COMPEL - The international journal for computation and mathematics in electrical and electronic engineering: Volume 18 Issue 2

The role of the potentials in electromagnetism

Percy Hammond

There are two conflicting views about electromagnetic phenomena. The first is based on the action between stationary and moving particles of electric charge and the second on…

Finite element analysis of the dynamics of a high bandwidth actuator for a hard disk drive

Qinghua Li, Siri Weerasooriya, Teck‐Seng Low

In this paper a prototype actuator designed for a high bandwidth servo system is modeled and analyzed using finite elements. Natural frequencies and mode shapes of frequencies…

Estimating unique solutions of DC transistor circuits

J. Cel

For each natural n let Fⁿ denote the collection of mappings of Rⁿ onto itself defined by: F ∈Fⁿ if and only if there exist n strictly monotone increasing functions f_k mapping R…

Quasi‐variational inequality and shape optimization for solution of a free boundary problem

J. Abouchabaka, R. Aboulaïch, A. Nachaoui, A. Souissi

Electrical potentials in a junction field transistor can be calculated using a simplified model based on a complete depletion assumption. This gives rise to a free boundary…

Application of modified FBT algorithm in induction motor series optimal design

Meng Dawei, Wen Jiabin, Lu Yongping

Some improvements are made for Fast Boundary Tracking algorithm according to the practice of the electric machine design in the paper. As discrete variables play a dominant role…

A quasi‐variational inequality for the simulation of a MODFET transistor

François Lefèvre, Nabil Nassif

We introduce the drift‐diffusion model with appropriate jump conditions at the junction of the MODFET transistor (AlGaAs/GaAs). We propose a quasi‐variational inequality (QVI…

Modelling and computer simulation study of laser‐plasma interaction in semiconductor

K. Rajendran

Computer simulations were done extensively in order to study non‐linear dynamics of laser‐plasma interaction in InSb semiconductor. We constructed the modified Duffing kind of…

Selected ideas of the theory of non‐linear electrical circuits

Miroslaw Dabrowski

In this paper an outline of the development of methods for the analysis of non‐linear circuits is presented. Non‐inert and inert elements have been discerned and an inertia…

Highly non‐linear field diffusion in HTC superconducting tapes

J.K. Sykulski, M. Rotaru, R.L. Stoll

The paper presents an extension to previous work on modelling AC losses in high‐temperature superconducting tapes as a highly non‐linear diffusion process. Following successful…