@article{GebhardtSchmidt2002, author = {Gebhardt, Andreas and Schmidt, Frank-Michael}, title = {Practical experiences with making and finishing of coloured models using 3D printing}, year = {2002}, language = {en} } @book{EngelnMuellgesUhlig1996, author = {Engeln-M{\"u}llges, Gisela and Uhlig, Frank}, title = {Numeric Algorithms with Fortran}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-60529-0}, pages = {XXII, 602 S. : Ill., graph. Darst. + 1 CD-ROM}, year = {1996}, language = {en} } @book{EngelnMuellgesUhlig1996, author = {Engeln-M{\"u}llges, Gisela and Uhlig, Frank}, title = {Numerical algorithms with C}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-60530-0}, pages = {XXII, 596 S. : graph. Darst. + 1 CD-ROM}, year = {1996}, language = {en} } @article{GebhardtSchmidtHoetteretal.2010, author = {Gebhardt, Andreas and Schmidt, Frank-Michael and H{\"o}tter, Jan-Steffen and Sokalla, Wolfgang and Sokalla, Patrick}, title = {Additive Manufacturing by selective laser melting the realizer desktop machine and its application for the dental industry}, series = {Physics Procedia}, volume = {5}, journal = {Physics Procedia}, number = {2}, isbn = {1875-3892}, pages = {543 -- 549}, year = {2010}, language = {en} } @inproceedings{DilgerMundDiltheyetal.2003, author = {Dilger, Klaus and Mund, Frank and Dilthey, Ulrich and Schleser, Markus and Raupach, Michael and Walk-Lauffer, Bernd}, title = {Einsatz einer polymeren Phase zur Verbundverbesserung}, series = {Textile reinforced structures : proceedings of the 2nd Colloquium on Textile Reinforced Structures (CTRS2), Dresden, Germany, 29.9. - 1.10.2003}, booktitle = {Textile reinforced structures : proceedings of the 2nd Colloquium on Textile Reinforced Structures (CTRS2), Dresden, Germany, 29.9. - 1.10.2003}, editor = {Curbach, Manfred}, publisher = {Techn. Univ.}, address = {Dresden}, organization = {Colloquium on Textile Reinforced Structures <2, 2003, Dresden>}, isbn = {3-86005-386-8}, pages = {133 -- 144}, year = {2003}, language = {de} } @inproceedings{RoehrigGrossmannKuenemundetal.2008, author = {R{\"o}hrig, Christof and Großmann, Uwe and K{\"u}nemund, Frank and Gansemer, Sebastian and Sch{\"u}rmann, Volker and Wollert, J{\"o}rg}, title = {Positionsbestimmung mittels Funktechnologien - Vergleich von Verfahren und Technologien mit exemplarischer Demonstration}, series = {Wireless-Technologies-Kongress 2008 : von der Technologie zur Anwendung / Hrsg. J{\"o}rg F. Wollert}, booktitle = {Wireless-Technologies-Kongress 2008 : von der Technologie zur Anwendung / Hrsg. J{\"o}rg F. Wollert}, publisher = {AKA}, address = {Heidelberg}, isbn = {978-3-89838-608-1}, pages = {337 -- 348}, year = {2008}, language = {de} } @inproceedings{GebhardtSchmidt2005, author = {Gebhardt, Andreas and Schmidt, Frank-Michael}, title = {Farbige Prototypen als Werkzeug f{\"u}r den Konstrukteur}, year = {2005}, abstract = {Physische Prototypen, also Anschauungs- und Funktionsmodelle nach den generativen oder Rapid Prototyping (RP) Verfahren haben sich in diesem Zusammenhang vor allem als Hilfsmittel zur effektiven Kommunikation und zur Evaluierung von Produkteigenschaften einen festen Platz in der Produktentstehung erworben. Die positiven Effekte der etablierten RP Verfahren sind unumstritten. Einfachere, schnellere und wirtschaftlichere Maschinen (Prototyper, Fabrikator), vor allem auch f{\"u}r die B{\"u}roumgebung, geben neue Impulse im Sinne der Optimierung der heutigen Verfahren. Eine neue Dimension verspricht die Option „Farbe" der bisher fast ausschließlich monochromen Modelle. Ist Farbe nur „nice to have" oder welchen Effekt haben farbige Modelle als Werkzeug von Konstrukteuren und Produktenwicklern? Welche Perspektiven bietet „Farbe" dar{\"u}ber hinaus?