@inproceedings{35227, author = {{Kiekbusch, T and Magyar, Balázs and Sauer, B}}, booktitle = {{VDI Berichte 2308}}, isbn = {{978-3-18-092308-6}}, pages = {{103--112}}, publisher = {{VDI Verlag GmbH}}, title = {{{Multi-Ebenen-Simulation zur Berechnung der lokalen Lebensdauer in hochbelasteten Wälzkontakten}}}, year = {{2017}}, } @inproceedings{35222, author = {{Oehler, M and Magyar, Balázs and Sauer, B}}, booktitle = {{VDI-Berichte 2294}}, isbn = {{978-3-18-092294-2}}, pages = {{363--372}}, publisher = {{VDI Verlag GmbH}}, title = {{{A new standardizable calculation method to predict the efficiency of worm gear drives}}}, year = {{2017}}, } @inproceedings{35229, author = {{Thielen, S and Magyar, Balázs and Burkhart, C and Sauer, B}}, location = {{Schweinfurt}}, pages = {{Vortrag 14}}, title = {{{Verträglichkeitsuntersuchungen am tribologischen Ersatzsystem}}}, year = {{2017}}, } @inproceedings{35225, author = {{Magyar, Balázs and Thielen, S and Löwenstein, M and Becker, A and Sauer, B}}, location = {{Beijing}}, title = {{{EHL Simulation of the Timing Chain Drive}}}, volume = {{ID 494908}}, year = {{2017}}, } @inproceedings{35228, author = {{Emrich, S and Burkhart, C and Magyar, Balázs and Kopnarski, M and Sauer, B}}, location = {{Schweinfurt}}, pages = {{Vortrag 15}}, title = {{{Oberflächenanalyse der Tribokontakte von Radialwellendichtsystemen}}}, year = {{2017}}, } @inproceedings{35226, author = {{Thielen, S and Magyar, Balázs and Foko Foko, F and Sauer, B}}, location = {{Beijing}}, title = {{{EHL Simulation of the Radial Shaft Sealing System}}}, volume = {{ID 494903}}, year = {{2017}}, } @inproceedings{35224, author = {{Thielen, S and Magyar, Balázs and Foko Foko, F and Sauer, B}}, isbn = {{978-3-9817451-2-2}}, pages = {{22/1--22/8}}, publisher = {{GfT}}, title = {{{EHL simulation of radial shaft seals}}}, year = {{2017}}, } @inproceedings{34613, author = {{Thielen, S and Magyar, Balázs and Sauer, B}}, isbn = {{978-3-9817451-4-6}}, pages = {{48/1--48/11}}, publisher = {{GfT}}, title = {{{TEHD Simulation von Radialwellendichtringen}}}, year = {{2017}}, } @article{35277, author = {{Oehler, M. and Magyar, Balázs and Sauer, B.}}, issn = {{0015-7899}}, journal = {{Forschung im Ingenieurwesen}}, keywords = {{General Engineering}}, number = {{2-3}}, pages = {{145--151}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Ein neuer, normungsfähiger Berechnungsansatz für den Wirkungsgrad von Schneckengetrieben}}}, doi = {{10.1007/s10010-017-0225-1}}, volume = {{81}}, year = {{2017}}, } @article{34439, abstract = {{A method for the reconstruction of turned shaft surfaces with a (fractal) Weierstrass–Mandelbrot-function (WMF) is presented. The WMF is modified to allow to freely choose a phase-shift for every frequency. The reconstruction is based on distinct profiles in axial and tangential direction and the statistical distribution of low-wavelength portions of the surface is taken into account by adding t-distributed random deviations to the surface. The work is validated by reconstructing measured shaft surfaces with different manufacturing parameters, which shows good accuracy for periodic surfaces. This method allows for a characterization of surfaces with a limited number of parameters and can be used to store the characteristics of measured surfaces with a reduced amount of data compared to a point-cloud surface.}}, author = {{Thielen, Stefan and Magyar, Balázs and Piros, Attila}}, issn = {{0301-679X}}, journal = {{Tribology International}}, keywords = {{Roughness, Structure, Fractal, Machining}}, pages = {{349--357}}, title = {{{Reconstruction of three-dimensional turned shaft surfaces with fractal functions}}}, doi = {{https://doi.org/10.1016/j.triboint.2015.11.028}}, volume = {{95}}, year = {{2016}}, } @inproceedings{35233, author = {{Thielen, S and Magyar, Balázs and Sauer, B and Schneider, F and Mayer, P and Kirsch, B and Müller, R and v. Harbou, E and Aurich, J.C.}}, location = {{Hämeenlinna}}, title = {{{Functional investigation of zero lead radial shaft seal counter-surfaces turned with a special method}}}, year = {{2016}}, } @inproceedings{35230, author = {{Oehler, M and Magyar, Balázs and Sauer, B}}, isbn = {{978-3-9817451-1-5}}, pages = {{21/1--21/11}}, publisher = {{GfT}}, title = {{{Gekoppelte thermische und tribologische Analyse von Schneckengetrieben}}}, year = {{2016}}, } @inproceedings{35231, author = {{Magyar, Balázs and Thielen, S and Löwenstein, M and Becker, A and Sauer, B}}, isbn = {{978-3-9817451-1-5}}, pages = {{22/1--22/10}}, publisher = {{GfT}}, title = {{{EHD Simulation eines Kettengelenks}}}, year = {{2016}}, } @article{34441, abstract = {{The state of the art industrial manufacturing process to produce shafts as counter surfaces for radial shaft seal rings is plunge grinding. This process consists of three major steps. The blank is turned to a slight diameter-oversize followed by the heat treatment and the hard-finishing by plunge grinding. The geometric surface structures of