Rozprawy doktorskie: „CAD”

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Paul, Steffen. "Spritzgußsimulation als Kopplungselement von CAD und CAE". Universitätsbibliothek Chemnitz, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-142037.

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Böhme, Carsten, i Klaus Brökel. "Konzept zum Parameteraustausch zwischen unterschiedlichen CAD/CAE-Plattformen". Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-228848.

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Einleitung und Motivation Im ZIM-Projekt Vestainnen wird die Entwicklung einer stationären Wirbelschichtfeuerungsanlage (SWSF) kleiner Leistung fortgesetzt. Dabei liegen die Schwerpunkte auf der Modellierung und Simulation der Belastungen an Anlage und den Abläufen in der Feuerung. Insgesamt sind am Projekt sieben Partner beteiligt, die parallel und weitgehend unabhängig arbeiten und die Entwicklung ihres Teilprojekts vorantreiben. Bedingt durch die Vielfalt der Aufgaben kommt bei jedem Partner eine eigene, für die Teilaufgabe geeignete Softwarelösung zum Einsatz. Um die Entwicklungsergebnisse jedoch gemeinsam nutzen zu können, müssen diese eigenständigen Teilmodelle jederzeit auf einen gemeinsamen Stand gebracht werden können, um dieselbe Baugröße und Konfiguration der SWSF abzubilden.

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Böhme, Carsten, i Klaus Brökel. "Konzept zum Parameteraustausch zwischen unterschiedlichen CAD/CAE-Plattformen". TUDpress - Verlag der Wissenschaften GmbH, 2012. https://tud.qucosa.de/id/qucosa%3A30535.

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Einleitung und Motivation Im ZIM-Projekt Vestainnen wird die Entwicklung einer stationären Wirbelschichtfeuerungsanlage (SWSF) kleiner Leistung fortgesetzt. Dabei liegen die Schwerpunkte auf der Modellierung und Simulation der Belastungen an Anlage und den Abläufen in der Feuerung. Insgesamt sind am Projekt sieben Partner beteiligt, die parallel und weitgehend unabhängig arbeiten und die Entwicklung ihres Teilprojekts vorantreiben. Bedingt durch die Vielfalt der Aufgaben kommt bei jedem Partner eine eigene, für die Teilaufgabe geeignete Softwarelösung zum Einsatz. Um die Entwicklungsergebnisse jedoch gemeinsam nutzen zu können, müssen diese eigenständigen Teilmodelle jederzeit auf einen gemeinsamen Stand gebracht werden können, um dieselbe Baugröße und Konfiguration der SWSF abzubilden.

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Kitasaka, Takayuki, Kensaku Mori i Yasuhito Suenaga. "NAVIGATION-BASED INTELLIGENT CAD SYSTEM： NAVI-CAD". INTELLIGENT MEDIA INTEGRATION NAGOYA UNIVERSITY / COE, 2006. http://hdl.handle.net/2237/10416.

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Xu, Jianfei. "CAD-based integrated simulation environment, CAD-ISE". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ60359.pdf.

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Ramos, Carla Müller. "Propriedades mecânicas e caracterização intrínseca de zircônia experimental para uso em sistemas CAD/CAM". Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/25/25148/tde-03092013-155032/.

