Papers by Keyword: Distributed Parameter System

Abstract: Nowadays, the achievement of proper steel billets temperature profile is not the only design priority of induction heaters for hot forming applications. Due to its high operating costs, its design is constantly improving in terms of electrical and thermal efficiency. Therefore the more efficient multi-coil design starts to be more used in industrial practice. Numerical model of mentioned heater based on partial differential equations were solved by finite element method in virtual software environment. Primary goal of computer modeling was to investigate the thermal dynamics of four-module heater working in steady-state operation regime. Obtained data were applied to design an advanced control circuit based on distributed parameter systems theory. This may open up the opportunity to make further progress in induction heaters design.

Abstract: This paper discusses a distributed system modeling of the electrical impedance of ionic polymer-metal composites from the point of view of the electrode roughness. A diffusion-like equation is derived from the distributed circuit model which represents the fractal-like distribution of the polymer-electrode interface. The port-Hamiltonian representation of the system is also shown. In the experiment, the frequency response of the impedance is measured under various conditions.