Auflistung nach Schlagwort "Geometry"

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  • Quentin, Lorenz; Beermann, Rüdiger; Pösch, Andreas; Reithmeier, Eduard; Kästner, Markus (Bellingham, WA : S P I E - International Society for Optical Engineering, 2017)
    We present a fringe projection system to measure glowing hot hybrid components in between production processes. For this a high power green light projector, based on TI DLP technology, is used to create the highest possible ...
  • Denkena, Berend; Grove, Thilo; Krödel, Alexander (Amsterdam : Elsevier, 2016)
    Due to the rising number of car variants, the production systems in automobile industry are driven by a strong demand for flexible production processes. In the production of thin-walled workpieces, forming and cutting ...
  • Schwerdt, Lukas; Hauptmann, Thomas; Kunin, Artsem; Seume, Jörg R.; Wallaschek, Jörg; Wriggers, Peter; Scheidt, Lars Panning-von; Löhnert, Stefan (Amsterdam : Elsevier BV, 2017)
    This paper presents an integrated methodology for the analysis of operationally-used turbine blades, incorporating aerodynamic and multiple structural simulations. In jet engines, blade rubbing and erosion lead to deviations ...
  • Ley, P.-P.; Held, M.P.; Lachmayer, R. (Bellingham, WA : SPIE - International Society for Optical Engineering, 2018)
    Highly adaptive light sources such as LED arrays have been surpassing conventional light sources (halogen, xenon) for automotive applications. Individual LED arrangements within the array, high durability and low energy ...
  • Willer, Yannick; Hao, Liu; Balasa, Istvan; Ristau, Detlev (Bellingham, WA : S P I E - International Society for Optical Engineering, 2017)
    An established method for precise determination of optical absorption is the so called laser calorimetry. According to ISO 115511 laser calorimetry is preferred to other photothermal test methods, because of its capability ...
  • Boess, V.; Ammermann, C.; Niederwestberg, D.; Denkena, Berend (Amsterdam : Elsevier BV, 2012)
    A new method for analyzing the tool-workpiece-contact area in cutting processes is presented. To gain enhanced knowledge about tool-workpiece interaction, determination of chip thickness, contact length and resulting ...
  • Jacobsen, Karsten; Topan, H. (Hannover : International Society for Photogrammetry and Remote Sensing, 2015)
    An image triplet of Pleiades images covering the area of Zonguldak, Turkey has been investigated. The height to base relation of the first to the last image is just 1:4.5 and for the first and the second image 1:9. This ...
  • Peche, Aaron; Halisch, Matthias; Bogdan Tatomir, Alexandru; Sauter, Martin (Göttingen : Copernicus GmbH, 2016)
    In this case study, we present the implementation of a finite element method (FEM)-based numerical pore-scale model that is able to track and quantify the propagating fluid–fluid interfacial area on highly complex ...
  • Jacobsen, Karsten (Hannover : International Society for Photogrammetry and Remote Sensing, 2010)
    Digital aerial cameras have replaced analogue aerial cameras in several countries. The development for operational aerial photogrammetry started with the line scan camera ADS40, followed by Z/I Imaging DMC and Vexcel Imaging ...
  • Matthias, Steffen; Kästner, Markus; Reithmeier, Eduard (Bellingham, WA : S P I E - International Society for Optical Engineering, 2015)
    Sheet-bulk metal forming is a new production process capable of performing deep-drawing and massive forming steps in a single operation. However, due to the high forming forces of the forming process, continuous process ...
  • Schmidt, Alena; Rottensteiner, Franz; Sörgel, Uwe; Heipke, Christian (Hannover : International Society for Photogrammetry and Remote Sensing, 2014)
    We propose a method for the automatic extraction of fluvial networks in lidar data with the aim to obtain a connected network represented by the fluvial channels' skeleton. For that purpose we develop a two-step approach. ...
  • Matthias, Steffen; Kästner, Markus; Reithmeier, Eduard (Bellingham, WA : S P I E - International Society for Optical Engineering, 2016)
    Inspection of machine elements is an important task in production processes in order to ensure the quality of produced parts and to gather feedback for the continuous improvement process. A new measuring system is presented, ...
  • Behrens, Bernd-Arno; Bouguecha, Anas; Vucetic, Milan; Hübner, Sven; Yilkiran, Deniz; Jin, Yilin; Peshekhodov, Ilya (Les Ulis : EDP Sciences, 2015)
    The paper presents results of a FEA-based tool design optimisation for a clinching process with an open multiple-part die. The studied materials are the bake-hardening steel CR240BH (1.5 mm) on the punch side and the ...
  • Gorschenew, W.; Kaestner, M.; Reithmeier, Eduard (Bellingham, WA : S P I E - International Society for Optical Engineering, 2017)
    In many application areas such as object reconstruction or quality assurance, it is required to completely or partly measure the shape of an object or at least the cross section of the required object region. For complex ...
  • Thiessen, Tina; Mathis, Wolfgang (Bingley : Emerald Group Publishing Ltd., 2011)
    Purpose: This paper seeks to give an outline about the geometric concept of electronic circuits, where the jump behavior of nonlinear circuits is emphasized. Design/methodology/approach: A sketch of circuit theory in a ...
  • Šepelák, Vladimir; Bergmann, Ingo; Indris, Sylvio; Feldhoff, Armin; Hahn, Horst; Becker, Klaus-Dieter; Grey, Clare P.; Heitjans, Paul (Cambridge : Royal Society of Chemistry, 2011)
    The response of the local structure of various types of spinel aluminates, ZnAl2O4 (normal spinel), MgAl2O4 (partly inverse spinel), and Li0.5Al2.5O4 (fully inverse spinel), to mechanical action through high-energy milling ...
  • Kruse, Christian N.; Wolf, Martin; Schinke, Carsten; Hinken, David; Brendel, Rolf; Bothe, Karsten (London : Elsevier Ltd., 2017)
    The fill factor determined from a measured current-voltage characteristic of a bare solar cell depends on the number and positions of the electrical contacting probes. Nine different geometries for contacting the front ...
  • Zorndt, Anna C.; Goseberg, Nils; Schlurmann, Torsten (Reston : American Society of Civil Engineers (ASCE), 2014)
    The hydrodynamics of estuaries are forced by the tides from the open sea and the river runoff from the catchment area. The hinterland is often low-lying and densely populated and must therefore be protected by dikes. ...
  • Urbano, Jose; Golowin, Andrej; Löhnert, Stefan; Bestle, Dieter (Les Ulis : EDP Sciences, 2018)
    Currently, prediction of crack initiation by corrosion pits is only possible by assuming regular geometrical shapes, such as semi-spheres or semi-ellipsoids. Moreover, typical fatigue life diagrams associate the crack ...
  • Schlobohm, Jochen; Li, Yinan; Pösch, Andreas; Langmann, Benjamin; Kästner, Markus; Reithmeier, Eduard (Amsterdam : Elsevier, 2014)
    The inspection of capital goods with complex geometries is a challenging task due to the limited maneuvering and measuring space available. We developed a set of optical measurement systems for the inline inspection of ...