}, subject = {Prototyping}, language = {de} } @article{GebhardtBrueckerSchmidt2005, author = {Gebhardt, Andreas and Br{\"u}cker, Christoph and Schmidt, Frank-Michael}, title = {RP gest{\"u}tzte Herstellung komplexer transparenter Hohlr{\"a}ume f{\"u}r die Str{\"o}mungsanalyse}, year = {2005}, abstract = {Die Berechnung der Durchstr{\"o}mung von Bauteilen ist gegen{\"u}ber derjenigen von umstr{\"o}mten Bauteilen deutlich im Hintertreffen. Das liegt vor allem an der fehlenden Verf{\"u}gbarkeit geeigneter optisch transparenter Modellkan{\"a}le f{\"u}r die experimentelle Analyse. Der Beitrag stellt ein Verfahren zur Herstellung transparenter durchstr{\"o}mter Geometrien auf der Basis generativ gefertigter Urmodelle vor. Damit k{\"o}nnen beliebig komplexe Innenstr{\"o}mungen optisch analysiert werden. Anhand von zwei Beispielen aus der Medizin, der Modellierung der oberen Atemwege und des Bronchialbaums, wird das Verfahren vorgef{\"u}hrt. Der generative Bauprozess mittels 3D-Printing wird beschrieben und die Abformung in transparentem Silikon gezeigt. Schließlich werden beispielhaft der Messaufbau und Ergebnisse der Anwendung vorgestellt. Das Verfahren bildet die Grundlage f{\"u}r die Analyse und Berechnung komplexer Innenstr{\"o}mungen und tr{\"a}gt somit zur Verbesserung zahlreicher technischer Anwendungen bei.}, subject = {Rapid prototyping}, language = {de} } @inproceedings{NakagawaMichauxKallweitetal.2015, author = {Nakagawa, Masaki and Michaux, Frank and Kallweit, Stephan and Maeda, Kazuhiro}, title = {Unsteady flow measurements in the wake behind a wind-tunnel car model by using high-speed planar PIV}, series = {11TH International Symposium on Particle Image Velocimetry - PIV15 Santa Barbara, California, September 14-16, 2015}, booktitle = {11TH International Symposium on Particle Image Velocimetry - PIV15 Santa Barbara, California, September 14-16, 2015}, pages = {21 S.}, year = {2015}, abstract = {This study investigates unsteady characteristics of the wake behind a 28\%-scale car model in a wind tunnel using highspeed planar particle image velocimetry (PIV). The car model is based on a hatchback passenger car that is known to have relatively high fluctuations in its aerodynamic loads. This study primarily focuses on the lateral motion of the flow on the horizontal plane to determine the effect of the flow motion on the straight-line stability and the initial steering response of the actual car on a track. This paper first compares the flow fields in the wake behind the above mentioned model obtained using conventional and high-speed planar PIV, with sampling frequencies of 8 Hz and 1 kHz, respectively. Large asymmetrically coherent flow structures, which fluctuate at frequencies below 2 Hz, are observed in the results of highspeed PIV measurements, whereas conventional PIV is unable to capture these features of the flow owing to aliasing. This flow pattern with a laterally swaying motion is represented by opposite signs of cross-correlation coefficients of streamwise velocity fluctuations for the two sides of the car model. Effects of two aerodynamic devices that are known to reduce the fluctuation levels of the aerodynamic loads are then extensively investigated. The correlation analyses reveal that these devices indeed reduce the fluctuation levels of the flow and the correlation values around the rear combination-lamp, but it is found that the effects of these devices are different around the c-pillar.}, language = {en} } @inproceedings{NakagawaKallweitMichauxetal.2016, author = {Nakagawa, Masaki and Kallweit, Stephan and Michaux, Frank and Hojo, Teppei}, title = {Typical Velocity Fields and Vortical Structures around a Formula One Car, based on Experimental Investigations using Particle Image Velocimetry}, series = {SAE International Journal of Passenger Cars - Mechanical Systems}, booktitle = {SAE International Journal of Passenger Cars - Mechanical Systems}, issn = {1946-4002}, doi = {10.4271/2016-01-1611}, pages = {18 S.}, year = {2016}, language = {en} }