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O objetivo deste estudo foi avaliar as propriedades mecânicas e as características intrínsecas de uma zircônia tetragonal policristalina parcialmente estabilizada por ítria (Y-TZP) experimental comparada a outras três Y-TZPs comercialmente disponíveis, a partir de blocos para sistema CAD/CAM. Os grupos foram: Y-TZP Experimental (ZE), Zirconcad (ZCA), IPS e.max ZirCad (ZMAX) e In Ceram YZ (ZYZ). Resistência flexural: 120 espécimes foram construídos para cada grupo (n=30) e submetidos ao ensaio de flexão em três pontos com velocidade de 0,5mm/min, de acordo com a ISO 6872. ANOVA a um critério foi utilizada para análise de diferenças significantes entre os grupos (α=0,05). Para a caracterização da resistência e longevidade dos materiais estudados, utilizou-se a análise estatística de Weibull por meio de dois parâmetros: o módulo de Weibull (m) e a resistência característica (δ0). Análise Fractográfica: a superfície da fratura dos espécimes foi analisada pelo microscópio eletrônico de varredura (MEV) sendo que o tamanho do defeito crítico (c) e a tenacidade à fratura (KIC) foi estimado por análise fractográfica quantitativa e sua caracterização por meio de análise fractográfica qualitativa. Espectroscopia Micro Raman: as fases da estrutura cristalina das diferentes Y-TZP foram identificadas por meio da detecção das bandas características. Houve diferença significativa (p <0,05) na resistência à flexão entre ZCA, que apresentou os menores valores, em comparação com ZE, ZMAX e ZYZ, que, por sua vez, foram semelhantes entre si. As superfícies fraturadas de todos os espécimes apresentaram marcas fractográficas características, sendo observada na superfície de ZCA uma maior quantidade de defeitos. Os valores de tenacidade à fratura de ZE foram significantemente diferente apenas para ZCA. Todos os materiais apresentaram as bandas características das fases tetragonal e monoclínica da Y-TZP. ZE mostrou-se semelhante em suas propriedades mecânicas e microestrutura às ZMAX e ZYZ, apresentando-se como um material promissor para uso em sistema CAD/CAM. ZCA apresentou os menores valores de resistência flexural e tenacidade à fratura o que sugere que a quantidade e distribuição de defeitos tem efeito sobre seu comportamento mecânico.
The aim of this study was to evaluate the mechanical properties and the intrinsic characteristics of an experimental yttrium tetragonal zirconia partially stabilized (Y-TZP) compared the other three Y-TZPs commercially available starting block for CAD/CAM system. The groups were: Experimental Zirconia (ZE), Zirconcad (ZCA), IPS e.max ZirCad (ZMAX) and In Ceram YZ (ZYZ). Flexural strength: 120 specimens were constructed for each group (n=30) and subjected to bending test at three points crosshead speed of 0.5mm/min, according to ISO 6872. ANOVA test was used to analyze significant differences between groups (α=0.05). To characterize the strength and longevity of the materials, the Weibull statistical analysis by two parameters were used: the Weibull modulus (m) and the characteristic strength (δ0). Fractographic analyzes: the fracture surface of the specimens was analyzed by scanning electron microscope (SEM) and the size of the critical defect (c) and fracture toughness (KIC) was estimated by quantitative fractographic analysis and characterization through qualitative analysis. Micro Raman spectroscopy: phases of crystalline structures of different Y-TZP were identified by detecting the characteristic bands. Statistically significant (p <0.05) in flexural strength between ZCA, which had the lowest values compared with ZE, ZMAX and ZYZ, which in turn were similar. The fractured surfaces of all specimens showed similar fractographics characteristics and values of fracture toughness for ZE were significant difference only for ZCA. All materials showed the characteristic bands of tetragonal and monoclinic phases of zirconia. ZE were similar in its mechanical properties and intrinsic, which suggests that material capable of being used for the system CAD/CAM and applied clinically as framework.

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Sguizzardi, Silvio. "Modelando o futuro: a evolução do uso de tecnologias digitais no desenvolvimento de projetos de arquitetura". Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/16/16132/tde-26012012-153604/.

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A pesquisa aborda processos criativos e produtivos da arquitetura contemporânea, a partir da história do desenvolvimento tecnológico da computação gráfica e sua influência sobre a atividade profissional do arquiteto. Baseada na análise projetual, de forma a explicitar a problemática colocada, toma como estudos de caso três projetos desenvolvidos em diferentes momentos dessa evolução: a Casa da Ópera de Sidney, na Austrália; o pavilhão H2Oexpo na ilha de Neeltje Jans, Holanda; e, o Museu Mercedes-Benz em Stuttgart, Alemanha. Através de uma análise crítica, procuramos entender as relações do uso de computadores no desenvolvimento e construção destes projetos. Para cada caso, foram analisadas as técnicas empregadas, os benefícios conquistados e inovações proporcionadas, bem como, as dificuldades, limitações e os desafios enfrentados, desde o início do desenvolvimento do projeto, ao término da execução da edificação. A leitura integral e objetiva do objeto baseia-se em acervo documental, material bibliográfico e no discurso e posicionamento de profissionais envolvidos, visando à compreensão da riqueza e diversidade do tema. O trabalho pretende dar uma contribuição ao entendimento desta relação, colaborando também para o estudos de questões projetuais ligadas as novas mídias, como forma de estabelecer uma base de conhecimento para a reflexão a respeito do uso de ferramentas da computação gráfica no universo arquitetônico.
With the history of the graphic computation technological development and its influence on the architect\'s professional activity as the starting point, the present research addresses the creative and productive processes of contemporary architecture. Based on the project analysis as a way of explaining the problem being presented, three projects developed at different times along this evolution are presented as case studies: the Sydney Opera House, Australia; the H2Oexpo Pavilion in the island of Neeltje Jans, Netherlands; the Mercedes-Benz Museum in Stuttgart, Germany. By using a critical analysis we try to understand the relations in the use of computers in the development and building of these projects. The analysis of each case included the techniques that were used, the benefits obtained and innovations provided, as well as the difficulties, limitations and challenges that were faced from the very beginning of the project development until the building was constructed. In order to better understand the wealth and diversity of the theme, the collection of documents, bibliography and statements and positioning of the professionals involved were used to obtain a full and objective reading of the object. The present work was designed to bring a contribution to understand this relation, cooperating with the study of project issues related to the new media, as a way to establish a knowledge foundation to reflect on the use of graphic computation tools in the architectural universe.

