Article,
Distributed parameter model for computing energy dissipation in brush-type electrostatic discharges
Journal of Electrostatics, 63 (3-4): 239--247 (March 2005)
DOI: http://dx.doi.org/10.1016/j.elstat.2004.09.005
Abstract
A distributed parameter model has been developed for estimating energy
dissipation and charge transfer in electrostatic discharges from
thin insulating sheets backed by a ground plane. The sheets are represented
as an array of discretized elements; each assigned a capacitance
and an initial surface charge. Simulations were performed by means
of an equivalent two-dimensional network of resistors, capacitors,
and spark gaps. Time evolution of the system was determined by ordinary
circuit equations and the physics governing the breakdown of air
in the gaps. The model also generates "simulated Lichtenberg figures",
providing insight into the mechanism governing the complex breakdown
patterns that form across insulating surfaces when these discharges
occur. Experiments to assess the validity of the model are discussed.
Simulation results provided by the model were found to be in good
agreement with those obtained experimentally.
