ORIGINAL_ARTICLESkySpotter 150 is an unmanned helicopter introduced recently by Modelárna LIAZ. The gearbox test rig developed for this helicopter has an innovative design. The drive is combined with a dynamometer and an axial force mechanism, which simulates the load from the main rotor on the gearbox output shaft. It leads to a special solution. The measurement methodology was developed including all sensors and design of the rig with a non-traditionally oriented dynamometer. The design has safety features that protect the test rig components and operator. The test rig is used for many tests during the development and improvement of the new helicopter generation. It also serves for verifying the gearbox parameters during its lifetime; it means tests of new gearboxes as well as technical diagnostic during periodical inspections.https://acc-ern.tul.cz/archiv/PDF/ACC_2022_1_01.pdf2022-06-3071310.15240/tul/004/2022-1-001Angular gearboxTest rigVibrationsMeasurementJanBělíkjan.belik@vuts.cz1VÚTS, a.s., Measurement DepartmentAUTHORLIAZ: SkySpotter 150 UAV system. [online]. Available from WWW: https://www.liaz-uav.com1LENZE SELECTION: Zubové spojky – mechanické. [online]. [accessed 2022-02-25]. Available from WWW: https://www.lenze-selection.com/cs-cz/vyrobky/spojky-hridelove-prirubove-spojky/zubove-spojky/2

ORIGINAL_ARTICLEAs part of the module “Introduction of Collaborative Robot Systems” at the Zittau/Görlitz University of Applied Sciences, a practical robot application using a collaborative robot and the associated human-robot interaction must be examined in a written document. The objective of the document is to design an application for sorting screws in such a way that the motion sequences of the robot are optimized. Safety aspects are to be considered. Subsequently, the concept is to be implemented theoretically and/or practically. The work carried out and the results are to be recorded in a document. In this article, the results of the proof of a student group are presented. Thereby, the article shall give an overview on the possible procedure for the conceptual design of practical robot applications.https://acc-ern.tul.cz/archiv/PDF/ACC_2022_1_02.pdf2022-06-30142910.15240/tul/004/2022-1-002Human-robot interactionCollaborative robotsRobot applicationSortingScrewingTeachingHamid CastilloMartinezhamid_omar.castillo_martinez@stud.hszg.de1Zittau/Görlitz University of Applied Science, Faculty of Electrical Engineering and Informatics, Institute of Process Technology, Process Automation and Measurement TechnologyAUTHOREmiliano LaraRomeroemiliano.lara_romero@stud.hszg.de2Zittau/Görlitz University of Applied Science, Faculty of Electrical Engineering and Informatics, Institute of Process Technology, Process Automation and Measurement TechnologyAUTHORRicardo UgaldeTinocoricardo.ugalde_tinoco@stud.hszg.de3Zittau/Görlitz University of Applied Science, Faculty of Electrical Engineering and Informatics, Institute of Process Technology, Process Automation and Measurement TechnologyAUTHORChristianVogelc.vogel@hszg.de4Zittau/Görlitz University of Applied Science, Faculty of Electrical Engineering and Informatics, Institute of Process Technology, Process Automation and Measurement TechnologyAUTHORSCHLEICHER, T.: Kollaborierende Roboter anweisen – Gestaltungsempfehlungen für ergonomische Mensch-Roboter-Schnittstellen. Springer, Leipzig, 2020. ISBN 978-3-658-29050-4. eBook ISBN 978-3-658-29051-1.110.1007/978-3-658-29051-1BAUER, W.; BENDER, M; BRAUN, M.; RALLY, P.; SCHOLTZ, O.: Roboter ohne Schutzzaun in der Montage: Stand der Anwendung in deutschen Montagen. wt Werkstattstechnik online. 2016.210.37544/1436-4980-2016-09-42ASSOCIATION FOR ADVANCING AUTOMATION: Universal Robots A/S. [online]. 2012. [accessed 2021-06-15]. Available from WWW: https://www.automate.org/companies/universal-robots-a-s3SAMSYS GmbH: Universal Robots e-Serie. [online]. 