description
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Supported Parameters
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Notes
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*NFILL
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Generate nodes for a region of a mesh by filling in nodes between two bounds
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NSET
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These cards are resolved to individual entities on import and are written back on export the same way.
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*NGEN
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Generate nodes incrementally
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NSET
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Currently nodes can only be created incrementally between two nodes.
Nodes generated along a parabola or curve are not supported (LINE=P or C parameter is currently not supported).
SYSTEM parameter is currently unsupported.
These cards are resolved to individual entities on import and are written back on export the same way.
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*NODE
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Specify nodal coordinates
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NSET and SYSTEM
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The SYSTEM parameter is created automatically during export based upon the type of reference coordinate system that is assigned to the nodes.
The card image for a node is displayed in global Cartesian coordinates in HyperMesh.
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Supported Cards
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Solver Description
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Supported Parameters
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Notes
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N
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Defines a node
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NODE, X, Y, Z, THXY, THYZ, THZX
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N
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Defines a node
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R5.1, Type, NODE, SOLID, VAL1, VAL2, VAL3
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N
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Defines a node
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R5.3, LOC, NODE, SOLID, NODLOC, VAL1, VAL2, VAL3
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NBLOCK
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Nodal block
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ID, SOLIDFLG, LINELOC, X, Y, Z
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Supported Cards
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Solver Description
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Supported Parameters
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Notes
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*NODE
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Define a node and it's coordinates in the global coordinate system.
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Card can be previewed, but not edited
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*NODE_RIGID_SURFACE
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Define a rigid node and it's coordinates in the global coordinate system.
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TRSID, NSID
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Card can be previewed, but not edited
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Supported Cards
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Solver Description
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Supported Parameters
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Notes
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GRID
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Defines the location of a geometric grid point, the directions of its displacement, and its permanent single-point constraints.
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PS
SPOINT
CD-1
GRID_COMMENT
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Permanent single point constraint field supported for feinput only. On export, equivalent SPC cards are output.
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SPOINT
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Defines scalar points.
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n/a
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SPOINT is supported the same way GRID is supported. On import or export, all the nodes that are designated to be SPOINT will be converted to nodes at the origin.
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Supported Cards
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Solver Description
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Supported Parameters
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Notes
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CNODE /
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Common node definition
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In the card previewer, use the Common_Node toggle to select NODE or CNODE.
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NODE /
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Node definition
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| Note: | Use the find_cnodes summary template to highlight all CNODE nodes as temporary nodes. |
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See Also:
Browsers
Entities & Solver Interfaces
Geometry
Meshing
Model Setup
