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Marek Kurnatowski

Abstract

The article describes the results of tests carried out to determine the measurable effect of vibrations on the accuracy of measurements with an automatic precise leveller. It contains specification of the research station created to examine the case and description of factors affecting the measurement results. The multi-frequency vibrations were forced on a leveller during measurements and calculated mean errors for each frequency analysed. The range of frequencies for which the measurement was possible was estimated. The obtained results can be helpful in the engineering measurements designing, especially in industrial areas, where vibrations are an inseparable element of the environment.

Open access

Natalia Lasowicz and Robert Jankowski

., Kwiecień A., Jankowski R.: Enhancing the seismic resistance of columns by GFRP confinement using flexible adhesive - experimental study, Key Engineering Materials, 624, (2015) 478-485. 8. Majewska-Lasowicz N., Jankowski R.: Modal analysis of a steel grandstand, Technology and Art, 3, (2012) 94-97. 9. Nhleko S. P., Williams M.S., Blakeborough A.: Vibration perception and comfort level for an audience occupying a grandstand with perceivable motion, Proc. of IMAC-XXVII, (2009). 10. Reynolds P., Pavic A., Ibrahim Z.: Changes of

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Jelena M. Djoković, Dejan I. Tanikić, Ružica R. Nikolić and Saša M. Kalinović

, particle size, and duration of screening, International Journal of Mineral Processing, Vol. 52, No. 4, 1998, pp. 261 – 272. [7] CHEN, Y. H. - TONG, X.: Modelling screening efficiency with vibrational parameters based on DEM 3D simulation, Mining Science and Technology, Vol. 20, No. 4, 2010, pp. 615 – 620. [8] JIAO, H. G. - LI, J. R. - ZHAO, Y. M.: Test and research on optimum configuration of diameter of screen aperture and incline of screen deck, Coal Preparation Technology, Vol. 35, No. 2, 2007, pp. 1 – 4. [9] UMEHARA, S. - YAMAZAKI, T. - SUGAI, Y.: A

Open access

Maciej Major, Izabela Minda and Izabela Major

, Podręcznik użytkownika, 2014, http://docs.autodesk.com/RSAPRO/2014/PLK/index.html?url=filesROBOT (In Polish). [8] SCI P354: Design of Floors for Vibration: A New Approach The Steel Construction Institute (2007 Edition). [9] PN-EN 1991-1-4:2008, Eurocode 1: Actions on structures, Part 1-4: General actions – wind actions, PKN, Warszawa, 2008, (In Polish).

Open access

Bejan Sergiu

Abstract

The natural soil used in filling the embankment of the road communications is characterized by the following factors: humidity, porosity, toughness. For certain factor values that describe the soil state is distinguished a certain soil behavior under the influence of the external forces applied through static or dynamic mechanical means.

In this study are presented the numeric simulation results of the soil-compactor interaction based on the complex and nonlinear rheological model proposed by the author in the result of the elaborated doctorate thesis, that follows the real soil characteristics (elastic, dissipative and plastic) on those of the compaction equipment (with a single vibrating roll). The model was harmonised and granted in accordance with the results obtained from the processing of the experimental data. For the simulation model was used the specialized software package Matlab (Simulink, SimMechanics). The obtained results revealed the real behavior of the equipment and its action on the compacted soil.

Open access

Polidor Bratu and Ovidiu Vasile

]. D. INMAN: “Vibration with Control”, John Wiley and Sons Ltd., New Jersey, 2006. [10]. S. RAO: “Mechanical Vibrations” Fourth Edition, Pearson Education Inc., New Jersey, 2004. [11]. M. RĂDOI, E. DECIU: “Mecanica”, Editura Didactică şi Pedagogică, Bucureşti, 1977.

Open access

Ján Dižo, Miroslav Blatnický and Rafał Melnik

, P., Kurčík, P., Pavlík, A. & Blatnický, M. (2018). E3-kolka with a steering mechanism for improvement of the stability in curving. In Experimental and Computational methods in engineering 2018: 5th conference for young scientific workers, 6-8 June 2018 (pp. 107-114). Ústí nad Labem, Czech Republic: J. E. Purkyně University. [6] Kardas-Cinal, E. (2018). Methods of vibrational comfort evaluation in means of transport. In Transport Means 2018: 22 nd International Scientific Conference, Part II, 12-14 October 2018 (pp. 1008-1013). Trakai, Lithuania: Kaunas

Open access

Ján Dižo, Miroslav Blatnický and Rafał Melnik

References [1] EN 12299:2009 Railway Applications – Ride Comfort for Passengers – Measurement and Evaluation. (2009). European Committee for Standardization, Brussels. [2] Dailydka, S., Naimovičius, S. & Lingaitis, V. (2012) Analysis of passenger vibration comfort in a train. In 16 th International Conference Transport Means 2012: Proceedings of the Conference, 25-26 October 2012 (pp. 302-305). Kaunas, Lithuania. [3] Lack, T. & Gerlici, J. (2008). Analysis of vehicle dynamic properties form: The point of view of passenger comfort. Komunikacie

Open access

Miroslav Blatnický, Kateryna O. Kravchenko and Ján Dižo

., J. Harusinec, J., Gerlici, J. & Lack, T. (2013). Analysis of models for simulation computations and experimental detection of stress in braked railway wheel In: TRANSCOM 2013: 10th European conference of young researchers and scientists: Žilina, June 24-26, 2013, (pp. 283 - 287). Slovak Republic. Žilina, University of Žilina. [6] Klimenda, F., Skocilasova, B. (2015). Rollers vibration of pipe conveyor. Manufacturing Technology, 15(6), 991-995. [7] Bathe, K. J. (1996). Finite Element Method. Prenice-Hall, Inc. New Jersey. [8] Lack, T., Gerlici, J

Open access

Tomas Gajdosik, Frantisek Brumercik, Michal Lukac and Pawel Drozdziel

Niezawodnosc -Maintenance and Reliability, 41(1), 4-10. ISSN 1507-2711. [7] Jedlinski, L., Caban, J., Krzywonos, L., Wierzbicki, S. & Brumercik, F. (2015). Application of vibration signal in the diagnosis of IC engine valve clearance. Journal of Vibroengineering, 17(1), 175-187. ISSN 1392-8716. [8] Lukac, M., Brumercik, F., Krzywonos, L. & Drozdziel, P. (2014). Tension mechanism dynamic analysis. Communications, 16(3A), 184-188. ISSN 1335-4205. [9] Filo, M. & Lukac, M. (2005). Modeling and Simulation of Mechanisms with Computer