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NX Nastran DMAP Programmer's Guide - Kxcad.net

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EPT Element property table<br />

Record 0 – HEADER<br />

Word Name Type Description<br />

1 NAME(2) CHAR4 Data block name<br />

EPT<br />

Element property table<br />

Record 1 – PAABSF(1502,15,36) – Acoustic absorber element with frequency<br />

dependence<br />

Defines the properties of a frequency-dependent acoustic absorber<br />

Word Name Type Description<br />

1 PID I Property identification number<br />

2 TZREID I TABLEDi entry identification number for<br />

resistance<br />

3 TZMID I TABLEDi entry identification number for<br />

reactance<br />

4 S RS Impedance scale factor<br />

5 A RS Area factor when only 1 or 2 grid points are<br />

specified<br />

6 B RS Equivalent structural damping<br />

7 K RS Equivalent stiffness<br />

8 RHOC RS Constant used for absorption coefficient<br />

Record 2 – PACABS(8300,83,382) – Acoustic absorber element<br />

Defines the properties of the acoustic absorber element<br />

Word Name Type Description<br />

1 PID I Property identification number<br />

2 SYNTH I Request the calculation of B, K, and M<br />

3 TID1 I TABLEDi entry identification number for<br />

resistance<br />

4 TID2 I TABLEDi entry identification number for<br />

reactance<br />

155

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