Výsledky vyhľadávania
Názov Investigating the pressure distribution on uneven surfaces using an educational robot for development of ergonomic school furniture Aut.údaje Daniel Novák, Viktor Novák ... [et al.] Autor Novák Daniel 1952- (25%) UMBFP07 - Katedra techniky a technológií
Spoluautori Novák Viktor 1982- (25%)
Voštinár Patrik 1988- (25%) UMBFP05 - Katedra informatiky
Volf Jaromír 1954- (25%)
Zdroj.dok. Manufacturing Technology : Journal for Science, Research and Production. Vol. 24, no. 1 (2024), pp. 98-103. - Ústí nad Labem : Univerzita Jana Evangelisty Purkyně v Ústí nad Labem, 2024 Kľúč.slová vyučovací proces - teaching process vzdelávacie techniky roboty - robots senzory - sensors Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Česká republika URL Link na zdrojový dokument Link na plný text Kategória publikačnej činnosti ADM Číslo archívnej kópie 54407 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika 
článok
Názov Computer simulation of heating cycle of aluminum alloys using friction stir welding technology Aut.údaje Petra Kvasnová ... [et al.] Autor Kvasnová Petra 1978- (55%) UMBFP07 - Katedra techniky a technológií
Spoluautori Novák Daniel 1952- (25%) UMBFP07 - Katedra techniky a technológií
Novák Viktor 1982- (15%)
Ďuriš Milan 1954- (5%) UMBFP07 - Katedra techniky a technológií
Zdroj.dok. Manufacturing Technology : Journal for Science, Research and Production. Vol. 23, no. 1 (2023), pp. 47-52. - Ústí nad Labem : Univerzita Jana Evangelisty Purkyně v Ústí nad Labem, 2023 Kľúč.slová zváranie - welding hliník simulácia - simulation Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Česká republika Anotácia The paper deals with welding of aluminum alloys using Friction Stir Welding technology. This represents one of the solid-state welding technologies in which the base materials are not melted. This welding method provides new possibilities for the use of special and hybrid manufacturing technologies. The article first presents an overview and the current progress in the Friction Stir Welding technology. Further, the key attributes of the technology are stated, focusing on the individual weld microstructure zones and their characteristics. Subsequently, a computer simulation of the FSW thermal cycle of an aluminum alloy specimen was designed in the program Ansys; the simulation provides the distribution of the temperature fields within the welded material. The simulated temperature fields are compared with a real weld joint, and possible defects are pointed out. Finally, the results of the computer simulation and of the visual analysis of the real weld joint are summarized and discussed. URL Link na zdrojový dokument Kategória publikačnej činnosti ADM Číslo archívnej kópie 53083 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika článok
Názov Evaluation of electrical resistance of electrodes with conductive ink for agriculture applications using computer technology Aut.údaje Viktor Novák, Jaromír Volf ... [et al.] Autor Novák Viktor 1982- (5%)
Spoluautori Volf Jaromír 1954- (10%)
Novák Daniel 1952- (70%) UMBFP07 - Katedra techniky a technológií
Vrbík Václav (5%)
Ryženko Vladimír (5%)
Stebila Ján 1979- (5%) UMBFP07 - Katedra techniky a technológií
Zdroj.dok. Research in agricultural engineering. Vol. 68, no. 4 (2022), pp. 194-200. - Praha : Česká akademie zemědělských věd, 2022 Kľúč.slová elektródy senzory - sensors pneumatiky Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Česká republika Anotácia The article presents the ongoing research, which aims to select suitable electrodes and mixtures of conductive inks, which will be used as a converter between the pressure and electrical quantities in the design of planar pressure transducers. In the described research, we continue our previous work and the work of other authors who have previous ly dealt with the properties of conductive inks and electrodes. Due to the only partial results in the given field, we decided to perform an extensive and original measurement of a total of 172 combinations of different electrode sizes, various conductive ink mixtures and ink layer thicknesses. Thanks to this, it will be possible, in the future, to select a suitable combination of electrodes and inks when designing pressure sensors for industrial and agricultural applications without the need to perform time-consuming preparatory measurements. The aim of the measurements is also to determine the usable working range of the pressures and the corresponding sensitivity for certain combinations of electrodes and inks, and to also exclude those