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Chaudhari, Sachin B. "DEVELOPMENT OF AN INTERNET-BASED ANALYSIS TOOL USING THE BOUNDARY ELEMENT METHOD". University of Cincinnati / OhioLINK, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=ucin971963697.

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Bao, Zhuojun. "Rechnerunterstützte Kollisionsprüfung auf der Basis eines B-rep/Polytree/CSG-Hybridmodells in einem integrierten CAD/CAM-System /". Düsseldorf : VDI-Verl, 2000. http://www.gbv.de/dms/bs/toc/319988562.pdf.

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Dhamija, Dinesh. "Macintosh - Bridgeport communications CAD/CAM". Ohio : Ohio University, 1988. http://www.ohiolink.edu/etd/view.cgi?ohiou1182784285.

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梁振邦 i Chun-bong Leung. "Conversion of features for CAD/CAM integration". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1997. http://hub.hku.hk/bib/B31237290.

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Mercer, Tim. "CAD/CAM selection for small manufacturing companies". Online version, 2000. http://www.uwstout.edu/lib/thesis/2000/2000mercert.pdf.

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Leung, Chun-bong. "Conversion of features for CAD/CAM integration /". Hong Kong : University of Hong Kong, 1997. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19634961.

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Alcaide, Pedro Queiroz Magro Moreira. "Estudo comparativo de plataformas CAD/CAE em simulação numérica". Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/19113.

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Mestrado em Engenharia Mecânica
Em Engenharia, a oferta de plataformas CAD/CAE está em constante evolução e crescimento. Com o objetivo de otimizar a escolha das plataformas a usar, o principal objectivo deste trabalho prende-se com a análise do comportamento de plataformas CAD/CAE em simulação numérica. A necessidade de verificar a precisão dos elementos finitos por testes independentes por forma a comparar o resultado torna-se cada vez mais necessário e reconhecido. Desse modo, quem trabalha na análise de elementos finitos, terá certezas quanto aos resultados que advêm. Para tal serão utilizados problemas tipo com resultados esperados para servirem de referência para posterior análise. Tendo em conta que cada um dos softwares CAD e CAE tem as suas limitações acontece que para determinados problemas, haverão restrições na simulação. A par do estudo comparativo, irá ser realizado, igualmente, um estudo de convergência para perceber qual o refinamento necessário para se obter um valor aceitável, dentro do expectável. Este estudo irá ter por base valores referência expectáveis para um determinado tipo de problema. Por último, como seria de esperar obteve-se que as plataformas dedicadas ao cálculo numérico (CAE), ao contrário dos módulos dedicados à análise de elementos finitos implementados nas plataformas CAD, fornecem melhores resultados, até porque têm na sua base de dados, um maior número de elementos para um maior tipo de problemas. Desta forma, estão mais habilitados a realizar e a ter um melhor desempenho para um maior leque de problemas com as mais variadas restrições.
In engineering, the offer of CAD/CAE platforms is constantly in evolution and growth. With the objective to optimize the choice of which platform to use, the main goal of this work is to analyze the behaviour of numeric simulation on CAD/CAE platforms. The need to check the precision of finite elements with independent tests, in order to compare the results, became more necessary and acknowledge. This way, who works in finite element analyses, will have more assurance with the results obtained. To do that, it will be used benchmark problems with expected results to serve as reference to the analysis pretended. Knowing that each CAD and CAE software has his limitations it happens that, for some problems, there will be restrictions about the simulation. Within the comparative study it will be also done a convergence study to understand which is the mesh refinement necessary to obtain a acceptable value, between the expectable. This study will have as base the reference values expected to some type of problem. Finally, as it was expected, the platforms dedicated to numeric calculation (CAE), unlike the modules dedicated to finite element analysis implemented in the CAD platforms, provides better results, because they have in its database a greater number of elements for a larger type of problems. In this way, they are more enable to realize and to have better results for a wider range of problems with various restrictions.

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ZAVALA, TORRES, i RICARDO ALBERTO. "CAD AVANZADO". Universidad Peruana de Ciencias Aplicadas (UPC), 2019. http://hdl.handle.net/10757/626633.

