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 20 of 944 for “"CAD"”.
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Distributed & conceptual CAD (DC-CAD) : a new software solution for product design
Many computer aided design (CAD) software packages focus on detailed design and not on early stage, conceptual design. The ability to conceptualize and sketch early versions of a product solution is currently limited to paper and pencil or to inadequate computer-aided industrial design programs …
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CAD enabling smart handtools
CAD (Computer Aided Design) software allows one to describe a design in great detail and at any arbitary scale. However, our interface to CAD is still largely through traditional avenues: screen, keyboard and pointing devices. While these interfaces function for their intended purposes: text entry, …
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SolidWorks 3D CAD rendszer alkalmazásai
A dolgozatban a manapság használt 3 leggyakrabban előforduló szoftverről adok egy rövid ismertetőt, majd bemutatom azon funkciókat, amelyekben hasonlítanak egymásra, s az utolsó részben a különbségeket veszem elő.
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A New CAD Design Framework
… lessen the intense workload of the blackboard in Cadweld. The multilevel transaction manager can help to solve the problem of calling nested tools without going through the blackboard which can solve partial the bottleneck problem of blackboard in Cadweld.
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Are two heads better than one in CAD? a comparison of various CAD working styles
Collaboration in Computer-Aided Design (CAD) has existed since the inception of CAD tools. The established norm in multi-user CAD work has been to use top-down modeling techniques wherein a complex model is divided into sub-assemblies (or part files) for individual designers to work on separately. …
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Design reuse in a CAD environment
… design families to be transformed into 'dynamic' CAD-based models for the Conceptual, Embodiment and Detailed stages of the design process. Two novel concepts are proposed here, i) the use of a Function Means Tree to store Conceptual and Embodiment design and ii) a Variant Method to represent …
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CAD Model-Based 3D Scene Reconstruction
… method involves retrieving the best-matching CAD model for each observed object from a database and aligning it with the corresponding input. This technique yields a CAD model-based 3D scene representation that is compact, contains realistic shapes, and is well-suited for a wide range of …
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CAD for a 3-dimensional FPGA
… Programmable Gate Arrays (FPGAs) are analyzed. A CAD tool has been developed to specify 3-dimensional FPGA architectures and map RTL descriptions of circuits to these 3-D FPGAs. The CAD tool was created from the widely used Versatile Place and Route (VPR) CAD tool for 2-D FPGAs. The tool performs …
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A CAD tool for supermind design
… as superminds. In this thesis, I present a CAD (Computer-Aided Design) tool for designing and configuring superminds. This tool is based on the supermind design methodology developed at the MIT Center for Collective Intelligence. It aims to enable users to generate innovative possibilities …
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A knowledge based manufacturing advisor for CAD
… allow moulding features to be recognised from a CAD model. Existing feature recognition techniques are not appropriate for moulded parts and a new feature recognition approach has been developed that uses a mid-surface abstraction from the CAD solid model as the basis for feature recognition. The …
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Design optimization using CAD parameterization through CAPRI
… process, beginning with a Computer Aided Design (CAD) model and ending with an optimized version of that model relative to some objective function. This is accomplished by parameterizing the model, through one of many different algorithms, and finding the ideal value of those parameters with …
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Similarity Assessment and Retrieval of CAD Models
… assessment and retrieval mechanism for CAD model reuse, which also takes the mechanical reusability into account, has not been defined. Therefore, this research aims to develop a reuse-oriented retrieval mechanism to locate reusable CAD models effectively. A semantics-based feature …
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CAD of rectangular-ridged waveguide bandpass filters
… waveguide cross-sections. A Computer-Aid-Design (CAD) tool is built for the rigorous analysis of an evanescent-mode waveguide filter using the MM-GSM method. A Graphic-User-Interface (GUI) is part of the CAD tool. The user can enter filter parameters and analyze the accurate response of the filter …
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Timing-driven optimization problems in VLSI CAD
We study several optimization problems that arise in the design of VLSI circuits, with the satisfaction of timing constraints as the primary objective. We focus on problems where the underlying architecture is regular. Field Programmable Gate Arrays (FPGAs), identical standard cell based …
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Automated CAD Model Generation for Structural Optimisation
Computer-aided design (CAD) models play a crucial role in the design, manufacturing and maintenance of products. Therefore, the mesh-based finite element descriptions common in structural optimisation must be first translated into CAD models. Currently, this translation either can be performed …
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Functional requirements to shape generation in CAD
An outstanding issue in computer-aided design (CAD) is the creation of geometric shapes from the description of functional requirements (FRs). This thesis presents a method that can generate assembled shapes from the given FRs without human intervention. To achieve this goal, the design process …
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CAD oriented database for integrated circuit layouts
… structures, database I/O, and interface for the CAD tool designer. The implementation techniques for a layout editor are also described. The most important feature of the database is that the complexity of key operations for neighbor finding, region queries, and location of empty space depend on …
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AN INTEGRATED CAD TOOL BASED ON DESIGN INTENT
… Microsoft Windows 3.1 environment using AutoCAD by AutoDESK for the CAD interface and Kappa-PC, an expert system shell by Intellicorp, for object-oriented modelling, reasoning and non-geometric interaction. The techniques that were implemented are parametricity, object-oriented, modelling and …
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Architecture and CAD for nanoscale and 3d FPGA
… nanoscale materials synergistically. Customized CAD flows that consider process variation have been developed for different architectures to evaluate their potential performances. Also described is a 3D variation aware routing flow, which is an essential tool for future 3D FPGA architecture …
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