Дисертації з теми "Integrated parametric design workflow"
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Lee, Dong Kyu. "High energy efficient building envelope design with integrated workflow in multidisciplinary performance criteria." Thesis, Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/47673.
Повний текст джерелаLandis, Mark J. "Development of a Parametric Data-Driven Fixed Shading Device Design Workflow." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1553250987067742.
Повний текст джерелаLindstrand, Klas, and Axel Simonsson. "Optimization Workflow for Flat Slab Systems : Using Parametric Design with Visual programming." Thesis, KTH, Mekanik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230892.
Повний текст джерелаFramsteg inom IT och teknologi har möjliggjort utveckling av banbrytande verktyg som parametrisk design med visuell programmering. Konstruktörer har möjligheten att utnyttja denna utveckling genom att implementera visuell programmering, vilket i kombination med optimeringsalgoritmer kan generera alternativa konstruktionslösningar. Detta teknikskifte möjliggör ett närmare samarbete med arkitekter i tidiga skeden vilket kan resultera i mer vågade konstruktioner och arkitektur. Syftet med examensarbetet var att skapa ett arbetsflöde som utnyttjade parametrisk design och optimering i en visuell programmeringsmiljö som kunde utföra strukturanalys och optimering, vilket genererade optimala pelardäck med oväntade pelarplaceringar. Idén med detta var att arbetsflödet kunde implementeras i tidiga skeden med arkitekter, när den kan användas för att generera optimala pelardäck baserade på användarens indata. Därefter behöver de genererade lösningarna utvärderas och verifieras av en ingenjör, innan man fortsätter till nästa skede. Resultatet från arbetsflödet är att ett optimerat pelardäck med oväntade pelarplaceringar skapas genom en optimeringsprocess med indata innehållande geometri, laster, randvillkor och materialegenskaper. Detta arbetsflöde leder till ett angreppssätt som utnyttjar möjligheterna med parametrisk design och visuell programmering. Detta innebär att användaren kan påverka optimeringsprocessen för att smalna av resultatet för att hitta optimerade pelardäck baserade på projektets krav. Resultaten från strukturanalysen i arbetsflödet är inte helt tillförlitliga, vilket innebär att resultaten behöver verifieras. Sammanfattningsvis kan parametrisk design i kombination med visuell programmering och optimeringsalgoritmer skapa en mångfald av lösningar. Dessa alternativ kan inspirera ingenjörer att skapa nya konstruktionslösningar i tidiga skeden.
Sharma, Sunanda Ph D. Massachusetts Institute of Technology. "Design for the modern Prometheus : towards an integrated biodesign workflow." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/106048.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (pages 131-136).
Biodesign is a growing field that harnesses the re-engineering capabilities of synthetic biology and the principles of design to create functional products on a variety of scales. It is now possible to precisely modify and program living organisms to create products useful for medicine, fabrication, and more. These capabilities are today inspiring designers to consider, and design for opportunities associated with, the incorporation of biological and otherwise living matter into the built environment. Standard Computer Aided Design (CAD) software used in design and engineering often does not have resolution required for living systems, whereas many known bioCAD software do not allow for larger scales. In addition, simulations and animations are usually limited to a short timescale, and do not allow for predictive models over days or weeks. For creating environments in which living materials or systems, from bacterial biofilms to functional swarms, can intertwine with synthetically fabricated constructs, rapid prototyping software must be developed that can allow for both design and simulation in different conditions over time. This thesis is an attempt at creating a design methodology and finding a software platform for inclusion of living material systems in manufacturing of products on multiple scales. Existing biological CAD software is surveyed and applied to two case study projects engaging multiple scales (i.e. human scale, and architectural scale) for which the digital fabrication of living materials provides additional functionality and augments the biological or ecological environment. In the process, novel work is presented in the areas of apiary management and 3D printing with biology. Additionally, several computational approaches, including rule based and agent-based techniques, are applied to both projects and evaluated for accuracy and usability. This research took place in Mediated Matters newly constructed BL2 Wet Lab, and serves as a demonstration of research that lies at the intersection of additive manufacturing and synthetic biology.
by Sunanda Sharma.
