Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"CAD Data"”.
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Versatility And Customization Of Portable Cmm In Reverse Engineering A
… world this is referred to as Part to CAD conversion, where the geometry of physical objects are being captured as Digital 3-D CAD Data. This is vital not only to produce drawing of parts for which no CAD data exists, but also is frequently being used to produce better designs. The …
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HARNESSING BIG DATA FOR ENHANCED OPERATION AND MAINTENANCE IN MECHANICAL ENGINEERING
… labor-intensive and error-prone due to manual CAD data extraction. This thesis introduces an automated macro tool that standardizes and digitizes the planning process, aligning with Industry 4.0 practices. The macro converts CAD data into structured Excel tables, creating an error-free dataset …
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Selektives Laserschmelzen zur generativen Herstellung von Bauteilen aus hochfester Oxidkeramik
… of complex shaped objects directly from CAD data. By completely melting a purely ceramic zirconia-alumina powder mixture using a laser beam, objects of almost 100% density and a flexural strength of more than 500 MPa were manufactured. In order to avoid crack formation, the ceramic is …
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Avl And Response Time Reduction: Image And Reality
… Department (ASPD), computer aided dispatch (CAD) data from years 1999 to 2003 were analyzed. The analysis of each of the data sets consisted of an initial sequence chart, an analysis of variance (ANOVA), a means plot and a linear regression. Interviews of ASPD personnel were conducted to …
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Machining feature-based system for supporting step-compliant milling process
… up a standard description method for product data and providing a neutral exchanging mechanism that is independent of all the information processing systems for product information model. STEP Part 21 is the first implementation method from EXPRESS language and implemented successfully in CAD …
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Development of a Full-Body CAD Dataset for a Computational Model of the 5th Percentile Female
… from existing average male models, since scan data for such a specific target anthropometry is limited. However, as part of the Global Human Body Models Consortium (GHBMC) project, comprehensive image and anthropometrical data of a 5th percentile female was acquired. The long range objective of …
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An analysis of the Afrikaans telephonic descriptors of cardiac arrest in a Western Cape Emergency Control centre
… (WC-EMS). Methodology: Computer-aided dispatch (CAD) data with a corresponding “patient unresponsive” incident type were drawn for a 12 month period (January – December 2018). Corresponding patient care records were extracted to verify OHCA. The original voice recordings between the caller and …
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Integrating vision into a computer integrated manufacturing system
… system involves extracting from image data the information which has meaning to the task at hand, and communicating that information to the larger system. The goal of this research was to integrate the activities of a stand-alone vision system into the operation of a manufacturing …
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Hybrid geometry representations with applications in medical imaging and model repair
… relates to the efficiency of the underlying data structures, a fact that becomes in particular apparent in dynamic models that need to be updated frequently. In this thesis we design and evaluate so-called hybrid geometry representations that combine the advantages of the traditional …
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New Strategic and Dynamic Variation Reduction Techniques for Assembly Lines
… inspection plans based on (1) historical data for existing products, or simulated data for newly developed products; (2) Monte Carlo simulation; and (3) optimization search techniques. The cost function to be minimized is the total of inspection, rework, scrap and failure costs. The …
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An Evaluation of 3D Building Modelling and Visualisation packages for Enhancing Public Participation within the Planning Process
… These examined the usability of different 3D CAD packages and the possibility of integrating CAD data with GIS, and how it could be used to quicken the modeling process. Results from these trials showed that through the use of workarounds there are possibilities of integrating CAD and GIS …
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Influence of Hexagonal Height on the Stress Distribution
… the hexagonal height on the stress distribution. CAD data with variances of hexagonal height of 0.0, 0.7, 1.2 1.5 mm was formed based on the Osstem® Implant(Osstem Co., Pusan, South Korea) USII (ABFR411S) model. The stress distribution was compared by selecting the Von Mises stress(Mpa) among the …
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Production of metal parts using the three dimensional printing process
… to modulate the binder stream are derived from CAD data. Unbound powder temporarily supports unconnected portions of the component, allowing overhangs, undercuts and internal volumes to be created. The unbound powder is removed upon process completion, leaving the finished part. The Three …
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Finite Element Modeling Driven by Health Care and Aerospace Applications
… procedure to convert 3-dimensional imaging data into adaptive lattice-based discretizations of well-shaped tetrahedra or mixed elements (i.e., tetrahedra, pentahedra and hexahedra). This method operates directly on segmented images, thus skipping a surface reconstruction that is required by …
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Qualifizieren des Laserstrahl-Auftragschweißens von BLISKs aus Nickel- und Titanbasislegierungen
… to be built-up and due to deviations between the CAD data for manufacture and the geometry of the blade after service and / or manufacture.
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Konturnahes Laserstrahlstrukturieren für Kunststoffspritzgießwerkzeuge
… functional demonstrational machine. The single data stream running through the entire process reduces error propagation. The system is very user friendly due to a central technology database and support software applications. Different pilot applications in the fields of tool and die making, …
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On Virtual Commissioning of Manufacturing Systems: Proposals for a systematic VC simulation study methodology and a new simulation model building approach
… systems has been a research topic in academia and industry for far more than a decade. Positive results are reported from<br/>large companies e.g. from the automotive industry, which are mostly utilising the complex and costly suites of tools in the context of the Digital Factory, …