the resulting shafts in general exhibit a stochastic distribution. These surface characteristics contribute to a reliable and stable sealing functionality. And the surface and subsurface hardness generally leads to a higher wear resistance of the shaft. Motivated by economic benefits and in order to achieve a compact production process for at least ten years, turning is investigated as an alternative manufacturing process. However due to the resulting lead structure on the shaft surface and the associated risk of leakage it has not become prevalent yet. In this paper turned shafts of the metastable austenitic steel AISI 347 (1.4550, X6CrNiNb1810) are investigated as alternative material for counter surfaces of radial shaft seal rings and compared to turned shafts of carburized AISI 5115 (1.7131, 16MnCr5). In addition to surfaces dry turned at room-temperature, cryogenic turned AISI 347 counter surfaces are analyzed. By applying cryogenic cooling, the formation of deformation-induced α′-martensite in the surface layer is possible during the turning process. Endurance tests in radial shaft seal ring test rigs are performed and complemented with detailed investigations of microstructure, micro-hardness and surface topography. The results are compared to results of state of the art ground AISI 5115 shafts.}}, author = {{Frölich, D. and Magyar, Balázs and Sauer, B. and Mayer, P. and Kirsch, B. and Aurich, J.C. and Skorupski, R. and Smaga, M. and Beck, T. and Eifler, D.}}, issn = {{0043-1648}}, journal = {{Wear}}, keywords = {{Radial shaft seal ring, Shaft surface, Cryogenic turning, Metastable austenitic steel, Deformation-induced martensite formation}}, pages = {{123--131}}, title = {{{Investigation of wear resistance of dry and cryogenic turned metastable austenitic steel shafts and dry turned and ground carburized steel shafts in the radial shaft seal ring system}}}, doi = {{https://doi.org/10.1016/j.wear.2015.02.004}}, volume = {{328-329}}, year = {{2015}}, } @inproceedings{35234, author = {{Oehler, M and Magyar, Balázs and Sauer, B}}, booktitle = {{VDI-Berichte 2255}}, isbn = {{978-3-18-092255-3}}, pages = {{937--948}}, publisher = {{VDI Verlag GmbH}}, title = {{{Worm Gear Drives with High Efficiency}}}, year = {{2015}}, } @article{35235, author = {{Magyar, Balázs and Sauer, B}}, issn = {{2331-2483}}, journal = {{Power Transmission Engineering}}, number = {{4}}, pages = {{52--56}}, title = {{{Calculation of the efficiency of worm gear drives}}}, volume = {{9}}, year = {{2015}}, } @article{34442, abstract = {{Radial shaft seals are used in a variety of applications, where rotating shafts in steady housings have to be sealed. Typical examples are crankshafts, camshafts, differential gear or hydraulic pumps. In the operating state the elastomeric seal ring and the shaft are separated by a lubrication film of just a few micrometers. Due to shear strain and fluid friction the contact area is subject to a higher temperature than the rest of the seal ring. The stiffness of the elastomeric material is intensely influenced by this temperature and thus contact pressure, friction and wear also strongly depend on the contact temperature. In order to simulate the contact behavior of elastomer seal rings it is essential to use a comprehensive approach which takes into consideration the interaction of temperature, friction and wear. Based on this idea a macroscopic simulation model has been developed at the MEGT. It combines a finite element approach for the simulation of contact pressure at different wear states, a semi-analytical approach for the calculation of contact temperature and an empirical approach for the calculation of friction. In this paper the model setup is presented, as well as simulation and experimental results.}}, author = {{Frölich, D. and Magyar, Balázs and Sauer, B.}}, issn = {{0043-1648}}, journal = {{Wear}}, keywords = {{Radial shaft seal ring, Contact temperature, Wear, Friction torque, Finite element simulation}}, number = {{1}}, pages = {{71--80}}, title = {{{A comprehensive model of wear, friction and contact temperature in radial shaft seals}}}, doi = {{https://doi.org/10.1016/j.wear.2013.12.030}}, volume = {{311}}, year = {{2014}}, } @inproceedings{35259, author = {{Sousa, F.J.P. and Glawe, M and Magyar, Balázs}}, isbn = {{978-3-00-046545-1}}, pages = {{3/1--38/10}}, publisher = {{GfT}}, title = {{{Tribologische Untersuchung eines neuen Werkzeughalters zur Polierbearbeitung von keramischen Fliesen}}}, year = {{2014}}, } @inproceedings{35264, author = {{Magyar, Balázs and Sauer, B}}, isbn = {{978-3-943563-10-8}}, location = {{Ostfildern}}, publisher = {{Technische Akademie Esslingen}}, title = {{{Numerical Investigation of the Contact of Rough Surfaces}}}, year = {{2014}}, } @inproceedings{35261, author = {{Magyar, Balázs and Sauer, B}}, isbn = {{978-1-78242-195-5}}, publisher = {{Woodhead Publishing}}, title = {{{Calculation of the efficiency of worm gear drives}}}, year = {{2014}}, }