@incollection{LattnerGellerKluck2022, author = {Lattner, Yannick and Geller, Marius and Kluck, Norbert}, title = {Generierung und Parametrisierung von Radialverdichterkennlinien auf Basis neuronaler Netze}, series = {NAFEMS DACH Regionalkonferenz - Conference Proceedings}, volume = {2022}, isbn = {978-1-910643-86-0}, pages = {287 -- 292}, year = {2022}, abstract = {Die Optimierung von Radialverdichtern in Hinblick auf Ressourceneffizienz nimmt heutzutage einen immer gr{\"o}ßeren Stellenwert ein. Die kennlinien- und auch kennfeldbasierte Optimierung l{\"o}st dabei die betriebspunktbasierte Optimierung von Radialverdichterlaufr{\"a}dern immer mehr ab. Moderne komplexe numerische Simulationstools zur Str{\"o}mungsanalyse und Softwaretools aus dem Bereich der Optimierung auf Basis von Design-of-Experiments (DoE) werden in immer gr{\"o}ßerem Maße in den Prozess eingebunden. Die sich in den letzten Jahren weiterentwickelte Hardware erlaubt zus{\"a}tzlich immer komplexere Rechenmodelle in immer k{\"u}rzerer Zeit zu bearbeiten. Die vorliegende Arbeit befasst sich genau mit diesem Thema. Ausgangspunkt des Optimierungsprozesses sind eine Vielzahl von zuf{\"a}llig generierten Maschinendesigns, die unter Einhaltung von str{\"o}mungsabh{\"a}ngigen und maschinenabh{\"a}ngigen Kennzahlen automatisch erstellt wurden. Die im weiteren Prozessablauf gestalteten Simulationen der einzelnen Designs, die aufgrund der Bauweise und der Struktur ihrer Kennfelder grob unterschiedliche Konvergenzen und Abbruchkriterien (Pump- und Schluckgrenze) aufweisen, sind durch speziell implementierte physikbasierte Indikatoren ausfallsicher handhabbar. Die detaillierten, aber unterschiedlichen Kennlinien des Wirkungsgrades und des Druckverh{\"a}ltnisses in Abh{\"a}ngigkeit vom Massenstrom der einzelnen Simulationen sind zur weiteren Verwendung in der Optimierungsphase mithilfe von neuronalen Netzen trainiert worden. Der Aufbau des Metamodells zur eigentlichen Optimierung ist gekennzeichnet durch die Reduktion der vorhandenen Parameter unter Verwendung von B{\´e}zier-Splines, was in der vorliegenden Arbeit zu einer Reduzierung auf insgesamt lediglich 13 Parameter f{\"u}r beide betrachteten Kennlinien und ihre signifikanten Punkte f{\"u}hrt. In der nachfolgenden Optimierung kann das Metamodell zur Identifikation eines Designs mit anwenderspezifischen Zielen und Randbedingungen f{\"u}r Kennlinienbreite, Druckverh{\"a}ltnisbereich und Wirkungsgrad genutzt werden. F{\"u}r dieses Optimal-Design kann anschließend ohne weitere Simulationen die Kennlinie mit B{\´e}zier-Splines approximiert werden. Der Anwender ist somit in der Lage, bei der Optimierung von Radialverdichtern sowohl den Betriebspunkt als auch die Kennliniencharakteristika wie Pump- und Schluckgrenze sowie Druckverh{\"a}ltnisse jenseits des Betriebspunktes zu erfassen und so zus{\"a}tzliche Designevaluationen und Iterationsschleifen zu vermeiden.}, language = {de} } @article{KremerKhaniAppeletal.2022, author = {Kremer, Robert and Khani, Somayeh and Appel, Tamara and Palkowski, Heinz and Foadian, Farzad}, title = {Selective laser melting of CuSn10: simulation of mechanical properties, microstructure, and residual stresses}, series = {Materials}, volume = {15 (2022)}, number = {11}, issn = {1996-1944}, pages = {1 -- 13}, year = {2022}, language = {en} } @article{Guias2022, author = {Guias, Flavius}, title = {On efficacy and effectiveness of vaccines}, series = {Spora : a journal of biomathematics}, volume = {8 (2022)}, issn = {2473-5493}, pages = {56 -- 60}, year = {2022}, language = {en} } @article{Guias2020, author = {Guias, Flavius}, title = {Effects of the reproduction number in a SEIIRD model describing the time evolution of COVID-19 at country level}, series = {WSEAS Transactions on Computer Research}, volume = {19 (2020)}, issn = {1991-8755}, pages = {292 -- 297}, year = {2020}, language = {en} } @incollection{Weidauer2020, author = {Weidauer, Sabine}, title = {Auswertung zus{\"a}tzlicher Mathematikangebote f{\"u}r Studierende des Fachbereichs Maschinenbau im Rahmen des mehrj{\"a}hrigen Projekts "Qualit{\"a}t in der Lehre"}, series = {Proceedings 16. Workshop Mathematik in Ingenieurwissenschaftlichen Studieng{\"a}ngen : Dortmund, Mai 2020 / Hochschule Wismar, Gottlob Frege Centre}, publisher = {Hochschule Wismar}, address = {Wismar}, pages = {42 -- 47}, year = {2020}, language = {de} } @article{Guias2020, author = {Guias, Flavius}, title = {Numerical simulation of a modified SIR model fitting statistical data for COVID-19}, series = {WSEAS Transactions on Computer Research}, volume = {8 (2020)}, issn = {1991-8755}, pages = {115 -- 125}, year = {2020}, language = {en} } @article{BongertW{\"u}stStrauchetal.2020, author = {Bongert, Markus and W{\"u}st, Jan and Strauch, Justus and Buchwald, Dirk}, title = {Proof of concept for ozone-based disinfection of heater cooler units}, series = {Current directions in biomedical engineering}, volume = {6 (2020)}, number = {3}, issn = {2364-5504}, year = {2020}, language = {en} } @article{W{\"u}stBongertGelleretal.2019, author = {W{\"u}st, Jan and Bongert, Markus and Geller, Marius and Strauch, Justus and Buchwald, Dirk}, title = {In-silico-Studie der Einfl{\"u}sse der kontundierenden Geometrie auf die Blutstr{\"o}mung hinter einer Schlauchklemme}, series = {Kardiotechnik}, volume = {28 (2019)}, number = {Supplement 01}, issn = {0941-2670}, pages = {9 -- 9}, year = {2019}, language = {de} } @incollection{SchemmannGellerKluck2017, author = {Schemmann, Christoph and Geller, Marius and Kluck, Norbert}, title = {Identification of loss model parameters for highly loaded centrifugal impellers}, series = {Proceedings : 15th International Probabilistic Workshop \& 10th Dresdner Probabilistic Workshop, 27th-29th September 2017, Dresden, Germany}, publisher = {TUDpress}, address = {Dresden}, year = {2017}, language = {en} } @book{Ney2018, author = {Ney, Andreas}, title = {Wasser- und Windm{\"u}hlen in Westfalen und angrenzenden Regionen im Mittelalter nach urkundlichen Quellen}, publisher = {Verlag Moritz Sch{\"a}fer}, address = {Detmold}, isbn = {978-3-87696-160-6}, pages = {288}, year = {2018}, language = {de} } @article{Guias2017, author = {Guias, Flavius}, title = {Numerical solvers for large systems of ordinary differential equations based on the stochastic direct simulation method improved by the Picard and Runge-Kutta principles}, series = {International Journal of Mathematics and Computers in Simulation}, volume = {11 (2017)}, issn = {1998-0159}, pages = {93 -- 99}, year = {2017}, language = {en} } @incollection{Guias2017, author = {Guias, Flavius}, title = {Stochastic Picard-Runge-Kutta solvers for large systems of autonomous ordinary differential equations}, series = {2017 fourth International Conference on Mathematics and Computers in Science and Industry - MCSI 2017 : Corfu, Greece, 24-27 August 2017 : proceedings}, publisher = {IEEE}, address = {Piscataway, NJ}, pages = {289 -- 302}, year = {2017}, language = {en} } @book{G{\"o}ssner2017, author = {G{\"o}ssner, Stefan}, title = {Mechanismentechnik}, publisher = {Logos Verlag}, address = {Berlin}, isbn = {978-3-8325-4362-4}, pages = {310}, year = {2017}, language = {de} } @incollection{G{\"o}ssner2018, author = {G{\"o}ssner, Stefan}, title = {Fundamentals for web-based analysis and simulation of planar mechanisms}, series = {EuCoMeS 2018 : Proceedings of the 7th European Conference on Mechanism Science}, publisher = {Springer International Publishing}, address = {Cham}, pages = {215 -- 222}, year = {2018}, language = {en} } @incollection{G{\"o}ssnerUhlig2017, author = {G{\"o}ssner, Stefan and Uhlig, Jan}, title = {Das Potenzial der Webtechnologien in der Mechanismentechnik}, series = {Tagungsband : 3. IFToMM D-A-CH Konferenz 15./16. Februar 2017, TU Chemnitz}, publisher = {DuEPublico, Duisburg-Essen Publications Online}, address = {Duisburg; Essen}, pages = {52 -- 59}, year = {2017}, language = {de} } @incollection{GellerKluck2017, author = {Geller, Marius and Kluck, Norbert}, title = {"Smart Energy" mit "Computational Fluid Dynamics"}, series = {Smart Energy 2017 : Dezentrale Systeme — Wie smart ist die sch{\"o}ne neue Energiewelt?}, publisher = {vwh Verlag Werner H{\"u}lsbusch}, address = {Gl{\"u}ckstadt}, pages = {66 -- 79}, year = {2017}, language = {de} } @incollection{GellerSchemmannKluck2017, author = {Geller, Marius and Schemmann, Christoph and Kluck, Norbert}, title = {Optimization of the operation characteristic of a highly stressed centrifugal compressor impeller using automated optimization and metamodeling methods}, series = {Proceedings of the ASME ... ; Volume 2, C ; Noise and innovative noise reduction; radial turbomachinery aerodynamics; multidisciplinary design approaches, optimization and uncertainty quantification}, publisher = {The American Society of Mechanical Engineers}, address = {New York}, year = {2017}, language = {en} } @incollection{G{\"o}ssner2017, author = {G{\"o}ssner, Stefan}, title = {Ein funktionaler Ansatz der webbasierten, vektoriellen Kinematikanalyse ebener Mechanismen}, series = {Tagungsband 12. Kollquium Getriebetechnik : Technische Universit{\"a}t Dresden, 20.-22. September 2017}, publisher = {TUDpress}, address = {Dresden}, pages = {141 -- 152}, year = {2017}, language = {de} } @article{GehronZirbesBongertetal.2018, author = {Gehron, Johannes and Zirbes, Julian and Bongert, Markus and Sch{\"a}fer, Stefan and Fiebich, Martin and Krombach, Gabriele and B{\"o}ning, Andreas and Grieshaber, Philippe}, title = {Development and validation of a life-sized mock circulatory loop of the human circulation for fluid-mechanical studies}, series = {ASAIO Journal}, volume = {2018}, issn = {1058-2916}, year = {2018}, language = {en} } @article{BongertGellerPennekampetal.2019, author = {Bongert, Markus and Geller, Marius and Pennekamp, Werner and Volkmar, Nicolas}, title = {Simulation of personalised haemodynamics by various mounting positions of a prosthetic valve using computational fluid dynamics}, series = {Biomedical engineering/Biomedizinische Technik}, volume = {64 (2019)}, number = {2}, issn = {1862-278X}, pages = {147 -- 156}, year = {2019}, language = {en} } @article{BongertGehronGelleretal.2018, author = {Bongert, Markus and Gehron, Johannes and Geller, Marius and B{\"o}ning, A. and Grieshaber, Philippe}, title = {Bernoulli effect aggravates leg malperfusion during extracorporeal life support with femoral arterial cannulation}, series = {The Thoracic and Cardiovascular Surgeon}, volume = {2018}, number = {S01}, issn = {0040-6384}, year = {2018}, language = {en} } @incollection{BlejaGroßmannKhess2017, author = {Bleja, Jelena and Großmann, Uwe and Khess, Igor}, title = {Ambient Assisted Living - Datenschutzanforderungen und die Erfordernisse serviceorientierter kollaborativer Gesch{\"a}ftsmodelle}, series = {Smart Energy 2017 : Dezentrale Systeme — Wie smart ist die sch{\"o}ne neue Energiewelt?}, publisher = {vwh Verlag Werner H{\"u}lsbusch}, address = {Gl{\"u}ckstadt}, pages = {80 -- 90}, year = {2017}, language = {de} } @incollection{Bandow2018, author = {Bandow, Gerhard}, title = {Zukunftsorientierte Instandhaltungskonzepte und -strategien}, series = {INservFM : Messe und Kongress f{\"u}r Facility Management und Industrieservice : Frankfurt am Main, 27.02.