2019. [accessed 2021-06-15]. Available from WWW: https://www.samsys.eu/product/universal_robots/4CLEARPATH: UR5. [online]. 2021. [accessed 2021-06-15]. Available from WWW: https://store.clearpathrobotics.com/products/universal-robots-ur55ROBOTIQ: 2F-85 and 2F-140 Grippers. [online]. 2021. [accessed 2021-06-15]. Available from WWW: https://robotiq.com/products/2f85-140-adaptive-robot-gripper6ROBOTIQ: Wrist Camera. [online]. 2021. [accessed 2021-06-15]. Available from WWW: https://robotiq.com/products/wrist-camera7ORACLE: Virtual Box. [online]. 2021. [accessed 2021-06-17]. Available from WWW: https://www.virtualbox.org8ORACLE: Virtual Box: Chapter 1.6. Starting Oracle VM VirtualBox. [online]. 2021. [accessed 2021-06-17]. Available from WWW: https://www.virtualbox.org/manual/UserManual.html#intro-starting9CAPITOL TECHNOLOGY UNIVERSITY: What is SOLIDWORKS? [online]. 2019. [accessed 2021-06-18]. Available from WWW: https://www.captechu.edu/blog/solidworks-mechatronics-design-and-engineering-program10AMES, J.: User Interface Basics in SOLIDWORKS. [online]. USA, California, Hawk Ridge Systems, 2019. [accessed 2021-06-18]. Available from WWW: https://hawkridgesys.com/blog/user-interface-basics-in-solidworks11WONDERSHARE EDRAW MAX: What is a Flowchart: A Complete Guide. [online]. 2021. [accessed 2021-06-19]. Available from WWW: https://www.edrawmax.com/flowchart/12KANDWAL, N.: Flowchart. [online]. 2021. [accessed 2021-06-19]. Available from WWW: http://naveenkandwal.blogspot.com/2014/01/flowchart_18.html13GESTIÓN DE COMPRAS: Screws. [online]. 2021. [accessed 2021-06-19]. Available from WWW: https://www.gestiondecompras.com/files/products/mechanical_components_hardware/pernos_tornilleria_tuercas_arandelas_varilla_roscada_din_933_934_7989_125_127_4034_975_555_iso.pdf14UGALDE, R.: Screw Sorting Application. [accessed 2021-06-11]. Available from WWW: https://www.youtube.com/watch?v=ep2sLfHYcn4&ab_channel=RicardoUgalde15

ORIGINAL_ARTICLEIn this article, a computational model is presented which can be used to predict the heating of insulating material surfaces by low-current high-voltage arcs. The discharge is represented by a so-called three-cylinder model. Based on this, the heat flows onto the insulating material surface and its heating by means of thermal conduction and convection are calculated. The calculation results are compared to the measurements of the surface temperature on a model arrangement. The overall model reproduces the dynamic behavior of the heating very well. The quantitative deviations from the measurement are only in the range of a few percent.https://acc-ern.tul.cz/archiv/PDF/ACC_2022_1_03.pdf2022-06-30304510.15240/tul/004/2022-1-003Low current high voltage arcingModelingHeating of insulating material surfacesElectrical polymer insulating materialsArc resistanceDanielFißd.fiss@hszg.de1Hochschule Zittau/Görlitz, University of Applied Science, Institute of Process Technology, Process Automation and Measurement Technology (IPM) Department Measuring Technology / Process AutomationAUTHORErnestKrzyszkowskiernestkk1996@gmail.com2Hochschule Zittau/Görlitz, University of Applied Science, Institute of Process Technology, Process Automation and Measurement Technology (IPM) Department Measuring Technology / Process AutomationAUTHORStefanKühnel2s.kuehnel@hszg.de3Hochschule Zittau/Görlitz, University of Applied Science, Faculty of Electrical Engineering and Informatics Department for High-Voltage Engineering / Materials / Electromagnetic TheoryAUTHORStefanKornhubers.kornhuber@hszg.de4Hochschule Zittau/Görlitz, University of Applied Science, Faculty of Electrical Engineering and Informatics Department for High-Voltage Engineering / Materials / Electromagnetic TheoryAUTHORPAPAILIOU, K. O.; SCHMUCK F.: Silikon-Verbundisolatoren – Werkstoffe, Dimensionierung, Anwendungen. Springer Verlag, Berlin, 2011. ISBN 978-3642238130.1IEC TR 62039 – Selection guide for polymeric materials for outdoor use under HV stress. 