S.M.
Awino, Hellen Rose Anyango. "Design-integrated Urban Heat Island analysis tool and workflow : development and application." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/123577.
Повний текст джерела"June 2019." Cataloged from PDF version of thesis.
Includes bibliographical references (pages 106-108).
The Urban Heat Island (UHI) effect is a well-studied phenomenon broadly attributed to human activities that transform open terrain into cityscapes. Among global 21st-century concerns, projected trends in population growth, urbanization, and regional climate change could exacerbate the warming in cities and intensify the UHI effect. Yet, microclimate analysis essential to assessing UHI intensity is often neglected, resulting in poor planning practices with adverse effects on health, comfort and energy use within cities. With buildings responsible for substantial quantities of global energy consumption and carbon emissions, this context demands climate-responsive design to achieve better-performing cities. The UHI effect presents an urban design challenge, but only recently has there been a platform for design workflow integration.
Despite existing engines that accurately evaluate UHI intensity in urban environments, architects, designers, and urban planners have often not incorporated such simulation into microclimate studies due to prohibitively expensive computational costs, disconnected workflows within unintuitive or unfamiliar platforms, and uncertainty about difficult-to-obtain urban climatology parameters. These hindrances cause impactful delay within the design feedback loop and often generate a lack of confidence in the simulation process and output. This thesis proposes a Computer-Aided-Design integrated graphical user interface for the Urban Weather Generator (UWG), an urban-scale climate prediction tool developed by Bruno Bueno to simulate microclimatic conditions of urban sites using operational weather station data.
The goal is to make the powerful and computationally cheap engine accessible to design workflows by incorporating it as a plugin within the conventional design software Rhinoceros-3D, and by coupling it with the Local Climate Zone classification scheme developed by urban climate experts lain Stewart and Timothy Oke to standardize quantitative physical descriptions of cities. The proposed update automates geometric parameter extraction and implements a reliable means of urban morphological parameter estimation. As a case study, an iterative urban-scale design exploration is analyzed for selected climates.
by Hellen Rose Anyango Awino.
S.M.
S.M. Massachusetts Institute of Technology, Department of Architecture
WELDEGIORGIS, FILMON, and ANUP RAJ DHUNGANA. "Parametric design and optimization of steel and timber truss structures : Development of a workflow for design and optimization processes in Grasshopper 3D environment." Thesis, KTH, Bro- och stålbyggnad, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277901.
Повний текст джерелаSalehi-Douzloo, Vahid. "An integrated approach to parametric associative design for powertrain components on the automotive industry." Thesis, University of Bath, 2012. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.558865.
Повний текст джерелаHasan, Talha. "Parametric analysis of part suitability in Additive Manufacturing." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113519.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (pages 79-81).
Additive Manufacturing (AM), with its bottom-up approach enables the fabrication of highly complex geometries, the combination of multiple materials to achieve specific physical properties, and the consolidation of assemblies into single parts. Although many of the prominent processes were invented 20-30 years ago, we are now seeing rapid performance improvement and the synthesis of innovative processes that greatly expand the applications of AM. That being said, there are significant barriers to entry, one being the low throughput of additive processes when compared with more conventional methods, another being the high cost of introducing AM processes into current supply chains. Identifying key use cases where AM can be of maximum benefit is pivotal to exploit its potential. This research aims to provide methodology and tools to enable rapid estimation for part suitability in AM with physics-based and predictive models. A method is presented to estimate build time for parts manufactured via the Selective Laser Sintering process, utilizing specific metrics for part geometry and machine specific parameters. Key elements of the AM cost function are identified using the estimation model, paying close attention to assessing the impact of machine cost on the final part. In summary, these tools can be expanded to allow for not only part selection in AM, but also to act as decision tools when designing equipment..
by Talha Hasan.
