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Collection's Items (Sorted by Submit Date in Descending order): 1 to 11 of 11
Juřík, Martin , Kuthan, Jiří , Vlček, Jiří , Mach, František
Positioning uncertainty reduction of magnetically guided actuation on planar surfaces

Key design and operation parameters of the system for magnetically guided actuation of miniature robots on planar surfaces are analyzed and discussed. The study is carried out on the numerical analysis and also on the experimental measurement on the prototype of the system. Special...

Taylor, Stephen , Brychcín, Tomáš
The representation of some phrases in Arabic word semantic vector spaces

Design of electrical machines with low carbon footprint is an actual topic in the industry. Total cost of ownership is the standardized methodology to consider the lifetime costs of a power transformer already in the pre-concept design stage. There still does not exist a widel...

Kroupa, Tomáš , Zemčík, Hana , Zemčík, Robert
Micromechanical analysis of fiber spatial distribution influence in unidirectional composite cross-section on overall response in terms of tensile curves

Accurate temperature control is an important part of an induction brazing process, because of a small difference between melting points of aluminum and soldering material. However, direct measurement of the local temperature at the spot of brazing is not possible in a production li...

Kotlan, Václav , Hamar, Roman , Doležel, Ivo
Induction heating-assisted laser welding of stainless cylindrical pipes

A 3D model of induction-assisted laser welding of stainless cylindrical pipes is presented, incorporating two physical fields: magnetic field and temperature field in the welded pipe that influence one another. The model is solved in quasi-coupled formulation using software COMSOL Multiphysics&#x...

Petrášová, Iveta , Karban, Pavel , Pánek, David , Šroubová, Lenka
Shape and topology optimization of high power converter busbar

The paper is divided into two parts. In the first section the paper deals with shape optimization of high-power converter busbar. The second section is focused on the topology optimization which was applied on the busbar. The main goal of the optimization is to ensure tha...

Pospíšil, Karel , Mach, František
Využití indukovaného napětí pro detekci chyby operace elektromagnetického ventilu

The aim of this article is to describe a method for the sensorless fault detection of the electromagnetic valve operation. This method is based on the measurement of the voltage induced in the valve coil.

Petrášová, Iveta
Optimalizační metody pro lokalizaci zdroje hluku

Optimization methods are used for solving problem in a large number of disciplines. This paper deals with the use of optimization methods for localization the known noise source. The calculation was performed using several optimization methods. The localization of the noise source is&#x...

Pavec, Martin , Soukup, Radek , Hamáček, Aleš
Fraktální anténa vyrobena technologií vyšívání a Aerosol Jet

This paper presents a research focused on development of a flexible fractal antenna for wearable IoT applications or smart textile optimized for Ultra-Wideband communication. A bowtie pattern was chosen as design of the flexible antenna, which is prepared by two technologies: aerosol je...

Kuthan, Jiří , Juřík, Martin
Klíčové parametry pro polohování magnetických těles v planární rovině

Presented research is focused on key design parameters of the system for magnetically guided actuation of miniature robots on planar surfaces. Attention is paid to field coils and robot design, maximum robot load and robot dynamics. The study based on the numerical analysis and...

Slobodník, Karel
Návrh a počítačové modelování pulzně buzených defektoskopických sond na bázi vířivých proudů

In this paper, design and finite element modeling of different types a pulsed eddy current defectoscopy probes is presented. Influence of dimensions of artificial crack in examined body consisted of silver solder on output signal is investigated. Numerical solution was carried&#...

Chudáčik, Vladimír , Smetana, Milan , Karban, Pavel
Formovanie magnetického poľa vo vodivom biomateriály v dôsledku deformácie

In this paper, the impact of plastic deformation of conductive biomaterial on magnetic field formation is described. Austenitic stainless steel specimens after plastic deformation are investigated by non-destructive way under same conditions. Weak magnetic fields are measured using fluxgate sensor.&#x...

Collection's Items (Sorted by Submit Date in Descending order): 1 to 11 of 11