Dissertations / Theses: 'ANSYS'

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Waidmann, Axel. "Topologieoptimierung mit Ansys AIM und Ansys Workbench." Technische Universität Chemnitz, 2018. https://monarch.qucosa.de/id/qucosa%3A21542.

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Durch die neue Schweißfunktionalität in Creo 4, welche es ermöglicht Schweißnähte als Volumengeometrie zu modellieren, entstehen viele neue Möglichkeiten zur Berechnung der Spannungen innerhalb der Schweißnähte. Damit einhergehend entstehen neue Möglichkeiten zur Berechnung und Evaluierung dieser Schweißnähte nach den Richtlinien der FKM. Die Berechnung anhand der FKM-Richtlinien soll hierbei anhand der zwei Simulationstools Creo Simulate und Ansys Simulation dargestellt werden.

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Vidal, Marc. "ANSYS AIM." Universitätsbibliothek Chemnitz, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-226188.

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Für jeden am Entwicklungsprozess Beteiligten ist es wichtig möglichst früh das Konzept zu verstehen und bewerten zu können. Die Anforderungen an eine Simulationssoftware hierfür sind die elegante Einbindung in die CAD Umgebung, die einfache Handhabung und natürlich die Verfügbarkeit einer genauen Lösung von Magnetik, Strömung, Festigkeit und Kopplungen. ANSYS AIM erfüllt genau diese Wünsche. ANSYS AIM basiert auf den validierten Solvern von ANSYS Mechanical, ANSYS CFD und ANSYS Maxwell und bietet in einer einheitlichen Umgebung einen leichten und modernen Einstieg in die Multiphysicssimulation. Das ist der Schlüssel, um während der Konstruktion die Produkteigenschaften zu verstehen und optimieren zu können. Im Rahmen des Vortrages verschaffen wir uns einen Überblick über die Breite der Anwendungen: - Bewertung von Kühlkonzepten - Bestimmung des Druckabfalls in Armaturen - Festigkeitsbewertung in Baugruppen - Thermische Auslegung stromdurchflossener Bauteile - Elektromagnetische und thermische Beurteilung von Spulen http://www.cadfem.de/produkte/ansys/ansys-aim.html

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Panayirci, Huseyin Murat. "Structural Optimization Using Ansys." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/2/12607075/index.pdf.

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This study describes the process of performing structural optimization using ANSYS. In the first part, the general concepts in optimization and optimization algorithms for different type of optimization problems are covered. Also finite element method is introduced briefly in this part. In the second part, important definitions in structural optimization are mentioned. Then the optimization methods available in ANSYS are explained with their theories. Necessary steps to perform optimization with ANSYS are described at the end of this part. In the next part, sample problems found from scientific papers are solved using ANSYS and the results are compared. At the end of the study, the results obtained from the example problems are discussed whether they came out as expected or not. Also conclusions are made about solving optimization problems and performing structural optimization with ANSYS.

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Hoffmann, Sebastian. "ANSYS Simulation und Additive Fertigung." Technische Universität Chemnitz, 2018. https://monarch.qucosa.de/id/qucosa%3A21503.

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Die additiven Fertigungsverfahren eröffnen durch ihre größere Designfreiheit viele Möglichkeiten um neues Leichtbaupotential in der Bauteilauslegung zu erschließen. Dabei wächst das Bewusstsein der Ingenieure für die Synergien der Physik- getriebenen Topologieoptimierung mit den freien Gestaltungsmöglichkeiten der additiven Fertigung. Diverse Anwendungsbeispiele aus verschiedenen Industriezweigen zeigen, dass dieses Potential branchenübergreifend einsetzbar ist. Durch Topologieoptimierung alleine wird das Potential der Additiven Fertigung jedoch noch nicht ausgeschöpft. Zusätzliches großes Leichtbaupotential bietet auch die Verwendung von gleichmäßigen oder adaptiven Gitterstrukturen. Durch diese kann eine Gewichtsreduktion am Bauteil realisiert werden ohne das ursprüngliche Design optisch zu verändern. Für die Validierung dieser hochkomplexen Gitterstrukturen kann heute dank der neuen Technologie ANSYS Discovery Live auf ein aufwendiges Vernetzen verzichtet und damit eine Bewertung des Designs ‚on the fly‘ erreicht werden. Des Weiteren ermöglichen neue Werkzeuge in ANSYS eine a priori Bewertung von prozessbedingten Formabweichungen der Geometrie bei additiver Fertigung. Verformungen während des Bauprozesses können zu einem Abbruch desselben führen, während Verformungen und Eigenspannungen im fertigen Bauteil zu Abweichungen von der gewünschten Geometrie und Funktionalität führen können. Hier hilft die AF-Prozesssimulation das Verständnis der Prozesse zu erweitern und entsprechende Gegenmaßnahmen zu treffen. In diesem Vortrag werden die genannten Aspekte an praktischen Beispielen gezeigt und diskutiert.

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Schüler, Heiko. "Festigkeitsnachweis mit FKM inside ANSYS." Technische Universität Chemnitz, 2019. https://monarch.qucosa.de/id/qucosa%3A34098.

