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NX Nastran DMAP Programmer's Guide - Kxcad.net

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IFT Performs an inverse Fourier transform<br />

IFT<br />

Performs an inverse Fourier transform<br />

Performs an inverse Fourier transform to convert the frequency response solution<br />

matrix to the time domain.<br />

Format:<br />

IFT UXF,CASECC,TRL,FOL/<br />

UXT,TOL/<br />

IFTM $<br />

Input Data Blocks:<br />

UXF Solution matrix from frequency response analysis in d- or h-set.<br />

CASECC Table of Case Control command images.<br />

TRL Transient response list.<br />

FOL Frequency response frequency output list.<br />

Output Data Blocks:<br />

UXT Solution matrix from transient response analysis in d- or h-set.<br />

TOL Transient response time output list.<br />

Parameters:<br />

IFTM Input-integer-default=1. Fourier transform method.<br />

0 Constant<br />

1 Piecewise linear (default)<br />

2 Cubic spline<br />

109

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