Browsing by Author "Lepšík Petr"
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- ItemAccuracy Verification of Glass Kilnforming Process after Improvement by DOE(MAGNANIMITAS Assn., 2020) Sojka Vladimír; Lepšík Petr
- ItemAnalysis and Measurement of the Charge Intensity of the Selected Electrospinning Electrodes(Univerzita Jana Evangelisty Purkyně v Ústí nad Labem, 2014) Petrů Michal; Novák Ondřej; Lepšík Petr
- ItemAnalysis of Changes in the Surface Quality of a UD Prepregs Composite due to Mechanical Loading(Trans Tech Publications Inc., 2015) Petrů Michal; Syrovátková Martina; Martinec Tomáš; Lepšík Petr
- ItemAnalytical and creative practices in the maintenance of machines and equipment(Technická univerzita v Liberci, 2015) Mašín Ivan; Lepšík Petr
- ItemCalculation of Process&rsquo Ideality Degree Through Ideality Equation of TRIZ(MAGNANIMITAS, ATTN., 2020) Sojka Vladimír; Alves Anabela Carvalho; Lepšík Petr
- ItemCam mechanism for car seat testing(Kluwer Academic Publishers, 2017) Srb Pavel; Kulhavý Petr; Fliegel Vítězslav; Lepšík Petr
- ItemCharacteristic comparison of wound and wrapped composite tubes made from carbon prepreg using modal analysis(JVE INT LTD, 2018) Kulhavý Petr; Lepšík Petr
- ItemCOMPARISON OF BENDING PROPERTIES FOR WINDED AND WRAPPED COMPOSITES(2018) Kulhavý Petr; Lepšík Petr
- ItemCOMPARISON OF BENDING PROPERTIES FOR WINDED AND WRAPPED COMPOSITES(Czech University of Life Sciences Prague, 2017) Kulhavý Petr; Lepšík Petr
- ItemComparison of modal characteristic of wrapped and winded composite tubes from carbon prepreg(JVE International, 2017) Kulhavý Petr; Lepšík PetrConstructions based on long fiber composite frames gaining significant and irreplaceable position through almost all traffic sectors. The aim of this presented work is a study of composite rods made by two ways from pre impregnated fibres. In technical practice, one can find applications of so called “prepregs”, especially for so-called wrapping, which is a gradual helical layering of wide tapes. This is a quite simply method with a good quality of final parts, but the using is limited only for straight shapes. Therefore, a method called winding, which is a simultaneous deposition of larger number of fiber filaments was used to handle the problem for curved shapes and fluently changed cross-sections. Even though this method could expand the using of presaturated fibres, in a real case compared with wrapped parts there is evident imperfect alignment and mutually storing of placed fibers. This could be mainly caused by a significant tortuosity and stickiness of the individual fiber strands. The objective the carried work was to experimentally compare the vibrational - modal behavior of two almost identical rods. One was winded and the second kind was wrapped with the same structure of layers, weight and curing parameters. The results of the two compared tubes, that should be theoretically identical, were significantly different. Another step was compilation of a numerical model and verify its suitability for parts created with the two mentioned production methods. The numerical model was in a good agreement with the empirical obtained from the experiment with wrapped parts. However, the using of this standard model also for winded tube is questionable, because of the significantly differences in founded natural frequencies.
- ItemComparison of the Number of Repetitions on the Influence of Kruskal-wallis Comparison Evaluation in Genetic Algorithms for Ft10 And Different Crossing Probabilities(InvEnt 2020, 2020) Manlig František; Koblasa František; Vavroušek Miroslav; Lepšík Petr
- ItemComposite seat padding(2020) Fliegel Vítězslav; Martonka Rudolf; Srb Pavel; Lepšík Petr
- ItemDefining Production Process as a Technical System – SIPOC/9W(MAGNANIMITAS Assn., 2021) Sojka Vladimír; Lepšík Petr
- ItemDesign and Analysis of Honeycomb Based Impact Attenuator(2020) Lepšík Petr
- ItemDesign of a CMM actuation system(CZECH UNIVERSITY LIFE SCIENCES PRAGUE, DEPT SYSTEMS ENG, KAMYCKA 129, PRAGUE 6 165 21, CZECH REPUBLIC, 2019) Hadač Ondřej; Lepšík Petr
- ItemDesign of composite structures using advanced numerical tools(Institute of Technology and Production Management University of J.E. Purkyne, 2018) Kulhavý Petr; Lepšík Petr
- ItemDesign Optimization Of Composite Parts Using Doe Method(Czech University of Life Sciences Prague, 2017) Lepšík Petr; Kulhavý Petr
- ItemDESIGN OPTIMIZATION OF COMPOSITE PARTS USING DOE METHOD(Czech Univ Life Sci, Fac Engn, 2018) Lepšík Petr; Kulhavý Petr
- ItemDigitization of structured composite plates with regard to their numerical simulations(Univerzita J. E. Purkyne, 2017) Kulhavý Petr; Lepšík Petr
- ItemDynamic analysis of 3D printed and moulded composites with carbon microfibers(2018) Kulhavý Petr; Fliegel Vítězslav; Lepšík Petr; Srb Pavel