-01.03.2018 : Tagungsband}, publisher = {Verlag Wissenschaftliche Scripten}, address = {Auerbach/V.}, year = {2018}, language = {de} } @book{Babiel2018, author = {Babiel, Gerhard}, title = {Bordnetze und Powermanagement}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-21142-4}, pages = {162}, year = {2018}, language = {de} } @incollection{Weidauer2016, author = {Weidauer, Sabine}, title = {Freiwillige Angebote f{\"u}r Studierende und Tutoren am Fachbereich Maschinenbau}, series = {Hanse-Kolloquium zur Hochschuldidaktik der Mathematik 2015 : Beitr{\"a}ge zum gleichnamigen Symposium am 13. \& 14. November 2015 an der Universit{\"a}t zu L{\"u}beck}, publisher = {WTM, Verlag f{\"u}r Wissenschaftliche Texte und Medien}, address = {M{\"u}nster}, pages = {9}, year = {2016}, language = {de} } @article{WeidauerRosemann2016, author = {Weidauer, Sabine and Rosemann, Heike}, title = {Zus{\"a}tzliche mathematische F{\"o}rderung am Fachbereich Maschinenbau}, series = {Die neue Hochschule}, number = {1}, issn = {0340-448X}, pages = {4}, year = {2016}, language = {de} } @article{GuiasEremeev2016, author = {Guias, Flavius and Eremeev, Pavel}, title = {Improving the stochastic direct simulation method with applications to evolution partial differential equations}, series = {Applied mathematics and computation}, number = {289}, issn = {0096-3003}, pages = {18}, year = {2016}, language = {en} } @book{OPUS4-1370, title = {Ver{\"a}nderung beherrschen}, editor = {Bandow, Gerhard}, publisher = {Verlag Praxiswissen}, address = {Dortmund}, isbn = {978-3-86975-076-7}, pages = {217}, year = {2013}, language = {de} } @incollection{RybackiGellerSchemmann2012, author = {Rybacki, A. and Geller, Marius and Schemmann, Christoph}, title = {Geometrieoptimierung eines Radialkompressorlaufrades im Hinblick auf CFD- und FEM-relevante Zielgr{\"o}ßen mit Hilfe von automatisierten Optimierungsmethoden}, series = {NAFEMS deutschsprachige Konferenz '12 : 8.-9. Mai, Bamberg, Deutschland ; Berechnung und Simulation - Anwednungen, Entwicklungen, Trends}, publisher = {NAFEMS Deutschland, {\"O}sterreich, Schweiz GmbH}, address = {Bernau}, year = {2012}, language = {de} } @incollection{GellerKluckRall2014, author = {Geller, Marius and Kluck, Norbert and Rall, Markus}, title = {Thermisch transiente Geb{\"a}udesimulation mittels CFD-Analyse unter Ber{\"u}cksichtigung verschiedener Baumaterialien und der Sonneneinstrahlung}, series = {Smart energy 2014 : Energiewende quer gedacht}, publisher = {H{\"u}lsbusch}, address = {Gl{\"u}ckstadt}, pages = {11}, year = {2014}, language = {de} } @incollection{Bandow2014, author = {Bandow, Gerhard}, title = {Instandhaltung}, series = {Jahrbuch Maintenance 2014}, publisher = {T. A. Cook}, address = {Berlin}, pages = {4}, year = {2014}, language = {de} } @incollection{KuhnW{\"o}tzelBandow2013, author = {Kuhn, Axel and W{\"o}tzel, Andr{\´e} and Bandow, Gerhard}, title = {Zukunft der Instandhaltung}, series = {Ver{\"a}nderung beherrschen : exzellente L{\"o}sungen aus Praxis und Wissenschaft ; 15. InstandhaltungsForum der Technischen Universit{\"a}t Dortmund [22. und 23. M{\"a}rz] 2013}, publisher = {Verlag Praxiswissen}, address = {Dortmund}, pages = {26}, year = {2013}, language = {de} } @incollection{GellerSchemmannKluck2012, author = {Geller, Marius and Schemmann, Christoph and Kluck, Norbert}, title = {Simulation of radial tilting pad journal bearings in consideration of fluid-structure-interaction and a cavitating multiphase flow}, series = {NAFEMS European conference multiphysics simulation 2012 : 16-17 October 2012, Frankfurt, Germany}, publisher = {NAFEMS GmbH}, address = {Bernau am Chiemsee}, pages = {6}, year = {2012}, language = {en} } @incollection{GellerSchemmann2012, author = {Geller, Marius and Schemmann, Christoph}, title = {Simulation von radialen Verdichterlaufr{\"a}dern}, series = {Tagungsband 10. Tagung "Technische Diagnostik 2012" : am 25./26. Oktober 2012 in Merseburg}, publisher = {Selbstverlag, An-Institut Fluid- und Pumpentechnik}, address = {Merseburg}, pages = {6}, year = {2012}, language = {de} } @incollection{BongertGellerPennekamp2010, author = {Bongert, Markus and Geller, Marius and Pennekamp, Werner}, title = {Numerical simulation of hemodynamic in the patient-specific aorta after aortic valve replacement based on MRI-data}, series = {Horizons in world cardiovascular research : Volume 1}, publisher = {Nova Biomedical Books}, address = {New York}, year = {2010}, language = {en} } @article{GellerKluckSchemmann2012, author = {Geller, Marius and Kluck, Norbert and Schemmann, Christoph}, title = {Simulation radialer Gleitlager}, series = {Economic engineering : das Wirtschaftsfachmagazin f{\"u}r Ingenieure}, number = {4}, issn = {1866-5004}, pages = {3}, year = {2012}, language = {de} } @article{GellerSchemmannKluck2012, author = {Geller, Marius and Schemmann, Christoph and Kluck, Norbert}, title = {Robustness evaluation and RDO of a centrifugal compressor impeller}, series = {RDO-Journal}, number = {1}, pages = {2}, year = {2012}, language = {en} } @article{StelandWeidauer2013, author = {Steland, A. and Weidauer, Sabine}, title = {Detection of stationary errors in multiple regressions with integrated regressors and cointegration}, series = {Sequential analysis}, volume = {32 (2013)}, number = {3}, issn = {0747-4946}, pages = {31}, year = {2013}, language = {en} } @article{GellerSchemmannKluck2014, author = {Geller, Marius and Schemmann, Christoph and Kluck, Norbert}, title = {Simulation of radial journal bearings using the FSI approach and a multi-phase model with integrated cavitation}, series = {Progress in computational fluid dynamics : an international journal}, volume = {14 (2014)}, number = {1}, issn = {1468-4349}, pages = {1}, year = {2014}, language = {en} } @article{GellerSchemmannKluck2012, author = {Geller, Marius and Schemmann, Christoph and Kluck, Norbert}, title = {Gleiten nur zum Schein}, series = {Antriebstechnik}, number = {11}, issn = {0722-8546}, pages = {4}, year = {2012}, language = {de} } @article{Bandow2013, author = {Bandow, Gerhard}, title = {Zwischen Wunsch und Wirklichkeit}, series = {Facility Managemeint}, volume = {19 (2013)}, number = {5}, issn = {0948-0048}, pages = {3}, year = {2013}, language = {de} } @article{BongertGellerStrauch2015, author = {Bongert, Markus and Geller, Marius and Strauch, J.}, title = {Untersuchung der Rezirkulation der Blutstr{\"o}mung im rechten Vorhof beim Einsatz einer VV-ECMO}, series = {CAME : Computer aided medical engineering}, volume = {6 (2015)}, number = {1}, issn = {2190-0698}, pages = {7}, year = {2015}, language = {de} } @article{BongertGellerPennekamp2014, author = {Bongert, Markus and Geller, Marius and Pennekamp, Werner}, title = {In silico model of a patient specific Aorta using 4D-MRI data simulating the hemodynamic effects of mechanical aortic valve}, series = {Biomedical engineering/Biomedizinische Technik}, volume = {59 (2014)}, number = {s1}, issn = {1862-278X}, pages = {19}, year = {2014}, language = {en} } @article{BongertGellerPennekamp2010, author = {Bongert, Markus and Geller, Marius and Pennekamp, Werner}, title = {Simulation der Einfl{\"u}sse von Klappenprothesen auf die Blutstr{\"o}mung mittels eines individuellen Modells der thorakalen Aorta}, series = {CAME : Computer aided medical engineering}, volume = {1 (2010)}, number = {1}, issn = {2190-0698}, pages = {6}, year = {2010}, language = {de} }