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Die FKM-Richtlinie dient dem Festigkeitsnachweis im Maschinenbau und verwandten Bereichen. Ihre Anwendung kann immer dann vereinbart werden, wenn keine spezielle Norm anzuwenden ist. Sie beschreibt die Nachweisführung für statische und zyklische Lasten an Bauteilen aus Stahl und Aluminiumwerkstoffen. Der Festigkeitsnachweis nach FKM-Richtlinie läuft stets nach dem gleichen Schema ab: -> Ermittlung der Werkstoffkennwerte -> Festlegung der Sicherheitsfaktoren -> Ermittlung der Beanspruchung -> Ermittlung des Auslastungsgrades Mit „FKM inside ANSYS“ steht dem ANSYS-Anwender ein Werkzeug zur Verfügung, das bei der richtlinienkonformen Nachweisführung unterstützt. Dabei erfolgt der Nachweis nicht geschweißter Volumenbauteile mit örtlichen Spannungen und der Nachweis geschweißter Volumenbauteile nach dem Strukturspannungskonzept. Insbesondere für zyklische Belastungen ist das Auffinden der Nachweisstellen – also der maximal beanspruchten Positionen – nicht immer trivial. Hier hilft „FKM inside ANSYS“, durch vollflächige Visualisierung des Auslastungsgrades auf den zu untersuchenden Bauteilen diese Positionen sicher zu bestimmen und zu bewerten. Es ergeben sich gegenüber einem manuellen Nachweis folgende Vorteile: -> Schnelle und einfache Definition der Nachweisparameter -> Schnelle Durchführung von Parameterstudien -> Schnelles und sicheres Auffinden der maximal beanspruchten Stellen -> Erleichterte Ergebnisinterpretation durch Visualisierung des Auslastungsgrades -> Automatische Berichterstellung an den Nachweispositionen

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Waidmann, Axel. "Kopplung zwischen Creo Parametric und ANSYS." Technische Universität Chemnitz, 2019. https://monarch.qucosa.de/id/qucosa%3A34102.

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Die Zusammenarbeit zwischen Creo Parametric und ANSYS wird durch die Nutzung der ANSYS – Creo Schnittstelle deutlich erleichtert. Diese überträgt nicht nur die reine Geometrie, sondern bietet zudem die Möglichkeit auch Parameter, Named Selections und Bemaßungen zu übergeben. Damit wird die Zusammenarbeit deutlich erleichtert und effektiver.

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Anderle, Milan. "Vývoj modelu kalcinace pro ANSYS Fluent." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-367526.

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The aim of the diploma thesis was creating a decarbonisation model of lime, implementation the model into CFD tool ANSYS Fluent and to test the decarbonisation model in a model of a real reactor. The required model was based on assumptions for a Shrinking Core Model (SCM). The main objective of this work was the non-catalytic conversion of substances and the search for the most used mathematical models for calcination. The CFD calculation, the sensitivity analysis and the Fluente parametric study were used. Data on the composition of gas flow, temperature, pressure and mass flow of limestone particles were selected for input variables. The particle model called Multiple Surface Reactions (MSR), which is a standard part of Fluent, was used at first. Subsequently, a UDF which was based on the SCM assumptions was written in the programming language C. The results of the CFD calculation were compared with the experimental values from the dissertation. It has been found that the MSR is sufficiently precise for calculation purposes but neglects the internal diffusion of CO2 through the CaO layer which forms behind the reaction front during calcination. It was found that it is possible to solve the flow with ongoing calcination without the need to know the parameters of the Arrhenian equation if the UDF is used. The created UDF incorporates the influence of intraparticular CO2 diffusion on the overall reaction rate.

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Steinbeck-Behrens, Cord. "ANSYS® AIMTM Produktsimulation für jeden Ingenieur." Universitätsbibliothek Chemnitz, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-206783.

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ANSYS ® AIMTM verbindet die Simulation mechanischer, strömungsmechanischer, thermischer und elektrischer Eigenschaften in einer neuen, intuitiven Oberfläche und einem über alle physikalischen Disziplinen gleichen Arbeitsprozess. Auf diese Weise kann die volle Breite physikalischer Fragestellungen nun auch direkt in der Produktentwicklung durch Konstrukteure und Entwicklungsingenieure genutzt werden, um ein ganzheitliches Produktverständnis zu erzielen. Wie dieser Zugang zur Produktsimulation für jeden Ingenieur mit ANSYS ® AIMTM erreicht wird, stellt der Vortrag unter folgenden Themenüberschriften heraus: - Paradigmenwechsel in der Produktentwicklung - Integriert Funktionen: • Multiphysics Simulation • Variantenanalysen • Geometriemodellierung • Prozessautomatisierung - ANSYS® AIMTM live in der Anwendung Das Produkt ANSYS® AIMTM ist seit Anfang 2015 als kommerzielles Produkt verfügbar. In den Versionen für Forschung und Lehre wird den Zugang mit der nächsten Softwareversion ermöglicht. Daher wird die Vorgehensweise in der Live Vorführung auch vielen langjährigen ANSYS ® Anwendenden neue Eindrücke geben. Im letzten Jahr wurde von CADFEM auf der SAXSIM Tagung ein allgemeiner Einblick in Möglichkeiten der gekoppelten Simulation mit ANSYS Workbench gegeben. Mittlerweile sind viele der dort genannten Anwendungsbeispiele einfacher in ANSYS ® AIMTM lösbar.

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Knop, Nathaniel Michael. "Thermal analysis of a fireplace using ANSYS." [Ames, Iowa : Iowa State University], 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1464357.

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Partl, Tomáš. "Využití programu ANSYS Workbench v silnoproudé elektrotechnice." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217897.

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In its first part this Master´s thesis describes creation of electronic database design in Raster Design 2009 program as an effective form of storage only for paper documentation. The second part of my thesis provides calculation of primary and secondary winding of current instrument transformer of over-current conduit through the winding and influence on other parts of transformer i.e. error of transformer or increasing magnetic induction core and others. The last third part is focusing on usage of ANSYS Workbench in power electrical engineering. The thesis shows specific example of warming of current instrument transformer (thermal analysis) and comparing the results with theoretical (calculated) values.

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Viszlay, Viliam. "Ohýbaná tělesa: Numerická podpora v software ANSYS." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240183.

