Numerical simulation of electrical engineering devices

Abstract

Purpose -The paper seeks to present a methodology of computer simulation of coupled magneto-thermo-mechanical processes in various electrical engineering devices. The methodology allows determining their parameters, characteristics and behaviour in various operation regimes. Design/methodology/approach -The mathematical model consisting of three equations describing magnetic field, temperature field and field of mechanical strains and stresses (or thermoelastic displacements) is solved numerically, partially in the hard-coupled formulation. Findings -The methodology seems to be sufficiently robust, reliable and applicable to a wide spectrum of devices. Research limitations/implications -At this stage of research, the hard-coupled formulation of thermo-mechanical (or thermoelastic) problems is still possible only in 2D. Practical implications -The methodology can successfully be used for design of numerous machines, apparatus and devices from the area of low-frequency electrical engineering ranging from small actuators to large synchronous generators. Originality/value -Complete numerical analysis of coupled magneto-thermo-mechanical phenomena in electrical devices.

Development of improved performance electromagnetic valve for liquid rocket engine

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Time-Stepping FEM-Based Multi-Level Coupling of Magnetic Field–Electric Circuit and Mechanical Structural Deformation Models Dedicated to the Analysis of Electromagnetic Actuators

“…Evaluation of the magnetic force density effects in low magnetic fields is not overly complicated, and the existing techniques (i.e., Virtual Work, Maxwell Stress Tensor, or magnetic equivalent charges, etc.) implemented in available professional codes provide results with sufficient accuracy [13][14][15][16][17]. The problem of an electrically conducting object placed in a transient magnetic field is well known.…”