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Effectivity of Piezoelectric Transition Elements in Modelling of Electro-Mechanical Systems

Abstract

The paper presents the coupled electro-mechanical problem. In the numerical analysis of the issue, piezoelectric solid-to-shell transition elements were applied. They combine three-dimensional or hierarchical shell piezoelectric elements with piezoelectric first order elements. The mentioned first order of the element refers to the field of transversal displacements of an element. The mechanical field of the discussed piezoelectric elements may correspond to: the model of three-dimensional theory of elasticity, hierarchical shell models of higher orders or the first order shell model. The electrical field of the potential may be modelled with hierarchical dielectric first order models or higher in transverse direction or with a three-dimensional theory. Effectiveness of modification of algorithms of classical piezoelectric elements was assessed in this paper. To perform such an assessment, curves of convergence of hp method in model tasks are presented. Curves obtained with the use of classical and modified piezoelectric transition elements were set and compared.

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Relationship between economic growth and SO2 emissions - based on the PSTR model

Abstract

In this paper, we used the panel smooth transition model (PSTR) to study the nonlinear relationship between sulfur dioxide emissions and economic growth in the three regions of China’s eastern, middle and western regions, based on panel data from 31 provinces and autonomous regions in China from 2005 to 2017. And calculated the elasticity of the impact of total export-import volume and urbanization rate on emissions. The empirical results indicate that economic development and sulfur dioxide emissions are positively correlated in the three regions of East, Middle and West. In the eastern region, when the economic scale is lower than the threshold value, it has a negative impact on SO2 emissions; but when it is higher than the threshold value, it has a positive impact on SO2 emissions, and the smoothing rate between the two regime is slow. The per capita GDP in the middle and western regions is weakly positively correlated with SO2 emissions. When the economic scale reaches the threshold value, its positive impact on SO2 emissions will increase, and economic development will further increase emissions.

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CFD Simulation Of Air-Flow Over A „Quarter-Circular” Object Valided By Experimental Measurement

aerodynamic flows. In: AIAA Paper 1993-2906 . Florida: Orlando, 1993. DOI: 10.2514/6.1993-2906. [5] MENTER, F.R. Two-equation eddy-viscosity turbulence models for engineering applications. In: AIAA-Journal , Vol. 32, No. 8, 1994, pp. 1598-1605. DOI: 10.2514/3.12149. [6] MENTER, F.R., LANGTRY, R.B., LIKKI, S.R., SUZEN, Y.B., HUANG, P.G., and VÖLKER, S. A Correlation based Transition Model using Local Variables Part 1- Model Formulation. In: ASME-GT2004-53452 , ASME TURBO EXPO, 2004, Austria: Vienna. DOI: 10.1115/1.2184352. [7] LANGTRY, R.B., MENTER, F

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The Godunov method for a 2-phase model

References 1. R. M. Colombo, F. Marcellini, and M. Rascle, A 2-phase trafic model based on a speed bound, SIAM J. Appl. Math., vol. 70, no. 7, pp. 2652-2666, 2010. 2. S. Blandin, D. Work, P. Goatin, B. Piccoli, and A. Bayen, A general phase transition model for vehicular trafic, SIAM J. Appl. Math., vol. 71, no. 1, pp. 107-127, 2011. 3. M. J. Lighthill and G. B. Whitham, On kinematic waves. II. A theory of trafic ow on long crowded roads, Proc. Roy. Soc. London. Ser. A., vol. 229, pp. 317-345, 1955

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Application of a Chaotic Oscillator in an Autonomous Mobile Robot

.-GUPTA, S. K. : GPU Based Generation of State Transition Models using Simulations for Unmanned Surface Vehicle Trajectory Planning, Robotics and Autonomous Systems 60 No. 12 (2012), 1457-1471. [10] KERNBACH, S. : Encoder-Free Odometric System for Autonomous Microrobots, Mechatronics 22 No. 6 (2012), 870-880. [11] VOLOS, C. K.-KYPRIANDIS, I. M.-STOUBOULOS, I. N. : A Chaotic Path Planning for Autonomous Mobile Robots, Robotics and Autonomous Systems 60 (2012), 651-656. [12] CARBAJAL-G´OMEZ, V. H.-TLELO-CUAUTLE, E.-FERNÁNDEZ, F

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Aspects of Infrared Radioluminescence dosimetry in K-feldspar

(1–3): 45–58, DOI 10.1016/S0022-2313(99)00152-0. http://dx.doi.org/10.1016/S0022-2313(99)00152-0 [10] Trautmann T, Krbetschek MR, Dietrich A and Stolz W, 2000. The basic principle of radioluminescence dating and a localized transition model. Radiation Measurements 32(5–6): 487–492, DOI 10.1016/S1350-4487(00)00119-0. http://dx.doi.org/10.1016/S1350-4487(00)00119-0

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Effects of Boundary Layer Control Method on Hydrodynamic Characteristics and Tip Vortex Creation of a Hydrofoil

airfoil, ? 2016. 29. Ghadimi, P., Kermani, S., Feizi Chakab, M.A. : Numerical hydro-acoustic analysis of NACA foils in marine applications and comparison of their acoustic behavior. ISRN Mech. Eng., 2013, 1-12, 2013. 30. Kelterer ME, Pecnik R, Sanz W. : Computation of Laminar-Turbulent Transition in Turbumachinery Using the Correlation Based γ-Reθ Transition Model. ASME Proceedings, Turbomachinery, 7, 613-622. 31. Counsil J.N., Boulama K.G. 2013? : Low-Reynolds-Number Aerodynamic Performances of the NACA 0012 and Selig

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Studies Regarding the Reaction Method to Wear Braking Mechanism

disc rotors, Wear 255: 1256-1260. [9] Quinn TFJ, Winer WO (1985) The thermal aspects of oxidational wear, Wear 102: 67-80. [10] Tian X, Kennedy FE (1994) Maximum and Average Flash temperatures in sliding contacts, Journal of tribology, 116(1): 167-174. [11] Yang J, Winer WO (1991) A comparison between the thermomechanical wear model and some experimental observation, ASME J. Tribol., 113: 262-268. [12] Cowann RS, Winer WO (1993) Application of the Thermomechanical wear transition model to layered media

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Anomalous Fading of Ir-Stimulated Luminescence from Feldspar Minerals: Some Results of the Study

. Radiation Measurements 23: 625-632. Templer RH, 1986. The localised transition model of anomalous fading. Radiation Protection Dosimetry 17: 493-497. Visocekas R, 1985. Tunnelling radiative recombination in labradorite; its association with anomalous fading of thermoluminescence. Nuclear Tracks and Radiation Measurements 10: 521-526. Visocekas R, Spooner NA, Zink A and Blanc P, 1994. Tunnel after glow, fading and infrared emission in thermoluminescence of feldspars. Radiation Measurements

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Die Bildungsexpansion in der Schweiz – eine Reanalyse unter besonderer Berücksichtigung geschlechtsspezifischer Bildungschancen

. Modellvergleich und Ergebnisinterpretation in Logit- und Probit-Regressionen. Kölner Zeitschrift für Soziologie und Sozialpsychologie 64(2): 377-395. Blossfeld, Hans Peter, Jutta von Maurice und Thorsten Schneider. 2011. Education as a lifelong process. Zeitschrift für Erziehungswissenschaft 11 (Sonderheft 14): 19-34. Breen, Richard und Jan O. Jonsson. 2000. Analyzing educational careers: A multinomial transition model. American Sociological Review 65(5): 754-773. Breen, Richard, Ruud Luijkx, Walter Müller und Reinhard Pollak

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