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The aim of the thesis is the investigation of fracture-mechanics parameters on specimens made of quasi-brittle materials. The principles of two-parameter fracture mechanics are used. Couple of numerical simulations were done and their outputs are used for two main analysed specimen geometries. For simulations the finite element method software ANSYS is used. In the first part, the thesis focuses on bended specimens. The influence of different geometric parameters on fracture mechanics behaviour of cracked specimen is investigated. For model calibration the outputs of other authors are used. In the second part the specimens for modified compact-tension test (CT test) are analysed. Similar to the first part, the influence of geometric parameters of the specimen (in this case, the specimen size) on fracture mechanics parameters were investigated. The modified CT test was derived from CT test which is commonly used for metal materials testing as the suitable geometry for cement-based composite materials testing. The outputs of both parts are calibration polynomials, which are expressions obtained for different specimen geometries, giving the value of fracture mechanics parameter as the function of specimen geometry. As the example, calibration curves are used to obtain fracture toughness of tested material using the outputs from recent experiment.

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Simeitis, Sven D. "Vergleich von Simulationen mittels Pro/MECHANICA und ANSYS." Universitätsbibliothek Chemnitz, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-68443.

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Gegenstand dieser Arbeit ist es, Simulationsergebnisse von Pro/MECHANICA und ANSYS zu vergleichen, um somit einen Hinweis auf die Qualität der Berechnungsergebnisse von integrierten FEM-Systemen zu bekommen. Als Beispiele dienen verschiedene Bauteile aus dem Gebiet der Strukturmechanik (linear-elastischer Bereich), welche mit Pro/MECHANICA und ANSYS modelliert und berechnet werden. Abschließend erfolgt eine Gegenüberstellung der Daten aus FEM und analytischer Rechnung, sowie eine Bewertung der Ergebnisse.

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Kučera, Petr. "Teplotní analýza asynchronního stroje pomocí programu Ansys Workbench." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219756.

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The aim of the master thesis is introduction with software Ansys Workbench and calculate the thermal field arroud the induction machine. After introduction with the software was bulit model of induction machine and there were simulated various thermal calculations at operating conditions. They were measured on a real induction machine in laboratories.

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Horálek, Lukáš. "Výpočet chlazení asynchronního stroje pomocí programu Ansys CFX." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-318176.

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The issue this master’s thesis discusses the cooling synchronous machines. Specifically, the calculation of cooling induction motor using the finite volume method. Using Autodesk Inventor will create a 3D model of a real electric machine, ie asynchronous motor and then ANSYS WORKBENCH perform system analysis CFX, based on the finite volume method. Furthermore, we realize the air speed measurements on a particular machine and the individual results obtained by measuring and calculating the actual compared with each other. The master’s thesis also deals marginally with closely related to it. For the same machine model, we apply the calculation of the temperature fields using the finite volume method and them perform a thermal analysis. Next, we can carry out the measurement of the temperature on the motor itself and calculate the measured values and the measured compare each other.

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Beisitzer, Stephan, Michael Scheffler, and Michael Beitelschmidt. "Rechnerischer Festigkeitsnachweis eines Präzessionsdynamos nach FKM-Richtlinie in ANSYS." Universitätsbibliothek Chemnitz, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-142178.

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Der mit flüssigem Natrium gefüllte Druckbehälter eines Präzessionsexperimentes unterliegt im Betrieb einer Vielzahl an Belastungen. Neben den aus der Rotation und Präzession resultierenden Fliehkräften und dem gyroskopischen Moment müssen ebenfalls die fertigungsbedingten Unwuchten sowie die Fluid-Struktur-Interaktion berücksichtigt werden. Darüber hinaus stellen die bei der Erwärmung bzw. Abkühlung auftretenden thermischen Spannungen eine wesentliche Beanspruchung dar. Es wird ein Algorithmus vorgestellt, der es ermöglicht, alle diese transienten und winkelabhängigen Lasten bei minimalem Rechenaufwand in den Berechnungsprozess einzubeziehen und die für den statischen und zyklischen Festigkeitsnachweis nach FKM-Richtlinie maßgeblichen Beanspruchungen zu identifizieren. Dies ermöglicht die vollflächige Berechnung des Auslastungsgrades in ANSYS Workbench.

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Жулёва, И. А. "Моделирование деформируемых щелевых уплотнений с использованием програмного комплекса ANSYS." Thesis, Сумский государственный университет, 2015. http://essuir.sumdu.edu.ua/handle/123456789/39797.

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В высоконапорных центробежных машинах возникают заметные деформации элементов щелевых уплотнений под действием больших перепадов давления. Поскольку протечки и динамические характеристики зависят от формы зазора, предпринимались попытки создать такие конструкции, деформации которых снижали бы протечки и улучшали бы динамические качества кольцевых дросселей.

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Сябрук, Я. А., and Виктор Петрович Шайда. "Моделирование тягового двигателя постоянного тока в пакете ANSYS/MAXWELL." Thesis, НТУ "ХПИ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/26493.

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Acharya, Rutvika. "Investigation of Differences in Ansys Solvers CFX and Fluent." Thesis, KTH, Mekanik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-203937.

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This thesis aims at presenting Computational Fluid Dynamics studies conducted on an axisymmetric model of the Siemens SGT-800 burner using Ansys Fluent, Ansys CFX and Ansys ICEM. The goal is to perform a mesh study and turbulence model study for isothermal flow. The result will show the differences observed while using the two solvers by Ansys, Fluent and CFX. Two different meshes, A, coarse and B, optimal have been used for the mesh study. This will reveal the mesh dependency of the different parameters and if any differences are observed between the solver’s convergence and mesh independency performance. To further validate the mesh independency, a simplified test case is simulated for turbulent flow for 32 different cases testing the numerical algorithms and spatial discretization available in Ansys Fluent and finding the optimal method to achieve convergence and reliable results. Turbulence model study has been performed where k-ε, k-ω and k-ω Shear Stress Transport (SST) model have been simulated and the results between solvers and models are compared to see if the solvers’ way of handling the different models varies.Studies from this thesis suggest that both solvers implement the turbulence models differently. Out of the three models compared, k-ω SST is the model with least differences between solvers. The solution looks alike and therefore it could be suggested to use this model, whenever possible, for future studies when both solvers are used. For the models k-ε and k-ω significant differences were found between the two solvers when comparing velocity, pressure and turbulence kinetic energy. Different reasons for its occurrence are discussed in the thesis and also attempts have been made to rule out few of the reasons to narrow down the possible causes. One of the goals of the thesis was to also discuss the differences in user-interface and solver capabilities which have been presented in the conclusions and discussions section of the report. Questions that still remain unanswered after the thesis are why these differences are present between solvers and which of the solvers’ results are more reliable when these differences have been found.

