IDENTIFICATION OF THE MODEL OF POINT CURRENT SOURCES FIELD IN THE ORTHOTROPIC CYLINDER

Abstract

In this paper we demonstrated the development of the mathematical models of point current sources field in the cylinder of transversely isotropic composite material with the sources located in the centers of the bases. The main purpose is to determine the electrophysical parameters of the composite material. We obtained an analytical solution (in lines), allowing to find the potentials on the surface of the cylinder with known size and resistivity. To determine the parameters of the effective material resistivity in the radial and axial direction experimentally, the authors propose a method based on the identification of the constructed mathematical model; experimental data were obtained for the identification by testing a cylindrical sample of material reinforced with carbon cloth UT-900. As a result, the specific resistance of orthotropic material in radial and axial directionswas found. Rthe study revealed that the reinforced material conducts current in the direction of the reinforcing fibers better than normal.

Keywords

• problem of electrical conductivity
• conductive composite material
• apparent resistivity
• point current sources field
• methods of identification resistivity