variants which are unsuitable for the given purposes. This paper presents the introductory part of the measurements, which aims to verify the methodology of the measurements on a test plate at robotised workspace that is connected to a PC in real time via the program LabView. The described introductory measurements proved our methodology to be suitable to the given purpose; however, there minor problems emerged with the actual working pressure range of the transducer and the consequential necessary adjustments of the control program. URL Link na zdrojový dokument Kategória publikačnej činnosti ADM Číslo archívnej kópie 52511 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika článok
Názov Measurement of static forces up to 50 N using piezo ceramics PZK 850 Aut.údaje Jaromír Volf, Viktor Novák ... [et al.] Autor Volf Jaromír 1954- (10%)
Spoluautori Novák Viktor 1982- (5%)
Stebila Ján 1979- (5%) UMBFP07 - Katedra techniky a technológií
Kvasnová Petra 1978- (5%) UMBFP07 - Katedra techniky a technológií
Ryženko Vladimír (5%)
Novák Daniel 1952- (70%) UMBFP07 - Katedra techniky a technológií
Zdroj.dok. Measurement : Journal of the International Measurement Confederation. Vol. 176 (2021), pp. [1-5]. - Oxford : Elsevier Ltd., 2021 Kľúč.slová sila - force merania - measurements Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Veľká Británia Anotácia The article deals with a piezoelectric force sensor, that bases on the use of piezo ceramics PZK 850. These types of sensors were used due to characteristic of the piezo-material (i.e. crystal) particularly for dynamic force measurement only. The developed sensor is suitable to measure static forces up to 50 N; the principle of the measurement of static forces bases on the crystal vibration being damped with the acting static force, whereby corresponding resonance frequencies are determined. The article describes the physical principle of the operation and the technical design of the sensor; there are presented two slightly different variations of the sensor. Further there are stated basic calculations of the sensor parameters and of the corresponding resonance frequencies. Finally, individual force-voltage characteristics are determined and respective results and possible use of such types of sensors are discussed. URL Link na plný text Kategória publikačnej činnosti ADC Číslo archívnej kópie 50202 Kategória ohlasu CASTANO-CANO, Davinson - GROSSARD, Mathieu - HUBERT, Arnaud. Resonant sensors for multi-axis force and torque estimation in collaborative robotics. In Mechatronics. ISSN 0957-4158, 2022, vol. 82, art. no. 102703, pp. 1-14.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika článok
Názov Optimization of vehicles' trajectories by means of interpolation and approximation methods in education in technical fields of study Aut.údaje Ladislav Rudolf ... [et al.] Autor Rudolf Ladislav (25%)
Spoluautori Novák Daniel 1952- (25%) UMBFP07 - Katedra techniky a technológií
Pavlovkin Ján 1955- (25%) UMBFP07 - Katedra techniky a technológií
Novák Viktor 1982- (25%)
Zdroj.dok. Journal of Education, Technology and Computer Science. Roč. 31, č. 1 (2020), s. 36-45. - Rzeszów : Wydawnictwo Uniwersytetu Rzeszowskiego, 2020 Kľúč.slová dopravné prostriedky - means of transportation trajectory optimization interpolation curves approximation curves Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Poľsko Anotácia The need to optimize the trajectory of vehicles is still highly topical, regardless weather the means of transport are robots, forklifts or road vehicles. It is not only important the safety by passing obstacles, but also the energy balance, i.e. the energy expended on the movement of the vehicle and on the change of its direction. This paper presents a mathematical approach to solving this problem through interpolation and approximation curves. This is a very important scope of knowledge for the education of future engineers. Kategória publikačnej činnosti ADE Číslo archívnej kópie 48724 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy (1) - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika článok
Názov Evaluation of foil transducers and their use in tactile sensors Aut.údaje Jaromír Volf, Daniel Novák ... [et al.] Autor Volf Jaromír 1954- (25%)
Spoluautori Novák Daniel 1952- (25%) UMBFP07 - Katedra techniky a technológií
Novák Viktor 1982- (25%)
Papežová Stanislava (25%)