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CARO, DIAZ FREDDY SANTIAGO. "ANALYSIS OF FLUID STRUCTURE-INTERACTION (FSI) PROBLEMS IN ANSYS." Thesis, Faculty of Engineering and Information Technologies. School of Aerospace, Mechanical & Mechatronic Engineering, 2015. https://hdl.handle.net/2123/30023.

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The Fluid-Structure Interaction problems occur in many natural phenomena and man-made engineering systems, this fact has promoted the research in this area. The research in this field of study is implementing two different methodologies. The first one is the use of commercial programs that have developed FSI capabilities such as Ansys or ADINA. The second methodology is the development of computational codes to solve specific problems of FSI analysis. This Project in particular focuses in the evaluation of Ansys-Fluent to perform FSI simulations. Two aeroelastic cases were simulated in Ansys, they were: the delta wing, and the Onera M6 wing. The delta wing simulation is subsonic and its structure is a simple flat plate made out of aluminum. The Onera M6 wing simulation is transonic and its structure has multiple components that are made out of an orthotropic material. The FSI simulations of the delta wing were validated through comparison with experimental data reported in literature. A turbulence analysis and a mesh independence analysis were carried out as well. The validation showed a limited capability to replicate the results that were obtained in the experiment. The FSI simulations of the Onera M6 wing were validated through comparison with a simulation that was carried out in Patran-Nastran. In addition, a computational fluid dynamics (CFD) simulation in steady state was performed in Ansys in order to establish the bases of the configuration that was implemented in the FSI simulations in Ansys. The validation showed that Ansys-Fluent is able to reproduce the results obtained in Patran-Nastran.

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Záškodný, Jiří. "Model víceotáčkového motoru a simulace v programu ANSYS Maxwell." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377332.

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This master thesis deals with calculations and simulations of multi-speed induction motors. In the first part, basic principle of these machines is described. Next, there are given three examples of pole-changing stator windings and their properties are analyzed (winding factors, magnetomotive force). Main part includes simulations and measuring of the specific motor, which is produced by company Siemens Mohelnice. This is the motor with 2/1 pole-changing in Y/YY connection. First, influence of skewed rotor slots on current and torque is analyzed. Next, parametres of motor from simulations are given and these results are compared to measured values.

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Sedláčková, Petra. "Využití prostředí ANSYS Workbench pro teplotní výpočty elektrických strojů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218803.

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Thermal analysis of electric machine is one of the key steps in design procedure. Traditionally, thermal calculations are done by analytical method, mostly based on equivalent electrical circuit, where thermal quantities are replaced by equivalent electrical quantities. These methods employ so-called electro thermal analogy. Different approach is to use Finite Element Method, which is the main goal of this thesis. First part of the thesis is devoted to description of CAD system Autodesk Inventor, which is modern parametric CAD for modelling of virtual prototypes. This system is then used for creation of three dimensional model of brushless DC machine. Second part is focused on thermal calculations in Ansys Workbench environment. Model of brushless DC machine created in Inventor is transferred into Ansys Workbench and thermal analysis is carried out.

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Juráň, Martin. "Výpočet stropní konstrukce metodou konečných prvků pomocí programu ANSYS." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225443.

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Create finite elements model ( FEM ) for solution direct stress of bend by ANSYS. Analyze calculated stress and deflextion, compare with results by simple manually-operated calculation. Extremes of these quantities compare with results by encoded rule.

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Obršlík, Petr. "Modelování a statická analýza stropní konstrukce v programu ANSYS." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226805.

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This thesis mainly deals with modeling and static analysis of the ceiling structure in the basic environment of ANSYS. The first part is focused on verifying correctness of the model most stressed parts of the structure with a simple hand-static calculation by the process of stress on a continuous beam. The main part is devoted to modeling composite structure, element types, specifying loads and boundary conditions by ANSYS FEM program. In the end, there are the results of stress and deflection presented, and the structure is evaluated at the ultimate limit state and serviceability limit state.

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Samuelsson, Joakim. "Rotor dynamic analysis of 3D-modeled gas turbinerotor in Ansys." Thesis, Solid Mechanics, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-19071.

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The world we are living in today is pushing the technology harder and harder. The products need to get better and today they also need to be friendlier to the environment. To get better products we need better analysis tools to optimize them and to get closer to the limit what the material can withstand. Siemens industrial Turbomachinery AB, at which thesis work is made, is constructing gas and steam turbines. Gas and steam turbines are important in producing power and electricity. Electricity is our most important invention we have and most of the people are just taking electricity for granted. One way to produce electricity is to use a gas turbine which is connected to a generator and by combing the turbine with a steam turbine the efficiency can be up to 60 %. That is not good enough and everybody want to get better efficiency for the turbines, meaning less fuel consumption and less impact on the environment.