S.M. in Engineering and Management
Han, Dong-Hoon. "Built-In Self Test and Calibration of RF Systems for Parametric Failures." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14507.
Повний текст джерелаChacón, Pérez Jonathan 1986. "Community platform management mechanisms to support integrated Learning Design." Doctoral thesis, Universitat Pompeu Fabra, 2016. http://hdl.handle.net/10803/360849.
Повний текст джерелаLas contribuciones de esta Tesis Doctoral se enmarcan en el ámbito de las Tecnologías Educativas, y más concretamente en el campo de investigación del Diseño de Aprendizaje (LD acrónimo en inglés). Este campo se centra en dar apoyo a los profesores en la creación de actividades educativas apoyadas por ordenador teniendo en consideración sus contextos educativos. La investigación en el campo de LD ha proporcionado gran cantidad de herramientas y métodos. Sin embargo, estas herramientas todavía carecen de mecanismos que posibiliten la colaboración en comunidades de profesores involucradas en el (co-)diseño de aprendizaje. Además, el alcance de las herramientas es muy variado en cuanto a las representaciones utilizadas, los enfoques pedagógicos utilizados, y fases de diseño a las que van dirigidas (desde la conceptualización, hasta la autoría y hasta la implementación). Esta diversidad de herramientas contrasta con la falta de articulación de sus sinergias para ofrecer ecosistemas LD significativos, manejables e integrados para profesores y comunidades de profesores. Esta problemática motiva la investigación realizada en esta Tesis. La pregunta de investigación que la guía es: ¿Cómo pueden apoyar los mecanismos de gestión de plataformas comunitarias dar soporte en ecosistemas de diseño de aprendizaje integrado? Esta cuestión se aborda en la investigación más concreta de cuatro objetivos específicos. El primer objetivo es exploratorio, se centra en la comprensión de las necesidades de mecanismos de gestión en plataformas para comunidades en LD. La contribución resultante incluye la participación en la implementación y evaluación de las plataformas para comunidades en LD (LdShake, acrónimo en inglés de Learning design Sharing and co-edition, e ILDE, acrónimo en inglés de Integrated Learning Design Environment) en el contexto de proyectos españoles y europeos, así como la identificación de las necesidades abordadas en los tres siguientes objetivos de la investigación. El segundo objetivo busca permitir una gestión flexible de los procesos de (co-)diseño de aprendizaje que implique el uso de varias herramientas de LD. La contribución asociada es un modelo e implementación de los flujos de trabajo de LD (LD Workflows en inglés). Los LD Workflows se definen para permitir la representación de las herramientas de LD seleccionadas que se pueden aplicar a proyectos de LD (LD Projects, en inglés). El tercer objetivo se centra en el apoyo a la gestión de múltiples versiones de diseño de aprendizaje en escenarios de reutilización y (co-)diseño. La contribución es un modelo y una visualización basada en una metáfora del árbol familiar (family tree, en inglés). El cuarto objetivo trata la necesidad de interoperabilidad entre herramientas de (co-)diseño y plataformas de LD, y en particular, se centra en los patrones de diseño como representaciones LD estructuradas de especial interés ya que recogen buenas prácticas docentes repetibles. La contribución es una ontología de patrones que representa computacionalmente un lenguaje de patrones (centrándose en los patrones de CSCL, del inglés:Computer-Supported Collaborative Learning) y un modelo derivado junto con una arquitectura para la gestión interoperable de patrones a través de herramientas de LD. Las contribuciones se han implementado en las plataformas de comunidades de LD LdShake e ILDE mostrando su viabilidad, ofreciendo la prueba de conceptos en escenarios significativos y estudios con profesores en entornos reales.
Nguyen, Xuan Hoa. "Méthodes et modèles pour une approche de dimensionnement géométrique et technologique d'un semi-conducteur de puissance intégré. Application à la conception d'un MOFSET vertical." Thesis, Grenoble, 2011. http://www.theses.fr/2011GRENT053/document.
