-The paper is devoted to the development of specialized software for simulating the electrodynamic processes in induction motors. This software includes both the graphical interface and the computational modules based on quasi-3D finite element modeling of electrodynamic processes as well as 3D finite element modeling of the magnetic field in order to take into account the end-zones influence on the values of the magnetic fluxes and rotating torque. The numerical data are compared with the experimental data. The results of the simulation of transport vehicle acceleration for different modes are presented. The proposed software allows the engineers to perform the quasi-3D modeling of electrodynamic processes in the induction motor even if they are not experts in numerical methods.

SUMMARYThree-dimensional modeling of magnetotelluric fields using the vector finite element method is carried out. We use the vector differential equation for the single vector-potential and the system of vector-scalar equations for the coupled vector and scalar potentials. We use the edge-based vector basis functions for the vector potential and nodal basis functions for the scalar potential. We use the COCR solver for the solution of the large sparse system of linear equations with Jacobi and folded preconditioner. The CPU and GPU implementations of the developed methods are compared. We test our methods on complex realistic problem of three-dimensional magnetotelluric sounding providing in Russian Far East. The conducted experiments show the advantage of GPU using.

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