The purpose of this thesis work is to analyze a tool for rotor dynamics calculations. Rotor dynamics is important in designing a gas turbine rotor because bad dynamics can easily lead to disaster. Ansys Classic version 11 is the analyze program that is going to be evaluated for the rotor dynamic applications. Nowadays rotor dynamics is done with beam elements i.e. 1D models, but in this thesis work the beam elementsare going to be changed to solid elements. With solid elements a 3D model can be built and thanks to that more complex calculations and simulations can be made. For example, with a 3D model 3D effects can be shown and e.g. simulations with blade loss can be done. 3D effects are not any problem today but in the future the gas turbines have to get better and maybe also the rotational speed will increase.

Ansys isn’t working perfectly yet, there are some problems. However Ansys have a good potential to be an additional tool for calculations of rotor dynamics, because more complex calculations and simulations can be done. More knowledge and time needs to form the rules to modeled a rotor and developing the analysis methods. Today the calculated lateral critical speeds are lower than the ones obtained from the in-house program Ardas version 2.9.3 which is used in Siemens Industrial Turbomachinery AB today. The difference between the programs are not so big for the four first lateral modes, only 3-8 %, but the next three lateral modes have a difference of 10-20 %. The torsion frequencies from Ansys are the same as the ones from Ardas, when the Solid186 elements are used to model the blades.

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Altstadt, Eberhard, and Thomas Mössner. "Extension of the ANSYS® creep and damage simulation capabilities." Forschungszentrum Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-29940.

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The user programmable features (UPF) of the finite element code ANSYS® are used to generate a customized ANSYS-executable including a more general creep behaviour of materials and a damage module. The numerical approach for the creep behaviour is not restricted to a single creep law (e.g. strain hardening model) with parameters evaluated from a limited stress and temperature range. Instead of this strain rate - strain relations can be read from external creep data files for different temperature and stress levels. The damage module accumulates a damage measure based on the creep strain increment and plastic strain increment of the load step and the current fracture strains for creep and plasticity (depending on temperature and stress level). If the damage measure of an element exceeds a critical value this element is deactivated. Examples are given for illustration and verification of the new program modules.

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Wee, Hong Chuan. "Aerodynamic analysis of a canard missile configuration using ANSYS-CFX." Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/10707.

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Approved for public release, distribution unlimited--Cover.
This study used the Computational Fluid Dynamics code, ANSYS-CFX to predict the static aerodynamic characteristics of a canard-wing missile configuration with a hemispherical nose, triangular wedge canards and fixed trapezoidal wings. The study was conducted for Mach numbers of 0.2, 0.8 and 1.2. The results were compared against experimental data from actual wind tunnel tests and data from a semi-empirical method, AP09. The ANSYS-CFX results showed good agreement for CN, CM, and CL but less agreement for CA when compared to the experimental results. The AP09 results also showed good agreement for CN, CM, and CL but also showed less agreement for CA.

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Maia, Filipe Martim Esteves. "Análise paramétrica e optimização estrutural utilizando o software comercial ANSYS." Master's thesis, FCT-UNL, 2011. http://hdl.handle.net/10362/6679.

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Altstadt, Eberhard, and Thomas Mössner. "Extension of the ANSYS® creep and damage simulation capabilities." Forschungszentrum Rossendorf, 2000. https://hzdr.qucosa.de/id/qucosa%3A21821.

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The user programmable features (UPF) of the finite element code ANSYS® are used to generate a customized ANSYS-executable including a more general creep behaviour of materials and a damage module. The numerical approach for the creep behaviour is not restricted to a single creep law (e.g. strain hardening model) with parameters evaluated from a limited stress and temperature range. Instead of this strain rate - strain relations can be read from external creep data files for different temperature and stress levels. The damage module accumulates a damage measure based on the creep strain increment and plastic strain increment of the load step and the current fracture strains for creep and plasticity (depending on temperature and stress level). If the damage measure of an element exceeds a critical value this element is deactivated. Examples are given for illustration and verification of the new program modules.

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Гудков, Сергій Миколайович, Сергей Николаевич Гудков, Serhii Mykolaiovych Hudkov, and И. В. Мазуренко. "Исследование динамики ротора безвального насоса с использованием программного комплекса ANSYS." Thesis, Сумский государственный университет, 2014. http://essuir.sumdu.edu.ua/handle/123456789/40528.

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Осевые силы, действующие на роторы насосов, измеряются десятками тонн. Уравновешивание этих сил достигается с помощью автоматических устройств. Основными элементами систем авторазгрузки ротора являются цилиндрический и торцовый дроссели, разделенные камерой. Проводимости цилиндрического и торцевого дросселя зависят соответственно от радиальных и осевых колебаний ротора. С этого можно сделать вывод о взаимосвязи радиальных и осевых колебаниях ротора, которую необходимо учитывать на стадии расчета и проектирования уравновешивающих устройств.

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Шайда, Виктор Петрович, and Яна Романовна Кулиш. "Оптимизация асинхронного двигателя общего назначения в пакете программ Ansys Maxwel." Thesis, НТУ "ХПИ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/25566.

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Klaška, Petr. "Implementace nových metod řešení úloh dynamiky v programovém systému ANSYS." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228271.

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This paper deals with an implementation trigonometric collocation method for ANSYS program system and its application with databases additional stiffness, mass and damping effects of journals or hydrodynamic dampers.

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Longo, Joel Joseph. "Unsteady Turbomachinery Flow Simulation With Unstructured Grids Using ANSYS Fluent." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1376875053.

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Lamichhane, Udit. "Numerical Analysis of Cracked Aluminum and Steel Connection by ANSYS." University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1544738026833242.

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Савченко, Євген Миколайович, Евгений Николаевич Савченко, Yevhen Mykolaiovych Savchenko, and И. О. Трубицина. "Моделирование деформаций рабочих колес центробежного компрессора с использованием программного комплекса ANSYS." Thesis, Сумский государственный университет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/31813.