Повний текст джерелаThe thesis deals with the design of integrated power electronics components. In this large problematic, the thesis focuses on the methods and numerical and software tools for the geometrical and technological sizing. So, the thesis deals with the sizing carrying out compromises between the technology of a power component and the electrical characteristics of its auxiliary components, taking into account the reliability of the technological making and the impacts of the electronic environment. In this way, approaches, methods and tools are proposed to push away the existing design limits, to offer the corresponding elements for the design kit. Finally, the developed and chosen methods and approaches are applied to the sizing of a power MOSFET (VDMOS) according to several cases of specifications
Granath, Emil, and Sergen Pervance. "Modellering av BIM-objektsfamiljer - en arbetsgång för leverantörer." Thesis, Högskolan i Halmstad, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-43054.
Повний текст джерелаWithin the last 10-20 years, the usage of BIM-modeling in the construction sector has increased.BIM-modeling is used daily in different stages of the design process in Sweden. During the designprocess BIM-objects is used which is created by either the manufacturers or the planner. Theseobjects are created by a real product and is made to represent that in the program. The increase ofBIM usage has led to more disciplines that didn’t work with BIM has to adapt and start with that.The purpose of this study is to increase the understanding about the creation of object families formanufacturers. Besides the literature study about the subject we also describe the whole modellingprocess in Revit step by step. This because to give an example how it could be made.The result became a general workflow that is usable for most kinds of objects. The workflowrequires the reader to understand the different parts of an object family which we describe in thethesis.A conclusion is that a family could be built in different ways and it’s important to regularly testyour model. Furthermore, it should not contain more information than what is necessary. BIMobjectswith less information is often preferred over heavy and detailed BIM-objects. This will alsoprevent unnecessary load on the software.
Grammenis, Efstratios, and Antonios Mourikis. "Migrating from integrated library systems to library services platforms : An exploratory qualitative study for the implications on academic libraries’ workflows." Thesis, Linnéuniversitetet, Institutionen för informatik (IK), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-76971.
Повний текст джерелаZhone-WeiTsai and 蔡宗瑋. "The Performance-Based Parametric Architectural Design in BIM Integrated Workflows." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/02758846517088371946.
Повний текст джерела國立成功大學
建築學系碩博士班
101
The term - ”Parametricism” was proposed on 11th Venice Biennale in 2008, which then became a wide spreading trend in architecture domain that influence the thinking of modern design. Today, a growing number of designers widely adapt the Parametricism Design in architecture and industrial design. By using programing logic, designers can generate various Parametric Designs rapidly. However, two critical issues accompanied with the design, they are: 1) How to evaluate the design?, and 2) How to integrate with construction? In the past, design thinking normally seems as a black box. Designers' personal aesthetic or design experience are used to judge the final results, but may lead to incorrect evaluation that cause consuming works on fixing design. Moreover, the lack of integrating design may also create numerous problems on construction. In this research, we defined “Design Criteria” by setting up “Fitness Function” accordingly. Then, we fix and review the performance of Parametric Design by cooperating “Feedback Loops” with performance evaluation and simulation software, and calculate numerous optimized solutions via computers. Finally, we determine the final design via human brain. The whole process aims to transparentize the black box of design thinking, and involve both aesthetic and performance into design. To the perspective of integrating construction, BIM is an integrating platform for building information. The platform integrates information of each stages in building life cycles, which may reduce errors while transforming building information between each stages, and minimize human documentation errors. In addition, building evaluation can also adapted in early stage of design to achieve the goal of sustainable and fix the design errors in advance. In recent years, together with Parametric Design and BIM techniques is a coming trend on solving problems in digital design. In the design context of integrating BIM and Parametric Design, the major issues we are going to discuss in this research includes: 1) Develop optimized design results via Parametric Design process, and transparentize the black box of design thinking. 2)Use BIM as an integration platform for building information, which form as an integrated performance oriented building design process. We discuss the decision and feedback mechanics between human brain and computer. 3)Discuss the method of developing optimized architecture design and Parametric Design through numerous design criteria and physical environment performance evaluation principles. 4)Discuss the problems need to be solved on BIM design process. This research target the project - “Continuation of digital design building in College of Planning and Design, NCKU” as the design proposition, and process the Parametric Design to find the optimized design. The used software includes: Autodesk Vasari, Revit, NavisWorks, Rhinoceros, Grasshopper, Galapagos, Geco, Ecotect and Geometry Gym.
