Electrostatic Field Strength and Voltage

In an Electrostatic Field Strength and Voltage Analysis, the output consists of voltage at nodes and electric and displacement fields (vectors) at element centroids.

The following table summarizes this analysis type:

Electrostatic Field Strength and Voltage

Analysis Electrostatic field analysis
Variables Potential (V)

Input:

Constants Permittivity constant
Constraints Potential (V) at boundaries
Nodal loads Point charges
Element loads Charge density

Output:

Nodal Potential (V)
Element centroid Electrical and displacement fields (Vectors)

The software calculates the permittivity constant (permittivity of free space, or permittivity in a vacuum). It uses a default value of 8.85419E-12 (ampere*sec)/(V*m), converted to the units set in the model. This value can be checked in the summary file. Keep in mind that 1 coulomb equals 1 ampere*second.