Zdroj.dok. Measurement : Journal of the International Measurement Confederation. Vol. 136, (2019), pp. 573-578. - Oxford : Elsevier Science Ltd., 2019 Kľúč.slová conductive ink tactile sensors pressure distribution Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Veľká Británia Systematika 62 Anotácia The article presents end evaluates foil transducers, namely conductive rubber and conductive ink, and their use in the pressure distribution measurement system Plantograf. The ability of both materials to act as transducer between pressure and electrical quantities is assessed by means of measurement on a robotized workspace; two electrode types and various ink layer thicknesses are studied. Basing on the measurements, we present graphically the dependency of the electrical resistance of the materials on the applied pressure. Although both materials proved their ability to act as a transducer in a planar sensor, they both exhibit some limitations. In case of rubber it is limited pressure range up to ca. 1 400 kPa and significant hysteresis of the material. The main limiting factor with conductive ink is its poor adherence to the electrodes, which poses important problem for its practical use, although this material evinces better transfer characteristics, particularly in the configuration with 7 μm ink layer and LD type electrode. URL Link na plný text Kategória publikačnej činnosti ADC Číslo archívnej kópie 44776 Kategória ohlasu AFRICA, Aaron Don M. - BARRIENTO, Josephine F. - BEA, Anna Mae T. - DELOSREYES, Chris Vincent F. - MALLARI, Maveric P. Development of an alternative source of power in an octopus ride using kinetic energy. In ARPN : journal of engineering and applied sciences. ISSN 1819-6608, 2019, vol. 14, no. 22, pp. 3804-3814.
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nerozpoznaný
Názov Plantograf V18 - new construction and properties Aut.údaje Petr Koder ... [et al.] Autor Koder Petr (15%)
Spoluautori Novák Viktor 1982- (20%)
Ryzhenko Volodymyr (15%)
Hrubý Dušan (15%)
Volf Jaromír 1954- (20%)
Novák Daniel 1952- (15%) UMBFP07 - Katedra techniky a technológií
Zdroj.dok. Agronomy Research. Vol. 16, special no. 1 (2018), pp. 1085-1094. - Tartu : Estonian University of Life Sciences, 2018 Kľúč.slová transducer pressure sensors Jazyk dok. angličtina Krajina Estónsko Systematika 62 Anotácia Článok opisuje plošný prevodník tlaku Plantograf V18. Tento prístroj prevádza vyvinutý tlak na podložku na elektrický signál a umožňuje následnú grafickú prezentáciu nameraných dát. Nová verzia V18 tohto prevodníku prichádza s významnými zlepšeniami a modifikáciami, ktoré sú podrobnejšie diskutované v článku. Prístroj má praktické využitie vo všetkých oblastiach, kde je potrebné určiť plošné rozloženie tlaku medzi objektom a podložkou, napr. v medicíne alebo v automobilovom priemysle. Článok podrobne opisuje elektronický ovládací systém prevodníku, a ďalej zatiaľ nepublikované merania s 3,5 mm elektródami. The article describes Plantograf V18, a planar tactile transducer, which converts the applied pressure into electric signal and enables a graphical presentation of the measured data; the new version V18 comes with some significant improvements and modifications. The device may be used everywhere where the pressure distribution between an object and surface is to be determined, e.g. in medicine or automotive industry. The article contains the detailed description of the transducer design and its electronic control circuits, as well as the yet unpublished measurements of pressure sensitivity with 3.5 mm electrodes URL Link na zdrojový dokument Link na plný text Kategória publikačnej činnosti ADM Číslo archívnej kópie 42941 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika nerozpoznaný
Názov Hardness tests and dimensional and shape precision analysis of construction and agricultural machinery components Aut.údaje Petra Kvasnová ... [et al.] Autor Kvasnová Petra 1978- (25%) UMBFP07 - Katedra techniky a technológií
Spoluautori Kučerka Martin 1980- (25%) UMBFP07 - Katedra techniky a technológií
Hrubý Dušan (20%)
Novák Daniel 1952- (20%) UMBFP07 - Katedra techniky a technológií
Novák Viktor 1982- (10%)
Zdroj.dok. Manufacturing Technology : Journal for Science, Research and Production. Vol. 18, no. 6 (2018), pp. 943-949. - Ústí nad Labem : Univerzita Jana Evangelisty Purkyně v Ústí nad Labem, 2018 Kľúč.slová tvrdosť oceľ inžinierstvo poľnohospodárske stroje - agricultural machines Jazyk dok. angličtina Krajina Česká republika Systematika 620.1/.2 Kategória publikačnej činnosti ADM Číslo archívnej kópie 44036 Kategória ohlasu VAŠKO, Alan - SOVÍK, Ján - SEDLIAČKOVÁ, Zuzana. Accuracy of portable hardness testers. In Manufacturing technology. ISSN 1213-2489, 2019, vol. 19, no. 5, pp. 886-890.
