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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
181

Využití 3D tisku v TZB / Using 3D printing in HVAC

Malovaný, Ondřej January 2019 (has links)
In the experimental part of this thesis there is an assessment of pressure bearing capacity of cylindrical nozzles printed using a 3D printer. In the theoretical part of this diploma thesis there are outlined the types of additive technologies focusing on the development of FDM printers, open designs and RepRap project. Descripti-on of the production process of 3D printing and application of additive technolo-gies in the field of HVAC. In the project part, the design of the forced ventilation of the Sports Hall is solved. The object is assessed in terms of heat losses and profits for priority rooms of functional units. Heat load coverage is carried out by air-conditioning equipment. In addition, a project is drawn up which contains all the text and drawings, including technical specifications and regulatory schemes.
182

Použití technologie 3D tisku pro návrh výroby náhradních dílů / Use of 3D printing technology for the design of spare parts production

Šafl, Pavel January 2021 (has links)
This seminar thesis deals with the issue of 3D printing in companies. The aim was to describe additive manufacturing and 3D printing technologies. Moreover, to select the most common materials which are used and describe them. It was also necessary to perform a study of mechanical stresses and prepare a detailed description of the mechanical properties of materials. From these data, methods of use in the automotive industry were described. The most important part was to introduce case studies and create a description of which 3D printing technologies have the fastest return on investment.
183

Návrh 3D tiskárny typu delta pi s temperovanou podložkou s využitím systémů CAE / Design of delta pi 3D printer with tempered bed using CAE systems

Koudela, Ondřej January 2015 (has links)
This master's thesis deals with 3D printing using non-commercial 3D RepRap type printers. This work briefly describes development trends of non-commercial RepRap printers, theory of FDM print with analysis and comparison of materials, which are used in printing and the issue of the finite volume method and theory of heat diffusion. The practical part based on simulations from SolidWorks Flow Simulation discussed two basic methods of heating hot bed, then the temperature profile of hot end and the heat flow in full assembly of the printer. Outcome of this work is design an optimized model and the physical assembly of 3D printer delta pi type.
184

Návrh tlačového prostredia strednej firmy / Design of Printing Environment for Medium Company

Bondra, Ivan January 2012 (has links)
The thesis deals with the design of the printing environment in REGADA company. Based on the analysis of the current print operation in company, the work points to the usual challenges of midsize companies in this field. Solution of these problemsis introduced in the design part of the thesis. This part describes the optimization of the main areas of the printing environment resulting in technical, operational and financial benefits of the proposed solutions.
185

William Bernard Cooke, George Cooke, and J.M.W. Turner: Business of the Topographical Print Series

Turpijn, Saskia C. 01 January 2019 (has links)
The organization of eighteenth and nineteenth-century British printmaking and publishing was based on economic principles and occurred in the collaborative sphere of the engraver’s studio. Print designers, engravers, printers, and publishers formed a professional network that operated on economic principles, publishing prints that served to generate income for its participants. These ventures faced great challenges in the lengthy and laborious processes of engraving and publishing, and in financing the project for the duration of that time. This project examines the economic structure of early nineteenth-century prints. Using comprehensive accounting records, it analyzes two well-known topographical print series. The profitable Southern coast by William Bernard Cooke and George Cooke is compared to the financially unsuccessful Tour of Italy by James Hakewill, series that both were partly based on watercolors by J.M.W. Turner. A well-managed organization and a sound financial framework laid the foundation for a profitable venture. The success of print series hinged on several critical success factors, such as access to sufficient capital, strict cost containment, and optimized print editions. An examination of the conflict that ended the collaboration between Turner and the engravers Cooke, originating in Turner’s demand for higher design fees, puts the validity of the arguments of both parties in a new light. The investigation into the work practice of the engravers Cooke and the economic factors that determined the outcome of their labor contributes to a better understanding of the printmakers’ opportunities and challenges at the onset of the modern art market.
186

Anwendung von intelligenten Technologien in der online-Qualitätskontrolle von Druckprodukten

Flemming, Steven 20 June 2006 (has links)
Die vorliegende Arbeit befasst sich mit der Anwendung von intelligenten Technologien in der online-Kontrolle von Druckprodukten. Ausgehend von der Qualität der Druckprodukte und den Möglichkeiten der Kontrolle von Druckqualität direkt im Herstellungsprozess werden Lösungen der Druckbildkontrolle diskutiert. Den Kern der Arbeit bildet die Anwendung intelligenter Technologien, wie Fuzzy Logic oder Neuronale Netze, in der Kontrolle von Druckbildern. Aufgrund der Generalisierungsmöglichkeiten und der Modularität der untersuchten Algorithmen eignen sich die beschriebenen Ansätze zur Implementierung in ein Druckkontrollsystem oder in andere zeitkritische Bildverarbeitungssysteme.
187

