Transient analysis of ring shaped grounding electrode using isoparametric quadratic elements

摘要

The paper deals with transient analysis of ring shaped grounding electrodes using isoperametric quadratic elements. The formulation in the frequency domain is based on the thin wire antenna theory and the related Pocklington integro-differential equation while the corresponding transient response is obtained by means of the Inverse Fourier Transform (IFT). The Pocklington integro-differential equation is solved by the Galerkin-Bubnov Indirect Boundary Element Method (GB-IBEM) featuring the use of isoparametric quadratic elements for the current distribution approximation.