Import ANSYS File: Nodes

Description

ANSYS uses N to specify a node coordinate at a given position according to the active coordinate system. A nodal coordinate system may also be specified.

ANSYS uses NBLOCK to specify multiple node coordinates at given positions according to the active coordinate system. Nodal coordinate systems may also be specified. NBLOCK is a CDB format specific command.

ANSYS uses NRRANG to specify the range of nodes to be read from the node file defined by NREAD. NRRANG is a Batch format specific command.

ANSYS uses NREAD to read node coordinates from a text file. Nodal coordinate systems may also be specified. NREAD is a Batch format specific command.

ANSYS uses NMODIF to modify the position of a node coordinate according to the active coordinate system. A nodal coordinate system may also be specified.

ANSYS uses NROTAT to align the nodal coordinate system of a node coordinate with the active coordinate system.

ANSYS uses NANG to align the nodal coordinate system of a node coordinate with an orthogonal set of direction vectors.

Creating Nodes

Straus7 creates new nodes at the specified positions. The position is transformed into global Cartesian coordinates according to the active coordinate system.

Nodal Coordinate Systems

Straus7 creates user-defined Cartesian coordinate systems from the nodal coordinate systems when required by a node attribute. Straus7 posts these coordinate systems as new user-defined coordinate systems with the default title "ANSYS Node UCS N".

Node Numbering

New Straus7 nodes are numbered sequentially (starting at 1), whereas nodes in the ANSYS file can be arbitrarily numbered (as long as all node numbers are unique). In general, new Straus7 node numbers will not be the same as their corresponding ANSYS node numbers. The ANSYS node numbers are assigned to the Straus7 nodes as ID attributes.