Vom CAD-Modell über die Simulation zum 3D-Druck und zurück : Simulationsansätze in einer, durch den 3D-Druck entfesselten, neuen Gestaltungsfreiheit

Prinz, Ralf 22 July 2016 (has links)
War bisher die Gestalt von Bauteilen und Baugruppen in Konstruktionen sehr stark durch ihre Fertigungsverfahren beeinflusst, so ändern sich diese Vorgaben durch die Verwendung von 3D- Druck auf beinahe revolutionäre Art und Weise. Und somit werden Ansätze salonfähig, die bisher doch eher selten in Anwendung waren, wie z.B. Gitterstrukturen oder Topologieoptimierung. Diese finden nun wieder häufiger ihren Weg in die Bauteil- und Baugruppenstrukturen. Die Verwendung birgt aber auch damit einhergehende Herausforderungen, da sich z.B. die Bauteilgrößen nach einer Topologieoptimierung drastisch vergrößern und z.B. auch die Glättung der Teile für den Druck, sowie die Rückführung in die CAD-Systeme, häufig noch eine ungelöste Aufgabe darstellen. Diese Ansätze müssen bezogen auf den PLM Gedanken, prozesstechnisch durchdacht und entsprechend implementiert werden. Der Vortrag beschäftigt sich mit der dafür notwendigen Prozesskette vom CAD-Model über die Simulationsverfahren wie Topologieoptimierung oder Gitterstrukturen, Glättung von Strukturen u.v.m. sowie deren Rückführung ins CAD/PLM.
188

Chimericwear : Blending Boundaries Between Digital and Physical Expressions in Fashion Design

Paberza, Liana January 2023 (has links)
The thesis bridges the gap between physical and digital print design in search of a hybrid state, reflecting our present time. With AI-assisted creativity in print development and features such as added volume to the print elements, the physical garments replicate the creation of a 3D object existing in computer software. Through innovative garment construction techniques and the development of photographic print composition, it redefines the relationship between print, form, and body. Driven by visually stimulating imagery and the desire to communicate physical sensation through concepts constructed via digital tools, the thesis proposes hybrid wearables existing in both the digital and physical states. The research examines an innovative symbiosis between the nostalgic past and the futuristic present with joyful expression in mind while simultaneously harmonizing the saturated voices of the current zeitgeist. The project contributes to the utilization of AI image-generating tools such as Dalle2 in the design practice and the role of maintaining human-centered design instead of replacing it. The results are presented in multitudes of different presentation formats from analog or digital ones in the forms of image stills and animation to phygital convergences between the virtual and the actual reality.
189

Digital vs. In-print Textbooks: Relationships and Trends for College Students

Patton, Kelly A., Miss 17 April 2014 (has links)
No description available.
190

Large-scale robotic 3D printing : Standardized tests to dial in new materials for IRBAM architecture

Nieto Pareja, Pablo January 2024 (has links)
Large Scale Additive Manufacturing (LSAM) technology has emerged as a transformative force in the manufacturing industry. Using robots and advanced material deposition systems, LSAM facilitates the efficient creation of large-scale components with exceptional precision and reduced production times. Beyond its capacity to manufacture complex structures, this technology drives innovation by fostering the exploration of new materials and designs, opening new frontiers in the aerospace, automotive, and construction sectors. The synergy between robotics and additive manufacturing in LSAM represents a significant advancement toward the future of manufacturing, where customization, efficiency, and sustainability are paramount.  Within the framework of this research, conducted in collaboration with ABB and RISE, a series of tests have been developed to optimize printing parameters when transitioning from one material to another. This study showcases how simple adjustments in the workflow of robotic stations can lead to significant improvements in print quality and increased resource efficiency, paving the way for more precise and sustainable manufacturing.  This research has not only generated valuable insights into the behavior of LSAM under different operating conditions but also provided practical solutions for its continuous improvement. These findings are relevant for the continuous improvement of large-scale additive manufacturing processes and provide important insights for future research in the fields of robotics and advanced manufacturing. Additionally, a systematic methodology has been developed to evaluate and validate results, ensuring the reliability and reproducibility of findings. These achievements solidify the role of LSAM as a fundamental technology in the evolution of the manufacturing industry toward a more efficient and sustainable future.

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