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Компрессоры, широко применяемые в народном хозяйстве, предназначены для повышения давления газов и их перемещения. Ведущее место занимают центробежные компрессоры (ЦК) разных типов, которые наиболее широко используются в химической, нефтяной и газовой промышленности. У ЦК может быть одно или более рабочих колес (РК), что зависит от параметров компрессора. РК представляет собой диск или же сложное тело вращения, на котором установлены лопатки, расходящиеся от центра к краям диска. Характерными конструктивными особенностями РК являются пространственность формы всех элементов и наличие зон резкого изменения формы в местах перехода от лопатки к диску, т.е. конструктивных концентраторов напряжений. При цитировании документа, используйте ссылку http://essuir.sumdu.edu.ua/handle/123456789/31813

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Сидорец, А. И. "Использование программного комплекса ANSYS при исследовании процесcов герметизации радиальных сальниковых уплотнений." Thesis, Издательство СумГУ, 2007. http://essuir.sumdu.edu.ua/handle/123456789/15089.

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Руденко, К. В. "Розрахункові дослідження теплового стану приміщення кінотеатру з використанням програмного забезпечення Ansys." Master's thesis, Сумський державний університет, 2021. https://essuir.sumdu.edu.ua/handle/123456789/87117.

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Пояснювальна записка: 67 сторінок, 6 таблиць, 24 рисунки, 19 літературних джерел. Мета роботи: проведення енергетичного обстеження системи теплопостачання. Відповідно до поставленої мети були поставлені та вирішені наступні задачі: проведено енергетичне обстеження системи теплопостачання (системи повітряного опалення); проведено порівняльний аналіз отриманих результатів з дійсними та нормативно допустимими значеннями; визначено доцільність та економію заміни традиційного опалення на систему повітряного опалення у залі кінотеатру. Предметом дослідження є система теплопостачання залу кінотеатру. Об’єктом дослідження є використання теплоносіїв кінозалу. Методи дослідження: числове моделювання теплового стану приміщення, створення тривимірної моделі, побудування розрахункової сітки, опис розрахункової моделі, проведення комп’ютерного розрахунку, економічна доцільність заміни традиційного опалення на систему повітряного опалення та терміни окупності даної системи.

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Савченко, Євген Миколайович, Евгений Николаевич Савченко, Yevhen Mykolaiovych Savchenko, and С. В. Сергієнко. "Аналіз руйнування робочих коліс відцентрового компресора з використанням програмного комплексу ANSYS." Thesis, Видавництво СумДУ, 2012. http://essuir.sumdu.edu.ua/handle/123456789/25911.

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Загорулько, Андрій Васильович, Андрей Васильевич Загорулько, Andrii Vasylovych Zahorulko, and Я. В. Шкурат. "Методика расчетов напряженно-деформированного состояния отдельных типов конструкций по программе ANSYS." Thesis, Изд-во СумГУ, 2004. http://essuir.sumdu.edu.ua/handle/123456789/23433.

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Шайда, Виктор Петрович, Елена Юрьевна Юрьева, and Яна Романовна Кулиш. "Многокритериальная оптимизация асинхронного двигателя общего назначения в пакете программ Ansys Maxwell." Thesis, НТУ "ХПИ", 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/32156.

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Von, Schmalz Torres Juliana. "Otimização de pórticos de concreto armado utilizando o sistema computacional ANSYS." Universidade Federal de Pernambuco, 2001. https://repositorio.ufpe.br/handle/123456789/5857.

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Made available in DSpace on 2014-06-12T17:42:11Z (GMT). No. of bitstreams: 2 arquivo6731_1.pdf: 880140 bytes, checksum: fd2a367a2d6351e3a898463082195cc8 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2001
O presente trabalho tem por objetivo apresentar um procedimento para obtenção de projetos de custo mínimo, para pórticos planos de concreto armado com seções transversais retangulares. As instruções contidas no Guia de otimização estrutural da ASCE para obtenção de projetos ótimos são seguidas. A função objetivo envolve os custos do material e da mão-de-obra do concreto, da armadura e da forma. As variáveis de projeto são as dimensões da seção transversal das vigas e pilares que compõem o pórtico. As armaduras também são variáveis do problema, só que dependentes das variáveis anteriormente discutidas. As restrições impostas são baseadas nos critérios para projetos de concreto armado da norma americana, ACI. Para cada pilar as restrições consideradas são: capacidade de resistência da coluna e armadura máxima. Para as vigas as restrições impostas são: capacidade de resistência a flexão, armadura máxima e capacidade de resistência ao cisalhamento. No programa ANSYS, a análise linear elástica da estrutura via o método dos elementos finitos é conduzida. Um módulo específico foi desenvolvido e codificado contendo as especificações para dimensionamento das armaduras nas seções de cada elemento estrutural, bem como a formulação das restrições e função objetivo e as regras de associação das variáveis de projeto. Tal módulo é inserido no programa ANSYS para executar a otimização. Para obter projetos ótimos, algoritmos de programação não linear contidos neste programa são empregados. Para ilustrar o procedimento da otimização aqui descrito, exemplos são apresentados

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FILECCIA, DANIELA. "Modellazione numerica del comportamento di una giubbetto ap tramite ansys/explicit." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2014. http://hdl.handle.net/2108/203174.