SULTANA, Jakiya - SZTANKOVICS, István. Roundness error and topography of hard turned surfaces. In Cutting and tools in technological system. ISSN 2078-7405, 2023, no. 98, pp. 83-92.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika nerozpoznaný
Názov Verification of mathematical model of pressure distribution in artificial knee joint Aut.údaje Viktor Novák ... [et al.] Autor Novák Viktor 1982- (25%)
Spoluautori Novák Daniel 1952- (25%) UMBFP07 - Katedra techniky a technológií
Volf Jaromír 1954- (25%)
Ryzhenko Volodymyr (25%)
Zdroj.dok. Agronomy Research. Vol. 15, no. 4 (2017), pp. 1716-1724. - Tartu : Estonian University of Life Sciences, 2017 Kľúč.slová knee arthroplasty pressure distribution tibial plateau Jazyk dok. angličtina Krajina Estónsko Systematika 62 URL Link na zdrojový dokument Kategória publikačnej činnosti ADM Číslo archívnej kópie 41511 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika nerozpoznaný
Názov Measurement of weld joint parameters and their mathematical modelling Aut.údaje D. Novák ... [et al.] Autor Novák Daniel 1952- (25%) UMBFP07 - Katedra techniky a technológií
Spoluautori Kvasnová Petra 1978- (25%) UMBFP07 - Katedra techniky a technológií
Volf Jaromír 1954- (25%)
Novák Viktor 1982- (25%)
Zdroj.dok. Agronomy Research. Vol. 15, special no. 1 (2017), pp. 1127-1140. - Tartu : Estonian University of Life Sciences, 2017 Kľúč.slová steel matematické modelovanie - mathematical modeling - mathematical modelling Jazyk dok. angličtina Krajina Lotyšsko Systematika 53 Anotácia © 2017, Eesti Pollumajandusulikool. All rights reserved. The article deals with verifying of weld quality of weld joints created by laser beam welding technology, primarily in agricultural components such as reel screws. We presents both metallographic check of the weld structure using electron microscopy, RTG-microanalysis and micro hardness measurement as well as used mathematical models of the welding process and respective weld joints geometry. First the laser beam welding technology and concerned agricultural components are introduced. Further we specify individual steel types as well as laser types and we define specific welding parameters used in our measurements. We selected several samples of weld joints, which are further examined them in detail using optical microscopy, micro hardness measurements and RTG microanalysis. We further determined the weld shape, measured dimensions of individual weld joints as well as we checked the weld joints structure. We further introduced a mathematical model based on the program ANSYS. The model can simulate temperatures, speed field and tensions within the weld joint, basing on known thermal conductivity of the base material and specified welding conditions. Using the model, we can predict the shape of the weld and the temperatures within the material. Finally, individual welding parameters and obtained weld joint samples are briefly discussed and the applicability of the model is evaluated. Kategória publikačnej činnosti ADM Číslo archívnej kópie 40179 Kategória ohlasu OČKAJOVÁ, Alena - KUČERKA, Martin - KMINIAK, Richard - KRIŠŤÁK, Ľuboš - IGAZ, Rastislav - RÉH, Roman. Occupational exposure to dust produced when milling thermally modified wood. In International journal of environmental research and public health. ISSN 1661-7827, 2020, vol. 17, no. 5, pp. 1-14.
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