Datta, Ramyanshu. "Parametric testing, characterization and reliability of integrated circuits." Thesis, 2006. http://hdl.handle.net/2152/2855.
Повний текст джерелаYeh, Syh-Shiuh, and 葉賜旭. "Design of Integrated Controllers and Parametric Interpolators for Multi-Axis Motion Systems." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/48116970422053653742.
Повний текст джерела國立交通大學
電機與控制工程系
88
In general, motion control and interpolator are the most important parts in multi-axis motion systems. Therefore, six advanced motion control algorithms (Chapter 2~5) and three parametric curve interpolators (Chapter 6~8) are proposed to achieve motion accuracy under high speed operations for multi-axis motion systems in this dissertation. To reduce contouring errors due to the mismatched dynamics among multiple axes, the perfectly matched feedback control design is developed to achieve identical frequency responses among all axes by applying the stable pole-zero cancellation and complementary zeros. To decrease perturbations caused by external disturbances, a digital disturbance observer (DDOB) control and a practical nonlinear function feedback compensation algorithms are also proposed. Moreover, by applying the design of the optimal digital pre-filter (DPF) and perfectly matched feedforward control, the perfectly matched feedforward control (PMFFC) is proposed to increases bandwidth of multi-axis systems. Furthermore, the robust multi-axis cross-coupled control (CCC) is developed to improve contouring accuracy by applying estimation and compensation of the newly developed contouring error vector. The contouring error transfer function (CETF) for multi-axis motion systems is also derived to simplify the CCC design. Accordingly, the multi-axis integrated control which combines (1) feedback control, (2) feedforward control, and (3) multi-axis cross-coupled control is proposed to significantly improve both tracking and contouring accuracy. Also, systematic control design procedures are obtained by applying the error signals analysis. Furthermore, machining quality may be deteriorated by the incorrect position command generation. The second part of this thesis discusses the design of precise interpolation algorithms for parametric curve of non-uniform rational B-spline (NURBS). In the second part of this dissertation, the implementation complexity of NURBS interpolator is solved by the newly developed method which uses the common data registers to realize an efficient interpolation algorithm for NURBS. Also, based on the common data registers, the 1st and 2nd derivatives of NURBS are efficiently obtained. Moreover, the speed-controlled interpolation algorithm generates precise position commands with a constant curve speed by applying the trajectory dependent compensatory value. By estimating the curve speed corresponding to the specified chord errors, the chord-error-controlled interpolation algorithm improves the position accuracy between two interpolating points. Feasibility of all proposed motion controllers and interpolators has been verified on an industrial DYNA CNC machining center. ABSTRACT (CHINESE) i ABSTRACT (ENGLISH) iii ACKNOWLEDGMENT v TABLE OF CONTENTS vi LIST OF TABLES x LIST OF FIGURES xiii CHAPTER 1 INTRODUCTION 1 1.1 General review 1 1.2 Problem statement 5 1.3 Proposed approach 7 1.4 Experimental setup 9 1.5 Organization of thesis 10 CHAPTER 2 FEEDBACK CONTROL DESIGN FOR MULTI-AXIS MOTION SYSTEMS 12 2.1 Perfectly matched feedback control design for multiple axes 13 2.2 Digital disturbance observer (DDOB) 23 2.3 Nonlinear compensation 34 2.4 Summary 48 CHAPTER 3 PERFECTLY MATCHED FEEDFORWARD CONTROL 49 3.1 Optimal ZPETC (Yeh and Hsu, 1999c) 49 3.2 Perfectly