cmatrix#
- AnalysisOptions.cmatrix(symfac='', condname='', numcond='', grndkey='', capname='', **kwargs)#
Performs electrostatic field solutions and calculates the self and mutual capacitances between multiple conductors.
Mechanical APDL Command: CMATRIX
- Parameters:
- symfac
str Geometric symmetry factor. Capacitance values are scaled by this factor which represents the fraction of the total device modeled. Defaults to 1.
- condname
str Alpha-numeric prefix identifier used in defining named conductor components.
- numcond
str Total Number of Components. If a ground is modeled, it is to be included as a component. If a ground is not modeled, but infinite elements are used to model the far-field ground, a named component for the far-field ground is not required.
- grndkey
intorstr Ground key:
0- Ground is one of the components, which is not at infinity.1- Ground is at infinity (modeled by infinite elements).
- capname
str Array name for computed capacitance matrix. Defaults to cmatrix.
- symfac
Notes
To invoke the cmatrix macro, the exterior nodes of each conductor must be grouped into individual components using the cm command. Each set of independent components is assigned a component name with a common prefix followed by the conductor number. A conductor system with a ground must also include the ground nodes as a component. The ground component is numbered last in the component name sequence.
A ground capacitance matrix relates charge to a voltage vector. A ground matrix cannot be applied to a circuit modeler. The lumped capacitance matrix is a combination of lumped “arrangements” of voltage differences between conductors. Use the lumped capacitance terms in a circuit modeler to represent capacitances between conductors.
Enclose all name-strings in single quotes in the cmatrix command line.
See the Mechanical APDL Theory Reference for details.
This command does not support multiframe restarts.