Konferenční příspěvky / Conference papers (RICE) Collection home page

Browse
Subscribe to this collection to receive daily e-mail notification of new additions RSS Feed RSS Feed RSS Feed
Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 27
Skřivan, Vojtěch , Sodomka, Ondřej , Mach, František
Magnetically guided soft robotic grippers

Soft robotic grippers based on magnetorheological elastomers are proposed. Rigid nonmagnetic skeleton of the gripper is encased by an elastomer with magnetic properties that exhibits soft-touch properties and reacts to external magnetic field. The basic concept of the grippers, their operation&#x...

Gevorkov, Levon , Šmídl, Václav , Sirový, Martin , Rassõlkin, Anton , Kallaste, Ants , Vaimann, Toomas
Model for torque estimation of pump system with horizontal pipe network

This paper investigates the possibility of torque estimation of Centrifugal Pump System (CPS) with horizontal pipe network topology. It illustrates the concept of a model-based scheme for hydraulic system simulation. The simulation model developed for CPS takes into consideration the hydraulic&#x...

Štork, Milan , Novák, Jaroslav , Zeman, Vaclav
Models of physiological parameters for runners and cyclists

The study of physiological parameters dynamic is currently the main area of research in exercise physiology. The most common physiological data to collect include heart rate, oxygen saturation, core body and skin temperature, blood pressure, ECG, oxygen consumption and others. The data ...

Balliou, Angelika , Pfleger, Jiří , Skoulatakis, George , Kazim, Samrana , Rakušan, Jan , Kennou, Stella , Glezos, Nikos
Programmable molecular-nanoparticle multi-junction networks for logic operations

We propose and investigate a nanoscale multi-junction network architecture that can be configured on-flight to perform Boolean logic functions at room temperature. The device exploits the electronic properties of randomly deposited molecule-interconnected metal nanoparticles, which act collectively as stro...

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...

Lovecký, Martin , Závorka, Jiří , Vimpel, Jan
VVER-1000 fuel assembly model in CAD-based unstructured mesh for MCNP6

Geometry models for Monte Carlo transport codes have been using standard constructive solid geometry (CSG). The standard approach is using analytical equations for defining surfaces from which spatial cells are constructed. Both union and intersection operators are available, therefore, arbitrary ...

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...

Bouzek, Stanislav , Tureček, Oldřich
Possibilities of verifying the parameters of the absorbing elements using the loudspeaker

This paper deals with other option of determination of the acoustic absorbing materials parameters. Simplified procedures are often used to design new absorbing elements. These procedures are based on an ideal model or previous experience. The result is often quite inaccurate. To verify...

Zuzjak, Ladislav , Tureček, Oldřich
Advanced method for measurement of parameters of multi-channel sound systems

Multi-channel sound systems are very often used in many areas. One of the significant areas is playback of music in the entertainment industry. A specific area is high-quality car sound system. At present, the sound systems in the automotive are realized using multi-channel loudspe...

Bělík, Milan
Automated data acquisition for electrical power engineering

This article describes evaluation and application of low cost data acquisition device for selected tasks in electrical power engineering. The first part discusses theoretical and technical limits of NI PCI-6221 DAQ. Following chapter inscribes application for current / voltage measurement an...

Lovecký, Martin , Závorka, Jiří , Jiřičková, Jana , Škoda, Radek
Burnable absorber layer in HTR coated particles for OTTO fuel cycle

High temperature reactor is loaded by fuel pebbles that slowly flow through the reactor core. Reactor operation is described by a continuous on-power refueling with two possible fuel cycles. Multi-pass scheme allows lower peak power density. Moreover, multiple passing through the core s...

Závorka, Jiří , Lovecký, Martin , Škoda, Radek
Fuel pebble optimization

The pebble bed reactor is randomly filled with thousands of spheres with fuel and moderator elements known as pebbles. Each fuel pebble contains thousands of coated TRISO particles stochastically embedded in the graphite matrix. Compared to PWR reactors with a regular lattice of fu...

Hruška, Karel , Laksar, Jan , Šobra, Jan
The determination of iron core loss characteristics of special electrical steel types

The paper compares characteristics of three steel types - one standardized in EN 10106 (M235-35A) and two special steel alloys - Arnon5 and Hiperco 50. The iron core loss characteristics are derived to describe the dependence of loss number on magnetic flux density and frequen...

Laksar, Jan , Veg, Lukáš
Reduced Schwarz-Christoffel conformal mapping in surface-mounted PMSM

Schwarz-Christoffel conformal mapping method is widely used in modeling of air gap flux density distribution of electrical machines. It should not be as time consuming as definition and calculation of the finite element model but provides results with high accuracy. Also the improved&#x...

Kotlan, Václav , Karban, Pavel , Doležel, Ivo
Induction clamping of high-revolution tools by rotation in a system of unmovable permanent magnets

An alternative way of induction clamping is described, consisting in heating of the sleeve by its rotation in static magnetic field generated by suitably arranged permanent magnets. The most important dimensions of the heating system are optimised with the aim to reach the required...

Čermák, Radek , Pechánek, Roman
Thermal study of permanent magnet direct drive wheel motor

This work deals with thermal design of permanent magnet synchronous motor (PMSM). The designed motor is the in-wheel traction motor for automotive. The motor consist of an external rotor and inner stator with water cooling system. The thermal calculation is based on the simplified&...

Veg, Lukáš , Laksar, Jan
Thermal model of high-speed synchronous motor created in MATLAB for fast temperature check

This article is focused on computational modeling of the temperature increase of the high-speed permanent magnet motor. The main aim is to create the calculation program. The program is based on parametric motor model. The methodology of calculation is the Lumped Parameter Thermal ...

Talla, Jakub , Košan, Tomáš , Blahník, Vojtěch
FOC - based speed control algorithms of induction motor drive with system parameter mismatch

The field oriented control algorithms (FOC) of induction motor (IM) drives are generally sensitive to model parameter mismatch. Especially, the proper flux orientation and flux amplitude is influenced by the rotor/stator resistance values. Moreover, the rotor and stator resistances are tempe...

Frank, Zdeněk , Hruška, Karel
Design, construction and measurement of an educational synchronous machinery

The paper deals with a complete manufacture of a synchronous machinery for educational purposes. The main target of the design is creation of a machinery which clearly shows all constructional components of used machines, its overall dimensions allow easy transportation between education...

Janouš, Štěpán , Talla, Jakub , Šmídl, Václav , Peroutka, Zdeněk
Model predictive control of dual induction motor single inverter drive

Dual induction motor single inverter drives reduce installation space, weight and overall cost. On the other hand, complexity of the control increases significantly, since the condi­tion on each electric machine can vary in a wide range. Today, majority of control algorithms uses cascad...

Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 27