Card 9 - XCAP Capacitances

This optional card specifies the parameters and options for defining capacitances for elements.

Parameters: KODE, N1, T1, T2, T3

KODE

KODE is the code XCAP (or 2)

N1

N1 is an element number, or a group name.

T1

T1 is an element number or 0. T1 = 0 defaults to T1 = N1. If N1 is a group name, T1 must be 0.

T2

T2 is the capacitance value of the elements N1 through T1 or of group N1.

T3

T3 may be:

  • T3 = AREA (or 1.E36): The capacitance generated will be equal to T2 * area of the element.
  • T3 = LENGTH (or 4.E36): The capacitance generated will be equal to T2 * length of the beam element.
  • T3 = VOLUME (or 3.E36): The capacitance generated will be equal to T2 * volume of the element.
  • Blank: The capacitance is specified directly by T2.

Code example


XCAP 3 5 3
$ ELEMENTS 3,4, AND 5 HAVE CAPACITANCES OF 3.0

Notes

This card specifies capacitances for elements N1 through T1. Alternatively, capacitances may be calculated from geometry by specifying non-zero specific heats and densities on MAT Cards for Card 5a elements.

Capacitances calculated from geometry are summed with those specified on XCAP Cards by the MEREL module.