2007.2IEC 60587:2007 – Electrical insulating materials used under severe ambient conditions - Test methods for evaluating resistance to tracking and erosion. 2007.3IEC 61621 – Dry, solid insulating materials – Resistance test to high-voltage, low-current arc discharges. 1997.4CIGRÉ WORKING GROUP D1.27: Feasibility Study for a DC Tracking and Erosion Test. Technical brochure 611. 2015.5KUEHNEL, S.; KORNHUBER, S.; LAMBRECHT, J.: On the Electrical Characteristic and Heat Dissipation of High Voltage Surface Arcs. IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP). Cancun, Mexico, 2018.610.1109/CEIDP.2018.8544746CERVINKA, R.; BÄRSCH, R.; SEIFERT, J.: Einfluss der Prüfspannungsart auf das Oberflächenverhalten von polymeren Isolierstoffen unter elektrolytischen Fremdschichtbelastungen. ETG-Fachbericht. Vol. 125, pp. 69–75. VDE-Verlag Berlin-Offenbach, 2010.7MENZEL, W.: Zur Klimabeständigkeit von Kunststoff-Innenraumisolierungen mit Oberflächenbeschichtungen. Dissertation, Technische Hochschule Zittau, 1989.8EL-HAG, A.; MEYER, L. H.; NADERIAN, A.: Experience with Salt-Fog and Inclined-Plane Tests for Aging Polymeric Insulators and Materials. IEEE Electrical Insulation Magazine. 2010, Vol. 26, Issue 2, pp. 42–50.910.1109/MEI.2010.5482554ZHANG, X.; ROWLAND, S. M.: Modelling of dry-band discharge events on insulation surfaces. IEEE International Symposium on Electrical Insulation. San Diego, CA, USA, 2010.1010.1109/ELINSL.2010.5549489KIM, S.-H.; HACKAM, R.: Temperature distribution in RTV silicone rubber coating following band arcing. Proceedings of 1994 IEEE International Symposium on Electrical Insulation. Pittsburgh, PA, USA, 1994.1110.1109/ELINSL.1994.401383BORKOWSKI, P.; WALCZUK, E.: Thermal Models of Short Arc between High Current Contacts. Proceedings of the Forth-Seventh IEEE Holm Conference on Electrical Contacts (IEEE Cat. No.01CH37192). Montreal, QC, Canada, 2001.1210.1109/HOLM.2001.953220KAHLERT, J.: Simulation technischer Systeme. Friedr. Vieweg & Sohn Verlag / GWV Fachverlage GmbH, Wiesbaden, 2004. ISBN 978-3-322-80248-4. eBook ISBN 978-3-322-80247-7.1310.1007/978-3-322-80247-7VDI e. V.: VDI-Wärmeatlas. Springer Vieweg Berlin, Heidelberg, 2013. Series ISSN 2512-5281. Series E-ISSN 2512-529X.1410.1007/978-3-642-19981-3

ORIGINAL_ARTICLEThe electronic air damper is a system used for automated control of air distribution in fireplaces without human intervention. It is designed to meet specified criteria, such as primary and secondary air distribution, environmental friendliness (design of environment), and easy replacement and services of functional parts (design of service). Conventional fireplace stoves can be regulated with primary and secondary air, which are controlled manually or in combination with an automatic damper. The average user is not able to tune the ratio of primary and secondary air in the ratio that has been tested in an official testing laboratory. Moreover, the average user is usually not even familiar with the terms secondary and primary air. It is necessary to innovate the air control system.https://acc-ern.tul.cz/archiv/PDF/ACC_2022_1_04.pdf2022-06-30465510.15240/tul/004/2022-1-004Fireplace stoveCombustion chamberThrottle valveAir dumperAutomatizationJosefHykljosef.hykl@tul.cz1Technical University of Liberec, Faculty of Mechanical Engineering, Department of the Design of Machine Elements and MechanismsAUTHORSORNEK, K.; FILIPOWICZ, M.; RZEPKA, K.: The development of a thermoelectric power generator dedicated to stove-fireplaces with heat accumulation systems. Energy Conversion and Management. 2016, Vol. 125, pp. 185–193.110.1016/j.enconman.2016.05.091GROSS, P. L.; BUCHANAN, N.; SANÉ, S.: Blue skies in the making: Air quality action plans and urban imaginaries in London, Hong Kong, and San Francisco. Energy Research & Social Science. 2019, Vol. 48, pp. 85–95.210.1016/j.erss.2018.09.019