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42

MARINHO, IVY JEANN PINTO. "LE PROJET OPTIMUM DE STRUCTURES MÉTALLIQUES DE GRADINS A RÉUTILISABLES PAR ANSYS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2002. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=5111@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
Les structures métalliques qui sont utilisés en gradins réutilisables ou temporaires pour les grands événements publics sont composés par barres et connecteurs. Le haut niveau de charges dynamiques que ces structures sont sujets et as caractéristique d être réutilisables, la rend différent des autres structures de l ingénieur civil. Alors, elles doivent être donné évitant l effect de résonance dynamique. Cet-à-dire, lorsque nous optimisons ces structures, nous devrions considérer la restriction relative aux fréquences naturelles qui devraient être dehors de la bande des fréquences sollicitant. En plus, c est nécessaire qu elle réponde convenablement aux charges statiques. Alors, quelconque amélioration en son suppléant statique et dynamique apportera des avantages directs au projet. L idée de ce travail est proposer l optimisation du projet statique et dynamique de gradins réutilisabless en utilisant modélisation et analyse numérique de structures par la méthode des éléments finis (ANSYS 5.4/5.5-APDL) et optimisation par la méthode de programmation mathématique. Le projet optimum des éléments de la structure, sujet à charge statique, est basé sur les suivant paramètres : Poids et tension. En plus, il faut vérifier le niveau de sécurité contre la ruine lorsqu elles sont sujet à charges dynamiques intenses, en proposant des critères pour la correcte disposition du fortifier, en observant les variations dans les fréquences naturelles et façons de vibration. L optimisation de ces structures des beaucoup d applications apportera d avntage immédiat à la population.
Estruturas metálicas de arquibancadas reutilizáveis ou temporárias são utilizadas em grandes eventos públicos, sendo compostas por barras e conectores, com montagem realizada in loco. O elevado nível de cargas rítmicas aplicadas a tais estruturas e sua característica de múltipla reutilização, a difere de estruturas comuns da Engenharia Civil, exigindo que elas sejam projetadas de modo a evitar o efeito de ressonância dinâmica. Isso significa que, ao otimizar tais estruturas, deve-se considerar a restrição relativa às freqüências naturais que devem estar fora da faixa das freqüências solicitantes. Além disso, é necessário que a estrutura responda adequadamente às cargas estáticas. Disto resulta que eventuais melhorias no seu desempenho estático e dinâmico trarão benefícios diretos ao projeto. A idéia deste trabalho é propor a otimização do projeto estático e dinâmico de arquibancadas reutilizáveis, utilizando-se modelagem e análise numérica de estruturas reais pelo Método dos Elementos Finitos (ANSYS 5.4/5.5 - APDL), e otimização por método de programação matemática. Pretende-se atingir o dimensionamento ótimo dos elementos componentes da estrutura, sob carga estática, baseado nos parâmetros peso e tensão, além de verificar o nível de segurança contra colapso quando sujeitas a solicitações rítmicas intensas, propondo critérios para a correta disposição do contraventamento, observando as variações nas freqüências naturais e modos de vibração. A otimização dessas estruturas de grande aplicação comercial trará benefício imediato à população.

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Драч, О. В. "Використання ANSYS для моделювання об'єктів малої вітрової енергетики та систем локалізації вибухів." Thesis, Сумський державний університет, 2012. http://essuir.sumdu.edu.ua/handle/123456789/29233.

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44

Šimík, Marcel. "Specifika nastavení řešiče v systému Ansys Fluent pro nízké tlaky v EREM." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-319633.

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This thesis is focused on electron microscopy which issue is discussed at the beginning of work. The main attention is dedicated to the Environmental electron microscope, especially the differentially pumped chamber, which the thesis deals with. There is a production of an experimental chamber for analysis of shock waves on going therefore main goal of this thesis was to analyze the flow pattern in this chamber. Using the Ansys Fluent program, simulations of the characteristic flow that arises from the pumping of the vacuum chambers namely the ultrasonic flow at low pressures on which the most suitable turbulent module was applied as well as the degree of discretization was performed. The final analysis of this flow pattern is primarily focused on the localization of the shock wave which experimental evidence is to be lodged by shadow optical method as a part of the new concept of the chamber. The basis for the simulation of the chamber was taken over by Dr. Danilatos, with which the results were compared.

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Ballmann, Markus. "Konstruktionsoptimierung mittels parametrischer FE-Simulation am Beispiel eines Übertragungselements in Klauenkupplungen." Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-172526.

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Im Vortrag wird das Vorgehen zur Konstruktionsoptimierung mittels parametrischer FE-Simulation beschrieben. Die einzelnen Schritte werden dargestellt und am Beispiel eines Übertragungselements für Klauenkupplungen erläutert. Zunächst wird der Optimierungsgegenstand vorgestellt und die Festlegung der Entwurfsvariablen und Zielfunktionen beschrieben. Im Anschluss werden die Erstellung des FE-Modells und die Durchführung der Optimierungsrechnung schrittweise erläutert. Abschließend folgen ein Vergleich verschiedener Optimierungsmethoden und die Zusammenfassung. Als Software wurden ANSYS und Autodesk Inventor verwendet.

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Moghimi, Ardekani Mohammad. "Optical thermal and economic optimisation of a linear Fresnel collector." Thesis, University of Pretoria, 2017. http://hdl.handle.net/2263/61313.

