11.01.2013 Views

NX Nastran DMAP Programmer's Guide - Kxcad.net

NX Nastran DMAP Programmer's Guide - Kxcad.net

NX Nastran DMAP Programmer's Guide - Kxcad.net

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

CYCLIC2 Processes degrees-of-freedom<br />

CYCLIC2<br />

Processes degrees-of-freedom<br />

Processes degrees-of-freedom that are to be constrained between segments for cyclic<br />

symmetry problems.<br />

Format:<br />

CYCLIC2 GEOM4,EQEXIN,USET/<br />

CYCD/<br />

NSEG/CTYPE $<br />

Input Data Blocks:<br />

GEOM4 Table of Bulk Data entry images related to constraints, degree-offreedom<br />

membership and rigid element connectivity.<br />

EQEXIN Equivalence table between external and internal grid/scalar<br />

identification numbers.<br />

USET Degree-of-freedom set membership table.<br />

Output Data Block:<br />

CYCD Table of constraints in harmonic components.<br />

Parameters:<br />

NSEG Input-integer-no default. Number of cyclic segments as specified on<br />

CYSYM Bulk Data entry.<br />

CTYPE Input-character-no default. Cyclic symmetry type as specified on<br />

CYSYM Bulk Data entry.<br />

'ROT' Rotational<br />

'AXI' axisymmetric<br />

'DIH' Dihedral<br />

Remarks:<br />

1. CYCLIC2 is a preprocessor for the CYCLIC3 and CYCLIC4 modules is specified<br />

before the harmonic index loop in <strong>DMAP</strong>.<br />

2. CYCLIC2 processes CYJOIN, CYAX, and CYSUP Bulk Data entry images in<br />

GEOM4 and identifies the constraints between the degrees-of-freedom in the<br />

analysis set for the cosine (symmetric) and sine (antisymmetric) models.<br />

827

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!