matched feedforward control 68 3.3 Summary 76 CHAPTER 4 ROBUST CROSS-COUPLED CONTROL 78 4.1 Robust CCC (Yeh and Hsu, 1999a) 78 4.2 Cross-coupled control by using the contouring error vector 94 4.3 Multi-axis cross-coupled control 102 4.4 Summary 110 CHAPTER 5 INTEGRATED CONTROL FOR MULTI-AXIS SYSTEMS 112 5.1 Biaxial integrated control (Yeh and Hsu, 1999b) 112 5.2 Multi-axis integrated control 127 5.3 Summary 137 CHAPTER 6 IMPLEMENTATION OF NURBS INTERPOLATORS 139 6.1 Review of NURBS 139 6.2 Structure of the basis function 141 6.3 The moving data registers 144 6.4 The branch structure and the extended basis function 145 6.5 The implementation of the proposed algorithm 147 6.6 Simulation results 149 6.7 Summary 151 CHAPTER 7 CONSTANT SPEED INTERPOLATION ALGORITHM 152 7.1 Parametric curve formulation 152 7.2 The speed-controlled interpolation algorithm 154 7.3 Applications 160 7.4 Summary 168 CHAPTER 8 CHORD-ERROR-CONTROLLED INTERPOLATION ALGORITHM 169 8.1 Parametric curve formulation and interpolations 169 8.2 Chord error controlled interpolation algorithm 170 8.3 Simulation results 173 8.4 Summary 177 CHAPTER 9 CONCLUSIONS 179 REFERENCES 181 VITA 191 PUBLICATION LIST 194
Sanyal, Alodeep. "On detection, analysis and characterization of transient and parametric failures in nano-scale CMOS VLSI." 2010. https://scholarworks.umass.edu/dissertations/AAI3409842.
Повний текст джерелаOlatunde, Adebukola Olsanmi. "Design and Analysis of a Tensioner for a Belt-driven Integrated Starter-generator System of Micro-hybrid Vehicles." Thesis, 2008. http://hdl.handle.net/1807/17209.
Повний текст джерелаOsório, Filipa Peres Frangolho Crespo. "Origami surfaces for kinetic architecture." Doctoral thesis, 2019. http://hdl.handle.net/10071/20505.
Повний текст джерелаA presente tese parte da convicção de que os espaços que são capazes de mudar a sua configuração formal através de movimento podem dotar os edifícios de maior versatilidade. Através da arquitectura cinética pode ser possível a geração de edifícios adaptáveis, capazes de responder a diferentes solicitações funcionais, em termos do espaço utilizado. Esta investigação propõe a exploração de superfícies de origami, dobráveis de forma rígida, como meio de materialização de espaços reconfiguráveis através de movimento. Este tipo de superfícies tesseladas são o resultado da transformação de um elemento plano, sem capacidade estrutural que, através de dobras no material, ganha propriedades de auto-suporte. Dependendo do padrão de dobragem e segundo regras de dobragem bem definidas de acordo com uma cinemática rígida, a superfície ganha a capacidade de assumir diferentes configurações. A investigação segue uma metodologia baseada em experiências práticas e multidisciplinares apoiada em ferramentas digitais para a exploração formal e simulação. Através das experiências desenvolvidas é proposto um processo de trabalho, desde a conceptualização à construção, de estruturas cinéticas baseadas em superfícies dobráveis de origami rígido de padrão regular. O processo de trabalho proposto corresponde a um procedimento passo-apasso que permite seguir um percurso lógico que atravessa as principais áreas envolvidas, nomeadamente geometria do origami e parametrização, materiais e fabricação digital e ainda mecanismos e controle. A dissertação demonstra que as superfícies de origami dobradas de forma rígida podem ser utilizadas como estruturas dinâmicas para materializar espaços reconfiguráveis a diferentes escalas. Demonstra ainda que a utilização de sistemas pantográficos como mecanismos associados a partes específicas da superfície permite atingir um movimento sincronizado e a possibilidade de bloquear o movimento em estados específicos da dobragem.