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Curso electivo de especialidad en la carrera de Arquitectura y de mención en Tecnologías Digitales. La automatización de los procesos de representación Digital es un estándar de la profesión, gestionar y utilizar tecnologías que permitan optimizar y ejercer una alta performance que los proyectos requieren, sobre técnicas avanzadas y especializadas que permiten acelerar procesos. Propósito Así, por medio del presente curso, el estudiante desarrollará habilidades para la comprensión de la gestión del proyecto creando y gestionando proyectos variables y paramétricos, con el fin de personalizar, manipular y transformar información técnico-arquitectónica del contexto de la cultura del Building Information Modeling (BIM). Esta asignatura busca contribuir al desarrollo de la competencia específica Pensamiento Crítico y Representación (Critical Thinking and Representation) en el nivel 2. Tiene como requisito la asignatura de Conocimientos del CAD.

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Baker, Tyson J. "Attribution Standardization for Integrated Concurrent Engineering". Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd873.pdf.

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Karlsson, Catarina. "Användaranpassning av instruktioner". Thesis, University of Skövde, School of Humanities and Informatics, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-2955.

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Detta arbete har syftat till att ta reda på vad som är viktigt att tänka på vid utformning av instruktioner för CAD-användare. Som praktikfall har en studie gjorts på Volvo IT där deras instruktioner för CAD/CAM/CAE-systemet CATIA V5 har granskats. Undersökningen mynnade ut i en användarstudie där erfarna användare av systemet fick möjlighet att diskutera den support som finns i dagsläget samt ställa krav på framtida instruktioner. Kraven som togs fram har legat till grund för riktlinjer för hur morgondagens instruktioner skulle kunna göras mer användaranpassade.

Några områden som är viktiga att ta hänsyn till är bland annat: att ta tillvara på användarnas erfarenhet, involvera användarna vid framtagandet av instruktionerna, ta reda på hur instruktionenrna läses samt skapa rubrikter som underlättar informationssökning för användarna.

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Carvalho, Adriana Oliveira 1981. "Influence of restorative material and technique on the mechanical performance of indirect restorations of endodontically treated molars or not = Influência do material e técnica restauradora na performance mecânica de coroas indiretas sobre molares tratados endodonticamente ou não". [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/287831.

