ORIGINAL_ARTICLEThere is a global call to determine the state of the inventory of transport and storage containers for high radioactive waste (spent fuel assemblies). One possible solution is to perform vibration analyses and evaluate vibration responses by using artificial neural networks. For this approach, first investigations have been carried out. Vibration data are obtained from a testing setup modelling the nuclear storage fuel assemblies which is converted to the frequency domain via the Fourier transform. Raw spectral data are first prepared by normalization, data augmentation and limiting the frequency range. These measures are proven to have significant impact on the overall performance of the training of the neural networks. Using fully connected and convolutional neural networks, classification and regression is performed on the spectral data. Classification is shown to be possible with very high accuracy; and regression has decent results with options for improvement in later stages. Convolutional neural networks are shown to be superior in both cases.https://acc-ern.tul.cz/archiv/PDF/ACC_2020_1_02.pdf2020-06-30193010.15240/tul/004/2020-1-002Neural networksSpectral dataNuclear waste monitoringVibration analysisTheoDedekentheo.dedeken@telenet.be1Ghent University, Faculty of SciencesAUTHORFISS, D.; SCHMIDT, S.; REINICKE, S.; KRATZSCH, A.: Fundamental R&D Work on Methods for State Monitoring of Transport and Storage Containers for Spent Fuel and Heat-Generating High-Level Radioactive Waste on Prolonged Intermediate Storage. In: 25th International Conference on Nuclear Engineering. Paper No: ICONE25-67245, V009T15A039. ASME, 2017. ISBN 978-0-7918-5787-8. 110.1115/ICONE25-67245BJERRUM, E. J.; GLAHDER, M.; SKOV, T.: Data Augmentation of Spectral Data for Convolutional Neural Network (CNN) Based Deep Chemometrics. In: ArXiv. [online]. 2017. Available from WWW: http://arxiv.org/abs/1710.019272CHOLLET, F. et al.: Keras. [online]. 2015. Available from WWW: https://keras.io3ABADI M. et al.: TensorFlow: Large-Scale Machine Learning on Heterogeneous Distributed Systems. Preliminary White Paper. In: ArXiv Vanity. [online]. 2015. Available from WWW: https://www.arxiv-vanity.com/papers/1603.04467/4

ORIGINAL_ARTICLEThis project is an attempt to get expert knowledge of VR technology and have a clear perception of the Linator as an example. The main purposes are helping to gain knowledge of this engine, concepts and mechanism, how its animation works and identify each part (geometries and tasks) by using VR- headset. The idea of this project is to find the way to fully understand this machine and to link the theoretical science to practical reality for educational and industrial purposes in three main steps: Digitalization, Data reparation and acquisition and Animation. The presentation ways depend on the capabilities of both the software and hardware. Thus, this is also an attempt to generalize presentation ways which can be used to apply on other mechanical machines.https://acc-ern.tul.cz/archiv/PDF/ACC_2020_1_03.pdf2020-06-30314610.15240/tul/004/2020-1-003VR-headsetLinatorIPMHTC-VIVE ProBlenderOTAGLION PowerblockCREOUnityOmarHusseinomarwanhussein97@gmail.com1Hochschule Zittau/Görlitz, IPM DepartmentAUTHORSteffenHärtelts.haertelt@hszg.de2Hochschule Zittau/Görlitz, IPM DepartmentAUTHORChristianVogelc.vogel@hszg.de3Hochschule Zittau/Görlitz, IPM DepartmentAUTHORAlexanderKratzscha.kratzsch@hszg.de4Hochschule Zittau/Görlitz, IPM DepartmentAUTHORSCHROEDER, R.: Learning from virtual reality applications in education. Virtual Reality. 1995, Vol. 1, pp. 33–39.110.1007/BF02009711INNOVATIONSGRUPPE PLUSENERGIE: Forschungsprogramm Energie in Gebäuden. [online]. 2012. Available from WWW: https://www.energiecluster.ch/admin/data/files/file/file/733/01_rolf-moser-27082012-igpeg4.pdf?lm=14504242262VIVE™: Discover Virtual Reality Beyond Imagination. [online]. 2020. Available from WWW: https://www.vive.com/3OTAG: lion-Powerblock von Otag: das Mikro BHKW fürs Eigenheim. [online]. 2020. Available from WWW: https://www.heizungsfinder.de/bhkw/hersteller/otag-lionpowerblock4LÜTHI, A: Bison Powerblock: Pelletheizung mit linear angetriebenem Dampfmotor. [online]. 