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21	Analýza napjatosti ojnice motoru se zahrnutím vlivu ojničních šroubů / Engine Conecting Rod Analysis Inluding Bolts Influence Cseh, Csaba January 2008 (has links) Csaba CSEH Engine Connecting Rod Analysis Including Bolts Influence DW, ITE, 2008, 75 pp, 88 fig. The aim of my diploma work is a stress analysis in the material of a connecting rod during a stationary engine regime. Dynamic forces from the connecting rod‘s motion and the forces acting on the bolts are included in the calculations. The whole stress analysis is based on a FEM designed application on a model, that was created in a CAD system package according to the real component.
22	Entstehungs- und Verwendungskontexte von 3D-CAD-Modellen in den Geschichtswissenschaften Münster, Sander January 2011 (has links) No description available. info:eu-repo/classification/ddc/330 ddc:330
23	Topologieoptimierung und CAD- Modellaufbereitung für den 3D-Druck Mahn, Uwe, Matthes, Jörg, Maronek, Anna 02 July 2018 (has links) Neuartige funktionsbedingte Bauteilgeometrien in geringen Stückzahlen lassen sich mit verschiedenen Methoden der additiv, generativen Fertigung, populärwissenschaftlich 3D- Druck genannt, effizient herstellen. Für den Konstrukteur solcher Bauteile bedeutet dies ebenfalls neuartige Methoden als bisher anzuwenden. Bauteilgeometrien, die hinsichtlich einer Zielgröße optimiert sind, können mit der Topologieoptimierung auf Basis eines FE- Modells rechnerisch ermittelt werden. Während die Topologieoptimierung schon seit längerem bekannt und etabliert ist, war die durchgängige Nutzung einer gemeinsamen Datenbasis häufig durch Hindernisse geprägt. Im vorliegenden Artikel werden die heutigen Möglichkeiten anhand des FE-Systems ANSYS aufgezeigt und hinsichtlich des effizienten praktischen Einsatzes bewertet. / Innovative function-related component geometries in small quantities can be produced efficiently with different methods of additive, generative manufacturing, in a popular science known as 3D printing. For the designer of such components it also means to use other methods as usual. Component geometries optimized regarding to a target size can be calculated using topology optimization based on a FE model. While topology optimization has been known and established for a long time, the consistent use of a common database was often characterized by obstacles. In this article today's possibilities are shown with the FE system ANSYS and evaluated with regard of the efficient practical use. info:eu-repo/classification/ddc/629 ddc:629 3D-Druck; Topologieoptimierung; ANSYS
24	Development and assessment of CFD models including a supplemental program code for analyzing buoyancy-driven flows through BWR fuel assemblies in SFP complete LOCA scenarios Artnak, Edward Joseph 31 January 2013 (has links) This work seeks to illustrate the potential benefits afforded by implementing aspects of fluid dynamics, especially the latest computational fluid dynamics (CFD) modeling approach, through numerical experimentation and the traditional discipline of physical experimentation to improve the calibration of the severe reactor accident analysis code, MELCOR, in one of several spent fuel pool (SFP) complete loss-of-coolant accident (LOCA) scenarios. While the scope of experimental work performed by Sandia National Laboratories (SNL) extends well beyond that which is reasonably addressed by our allotted resources and computational time in accordance with initial project allocations to complete the report, these simulated case trials produced a significant array of supplementary high-fidelity solutions and hydraulic flow-field data in support of SNL research objectives. Results contained herein show FLUENT CFD model representations of a 9x9 BWR fuel assembly in conditions corresponding to a complete loss-of-coolant accident scenario. In addition to the CFD model developments, a MATLAB based control-volume model was constructed to independently assess the 9x9 BWR fuel assembly under similar accident scenarios. The data produced from this work show that FLUENT CFD models are capable of resolving complex flow fields within a BWR fuel assembly in the realm of buoyancy-induced mass flow rates and that characteristic hydraulic parameters from such CFD simulations (or physical experiments) are reasonably employed in corresponding constitutive correlations for developing simplified numerical models of comparable solution accuracy. / text CFD CFD Model Buoyancy driven flow Buoyancy flow FLUENT FLUENT CFD SNL Sandia National Laboratories SFP LOCA Spent fuel pool loss of coolant accident SFP loss of coolant BWR fuel assembly CAD Model SolidWorks SFP Model SFP BWR fuel assembly NRC MATLAB MATLAB SFP Model 9x9 BWR fuel assembly MELCOR MELCOR SFP 250 million cells Hydraulic flow loss Loss coefficients Buoyancy flows MELCOR calibration Pressure loss BWR pressure loss SFP airflow SNL fuel assembly

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