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Solar energy is one of a very few low-carbon energy technologies with the enormous potential to grow to a large scale. Currently, solar power is generated via the photovoltaic (PV) and concentrating solar power (CSP) technologies. The ability of CSPs to scale up renewable energy at the utility level, as well as to store energy for electrical power generation even under circumstances when the sun is not available (after sunset or on a cloudy day), makes this technology an attractive option for sustainable clean energy. The levelised electricity cost (LEC) of CSP with thermal storage was about 0.16-0.196 Euro/kWh in 2013 (Kost et al., 2013). However, lowering LEC and harvesting more solar energy from CSPs in future motivate researchers to work harder towards the optimisation of such plants. The situation tempts people and governments to invest more in this ultimate clean source of energy while shifting the energy consumption statistics of their societies from fossil fuels to solar energy. Usually, researchers just concentrate on the optimisation of technical aspects of CSP plants (thermal and/or optical optimisation). However, the technical optimisation of a plant while disregarding economic goals cannot produce a fruitful design and in some cases may lead to an increase in the expenses of the plant, which could result in an increase in the generated electrical power price. The study focused on a comprehensive optimisation of one of the main CSP technology types, the linear Fresnel collector (LFC). In the study, the entire LFC solar domain was considered in an optimisation process to maximise the harvested solar heat flux throughout an imaginary summer day (optical goal), and to minimise cavity receiver heat losses (thermal goal) as well as minimising the manufacturing cost of the plant (economic goal). To illustrate the optimisation process, an LFC was considered with 12 design parameters influencing three objectives, and a unique combination of the parameters was found, which optimised the performance. In this regard, different engineering tools and approaches were introduced in the study, e.g., for the calculation of thermal goals, Computational Fluid Dynamics (CFD) and view area approaches were suggested, and for tackling optical goals, CFD and Monte-Carlo based ray-tracing approaches were introduced. The applicability of the introduced methods for the optimisation process was discussed through case study simulations. The study showed that for the intensive optimisation process of an LFC plant, using the Monte Carlo-based ray-tracing as high fidelity approach for the optical optimisation objective, and view area as a low fidelity approach for the thermal optimisation objective, made more sense due to the saving in computational cost without sacrificing accuracy, in comparison with other combinations of the suggested approaches. The study approaches can be developed for the optimisation of other CSP technologies after some modification and manipulation. The techniques provide alternative options for future researchers to choose the best approach in tackling the optimisation of a CSP plant regarding the nature of optimisation, computational cost and accuracy of the process.
Thesis (PhD)--University of Pretoria, 2017.
Mechanical and Aeronautical Engineering
PhD
Unrestricted

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Rinaldi, Elisa. "3D Finite Element Analysis of Wheel/Rail normal contact problem using ANSYS software." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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La meccanica del contatto fra ruota ferroviaria e rotaia, è una delle più importanti aree di studio nell’Ingegneria Ferroviaria. Ad oggi, un vasto numero di formulazioni analitiche sono state proposte dai ricercatori, con lo scopo di valutare i parametri di contatto tra ruota e rotaia ed arrivare ad una descrizione affidabile delle forze che agiscono nell’area di contatto. Comunque, solo alcuni dei metodi disponibili permettono di considerare, nelle loro elaborazioni, la reale geometria di contatto tra ruota e rotaia o la non linearità delle proprietà dei materiali impiegati. Un’alternativa ai metodi analitici per descrivere la fisica del contatto tra ruota e rotaia e di fare uso di tecniche computazionali numeriche quale l’Analisi agli Elementi Finiti (FEA – Finite Element Analysis). Il vantaggio di questo metodo è dato dalla possibilità di poter modellare complesse geometrie che permettono di simulare più accuratamente il contatto tra ruota e rotaia e determinare l’ampiezza degli stress e la loro distribuzione, oltre alla dimensione e forma dell’area di contatto. Per questa ragione, un modello agli Elementi Finiti tridimensionale della ruota ferroviaria e della rotaia è stato creato utilizzando Ansys Parametric Design Language di ANSYS per studiare il problema di contatto normale. Per verificare l’accuratezza dei risultati forniti dal modello, questo è stato validato in confronto alla teoria di Hertz sul contatto elastico. Questa teoria rappresenta la base sulla quale la maggior parte dei modelli computazionali vengono sviluppati. Il principali scopi di questa tesi sono quindi di studiare i problemi del contatto tra ruota e rotaia e di valutare l’influenza dei parametri operativi quali il coefficiente di frizione, lo spostamento laterale della sala montata e l’inclinazione della rotaia sul piano orizzontale, sulla fisica del contatto.

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Савченко, Євген Миколайович, Евгений Николаевич Савченко, Yevhen Mykolaiovych Savchenko, and И. А. Коржова. "Исследование напряженно-деформированого состояния рабочих колес центробежного компрессора с использованием программного комплекса ANSYS." Thesis, Сумский государственный университет, 2014. http://essuir.sumdu.edu.ua/handle/123456789/40434.

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Центробежные компрессоры (ЦК) разных типов широко используются в химической, нефтяной, газовой и других отраслях промышленности. Компрессоры могут быть одно- или многоступенчатыми и, соответственно, могут иметь одно или более рабочих колес (РК), в зависимости от параметров компрессора. Характерными конструктивными особенностями РК являются пространственность формы всех элементов и наличие зон резкого изменения формы в местах перехода от лопатки к диску, т.е. конструктивных концентраторов напряжений. Поломка РК во время работы машины приводит к полному выходу из строя всей машины.

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Євсєєв, В. В., and Веляде Салієва. "Застосування CAE ANSYS для аналізу напружено-деформованого стану основних деталей редуктора мобільного робота." Thesis, International Conference "MANUFACTURING & MECHATRONIC SYSTEMS 2017", 2017. http://openarchive.nure.ua/handle/document/4156.

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Nordahl, Emily Rose. "Best Practices in Computational Fluid Dynamics Modeling of Cerebral Aneurysms using ANSYS CFX." Thesis, North Dakota State University, 2015. https://hdl.handle.net/10365/27810.

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Abstract:

Today many researchers are looking toward computational fluid dynamics (CFD) as a tool that can help doctors understand and predict the severity of aneurysms, but there has yet to be any conclusive proof of the accuracy or the ease of implementation of this CFD analysis. To help solve this issue, CFD simulations were conducted to compare these setup practices in order to find the most accurate and computationally efficient setup. These simulation comparisons were applied over two CFD group challenges from the CFD community whose goal was not only to assess modeling accuracy, but the analysis of clinical use and the hemodynamics of rupture as well. Methodology compared included mesh style and refinement, timestep comparison, steady and unsteady flow comparison as well as flow rate amplitude comparison, inlet flow profile conditions, and outlet boundary conditions. The ?Best Practice? setup gave good overall results compared with challenge participant and in-vitro data.

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Dissertations / Theses on the topic 'ANSYS'

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