2012. Available from WWW: http://www.holzenergiesymposium.ch/12.HES/%20Pr%8asentationen_12_HES_2012%20pdf/06_Luethi_Bison .pdf5FRENKEN, K.; NUVOLARI, A.: The Early Development of the Steam Engine: An Evolutionary Interpretation using Complexity Theory. [online]. Eindhoven Centre for Innovation Studies, The Netherlands: Technische Universiteit Eindhoven, 2003. Available from WWW: https://pdfs.semanticscholar.org/96df/37a5dfec4effd195085c8dbaa61cb03a0bc2.pdf6IKZ.de: Revolutionäre flüssiggasbetriebene BHKW-Technik - Mit dem lion-Powerblock zieht Energieeffizienz in Häuser ein. [online]. 2009. Available from WWW: https://www.ikz.de/nc/detail/news/detail/revolutionaere-fluessiggasbetriebene-bhkwtechnik-mit-dem-lion-powerblock-zieht-energieeffizienz-in/7UNITY TECHNOLOGIES: Unity User Manual (2018.2). [online]. 2018. Available from WWW: https://docs.unity3d.com/Manual/index.html8MICROSOFT: C# documentation. [online]. 2020. Available from WWW: https://docs.microsoft.com/en-us/dotnet/csharp/9BHKW-Infothek: OTAG ist Geschichte, es lebe die „lion energy“. [online]. 2012. Available from WWW: https://www.bhkw-infothek.de/nachrichten/7581/2012-03-29- otag-ist-geschichte-es-lebe-die-„lion-energy/10MILITAR, J. G.; ORTWEIN, A.; SENORIO, S. M.; SCHADE, J.: Potential and Demand for Energy from Biomass by Thermo-chemical Conversion in the Province of Antique, Philippines – Part 1, Biomass Availability Analysis. Philippine Journal of Science. 2014, Vol. 143, Issue 2, pp. 137–145. ISSN 0031-7683. Available from WWW: http://philjournalsci.dost.gov.ph/home-1/41-vol-143-no-2-december-2014/517- potential-and-demand-for-energy-from-biomass-by-thermo-chemical-conversion-in-theprovince-of-antique-philippines-part-1-biomass-availability-analysis11ROUSSOU, M.; OLIVER, M.; SLATER, M.: The virtual playground: an educational virtual reality environment for evaluating interactivity and conceptual learning. Virtual Reality. 2006, Vol. 10, pp. 227–240.1210.1007/s10055-006-0035-5PTC: Creo Parametric 3D Modeling Software. [online]. 2020. [accessed 2020-02-18]. Available from WWW: https://www.ptc.com/en/products/cad/creo/parametric13

ORIGINAL_ARTICLEThe residual vibrations originating from a finite stiffness of the motion control system influence the positioning accuracy of machine working members. This paper deals with the dynamic behavior modelling of a motor load composed of seismic mass supported by two flat springs. Two linear models presented in the paper comprise a continuous model based on the prismatic beam bending vibration theory with appropriated boundary conditions and a discrete model with lumped parameters and a single degree of freedom. Both models were used to simulate the motion of oscillating system with various displacement laws and the results were compared with experimental data measured on a real system.https://acc-ern.tul.cz/archiv/PDF/ACC_2020_1_04.pdf2020-06-30475310.15240/tul/004/2020-1-004Mechanical vibrationEquivalent modelDampingFrequency responseTime responseMartinPustkamartin.pustka@vuts.cz1VÚTS, a.s., Measurement DepartmentAUTHORZdeněkBraierzdenek.braier@vuts.cz2VÚTS, a.s., Measurement DepartmentAUTHORJIRÁSKO, P. et al.: Special mechanisms and their drives. Part III. VÚTS, a.s., Liberec, 2018. ISBN 978-80-87184-86-8.1BRAIER, Z.: Analýza chování a měření lineárního motoru s dynamicky uloženou kmitající hmotou na pružinách. Ph.D. Thesis. Faculty of Mechatronics, Informatics and Interdisciplinary Studies, Technical University of Liberec, 2019.2PUSTKA, M.; ERHART, J.; MOKRÝ, P.: Vibration control using piezoelectric bimorphs connected to negative capacitance circuits. Advances in Applied Ceramics. 2010, Vol. 109, Issue 3, pp. 180-183. 310.1179/174367509X12447975734113BREPTA, R.; PŮST, L.; TUREK, F.: Mechanické kmitání. Sobotáles, Praha, 1994. ISBN 80-901684-8-5.4EWINS, D. J.: Modal Testing: Theory, Practice and Application. Research Studies Press, Baldock, 2000. ISBN-10: 0863802184. ISBN-13: 9780863802188.5BRAIER, Z.; ŠIDLOF, P.; FIŠER, P.: Measurement, evaluation and comparison of positioning accuracy and other SGT linear motor quantities. In: 14th International Conference Mechatronic Systems and Materials MSM 2018. AIP, 2018.610.1063/1.5066470