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NX Nastran DMAP Programmer's Guide - Kxcad.net

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Data Block Naming Conventions<br />

Stiffness, Damping, and Mass:<br />

K_____ Stiffness<br />

KD____ Differential stiffness<br />

B_____ Viscous damping<br />

K4____ Structural damping (See GE field on MATi entries)<br />

__2DD Stiffness in dynamic formulation<br />

M____ Mass<br />

___JJ Stiffness, damping, and mass matrices without upstream<br />

superelement contributions. Exception: __AJJ_ is the aerodynamic<br />

influence matrix.<br />

L__, U__ Lower and upper triangular decomposition factors<br />

Note: Some of the above names may be prefixed with a "C" to indicate a complex<br />

matrix.<br />

Superelements:<br />

CM____ Superelement (component) modes<br />

_____S Assigned only to SEP2 and GP1 module outputs<br />

__LIST Superelement processing list; for example, SLIST, DRLIST, and<br />

DSLIST<br />

MAPS Superelement boundary grid map<br />

SEMAP Superelement map<br />

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