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Special low-power induction motors.
Belica, Andrej ; Mach, Martin (referee) ; Hájek, Vítězslav (advisor)
Master thesis deals with design and construction of the most widely used engines currently. Overall, it is divided into five chapters, the first chapter deals with constructional features of various three-phase asynchronous motors, the second chapter briefly paid attention to single-phase motors. The next chapter focuses on the specific engine types, which differ from standard induction motors in its design implementation. This is an engine with full rotor, hysteresis, linear and with shaded field. Although asynchronous motors are considered the most reliable machines work in imperfect conditions, it leads to frequent breakdowns. This is covered in chapter four. Based on the findings from previous chapters the fifth chapter includes a preliminary draft of the asynchronous motor with a full rotor. The last chapter is devoted to the measurement on functional models.
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Special low-power induction motors.
Belica, Andrej ; Mach, Martin (referee) ; Hájek, Vítězslav (advisor)
Master thesis deals with design and construction of the most widely used engines currently. Overall, it is divided into five chapters, the first chapter deals with constructional features of various three-phase asynchronous motors, the second chapter briefly paid attention to single-phase motors. The next chapter focuses on the specific engine types, which differ from standard induction motors in its design implementation. This is an engine with full rotor, hysteresis, linear and with shaded field. Although asynchronous motors are considered the most reliable machines work in imperfect conditions, it leads to frequent breakdowns. This is covered in chapter four. Based on the findings from previous chapters the fifth chapter includes a preliminary draft of the asynchronous motor with a full rotor. The last chapter is devoted to the measurement on functional models.
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Finite element modelling of viscous incompressible fluid flow in glottis
Damašek, Alexandr ; Burda, P.
he paper deals with numericalcomputations of viscous incompressible fluid flow in glottis describedby Navier-Stokes equations and discretized bythe finite element method. Navier-Stokes equations with the nonlinearterm are discretized by semiimplicit integration scheme. Forhigher Reynolds number fluid flow Streamline Upwind Petrov-Galerkin Method - SUPG. This method uses special weight functions which modify shape functions based on the Galerkin principle.
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