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Orientadores: Marcelo Giannini, Pascal Magne
Tese (Doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
Made available in DSpace on 2018-08-21T22:55:10Z (GMT). No. of bitstreams: 1 Carvalho_AdrianaOliveira_D.pdf: 96375930 bytes, checksum: 98085bf2a4f1941f9510f1ba4c7d0a85 (MD5) Previous issue date: 2013
Resumo: Objetivos: Comparar a resistência à fadiga (RFAD) e à fratura (RFRA), o modo de falha e o desgaste do antagonista em contato com os diferentes designs de coroas CAD/CAM utilizadas para restaurar molares tratados endodonticamente/TE ou não, fabricadas em cerâmica feldspática/FEL, dissilicato de lítio/DL ou resina nano cerâmica/RNC e fixadas com cimento resinoso auto-adesivo. Materiais e Métodos: Para os capítulos um e dois, 90 molares foram preparados e restaurados com coroas com espessura de 1,5mm ou 0,7mm respectivamente, em FEL, DL ou RNC. Para os capítulos três e quatro, outros 90 molares tiveram a porção coronária removida (nível da junção cemento-esmalte), foram TE e restaurados utilizando três diferentes designs de núcleo de preenchimento em resina composta/NPRC (4-mm de altura, 2-mm ou sem núcleo de preenchimento/endocrown) associados a coroas em RNC ou DL respectivamente. Para o capítulo cinco, grupos dos capítulos um (RNC/1,5mm e DL/1,5mm), três (NPRC de 4-mm de altura/RNC) e quatro (NPRC de 4-mm de altura/DL) foram combinados. Todas as coroas do estudo foram confeccionadas pelo sistema CAD/CAM Cerec 3 e cimentadas com o cimento RelyX Unicem II Automix. As coroas em FEL e DL foram previamente condicionadas com ácido fluorídrico e silanizadas. As coroas em RNC, assim como os dentes preparados foram apenas jateados. Todas as restaurações foram submetidas ao teste de RFAD com um carregamento cíclico isométrico aplicado por uma esfera de resina composta. O carregamento começou com cargas de 200N (5.000x) seguidos por estágios de 400, 600, 800, 1000, 1200 e 1400N a um máximo de 30.000 ciclos cada. Os espécimes foram submetidos ao carregamento até a fratura ou por no máximo 185.000 ciclos. Os espécimes que resistiram a todos os ciclos foram novamente testados axialmente até a falha ou até uma carga máxima de 4.500N. Os espécimes foram classificados quanto ao modo de falha em: catastrófica, possivelmente reparável e reparável. Os grupos foram comparados utilizando uma análise de sobrevida para o teste de RFAD e t-test ou ANOVA para o teste de RFRA. Comparações Post hoc também foram utilizadas para comparar os diferentes grupos. Resultados: A taxa de sobrevida das coroas sobre os molares não TE foram: 80% (RNC/1,5mm), 6,6% (RNC/0,7mm), 93,3% (DL/1,5mm), 13,2% (DL/0,7mm), 6,6% (FEL/1,5mm) e 0% (FEL/0,7mm). A RFRA das coroas com 1,5mm de espessura foi: 3122N-RNC, 3237N-DL e 2500N-FEL. As coroas cimentadas sobre molares TE tiveram taxa de sobrevida e RFRA respectivamente de: 53%/2969N (RNC-4mm de altura), 100%/3181N (DL-4mm de altura), 87%/2794N (RNC-2mm de altura), 93%/3759N (DL-2mm de altura), 87%/2606N (RNC-endocrown) e 100%/3265N (DL-endocrown). No teste de RFAD houve falha catastrófica apenas para as coroas confeccionadas em RNC-4mm. Após o teste de RFRA todos os espécimes falharam catastroficamente. As coroas em RNC induziram menor desgaste aparente ao antagonista. Conclusão: Apenas as coroas FEL-0,7mm não sobreviveram além da máxima força mastigatória humana. Para os dentes não TE, as coroas em DL e RNC com espessuras de 1,5mm tiveram o melhor desempenho mecânico. Para os molares TE, uma maior carga para fratura foi requerida com o uso de coroas em DL-2mm. O tratamento endodontico não teve influência sobre a RFAD de molares restaurados com coroas CAD/CAM de DL, mas diminuiu a performance das RNC
Abstract: Objectives: To evaluate the fatigue resistance, load-to-failure, failure mode and antagonistic wear in contact with different designs of full CAD/CAM crowns made of feldspathic ceramic/FEL, lithium disilicate/LD or resin nano ceramic/RNC. These prosthetic materials were used to restore endodontic treated molars or not, using a simplified cementation process. Materials and Methods: Chapters One and Two used 90 molars, which had a standardization of full crown preparation and teeth were restored using crown made of FEL, LD and RNC with thickness of 1.5mm or 0.7mm, respectively. Chapters Three and Four used 90 molars decoronated at the level of CEJ, endodontically-treated and restored using three different Filtek Z100 adhesive core build-ups designs (4-mm-build-up; 2-mm-build-up; and no buildup/ endocrown preparation) combined to crowns made of RNC and LD, respectively. For Chapter Five, groups of Chapters One (RNC/1,5mm and LD/1,5mm), Three (4-mm-build-up/RNC) and Four (4-mm-build-up/LD) were combined. All molars were restored using the Cerec 3 CAD/CAM system and cemented with RelyX Unicem II Automix cement. FEL and LD restorations were conditioned by hydrofluoric acid etching and silanated. RNC restorations as well as all preparations were treated only with airborne-particle abrasion. All restorations were submitted to cyclic isometric loading applied through a composite resin hemi-sphere. The cyclic loading started with a load of 200N (x5000 cycles), followed by stages of 400, 600, 800, 1000, 1200, and 1400N at a maximum of 30,000 cycles each. Specimens were loaded until failure or for a maximum of 185,000 cycles. Survived specimens were axially loaded until failure or to a maximum load of 4,500N. After load tests, the specimens were analyzed for the failure mode: "catastrophic" tooth/root failure, "possibly reparable" failure and "reparable" failure. Groups were compared using the life table survival analysis (fatigue test) and the t-test, one-way or two-way ANOVA for the survived samples loaded to failure. Pairwise post hoc comparisons were used to compare the different groups. Results: The survival rates for the vital teeth were: 80% (RNC - 1.5mm), 6.6% (RNC - 0.7mm), 93.3% (LD - 1.5mm), 13.2% (LD - 0.7mm), 6.6% (FEL - 1.5mm) and 0% (FEL - 0.7mm). Post-fatigue load-to-failure for 1.5mm crowns ranged between 3122N (RNC), 3237N (LD) and 2500N (FEL). The survival rate and post-fatigue load to failure for non-vital teeth were 53% / 2969N (4mm - RNC), 100% / 3181N (4mm - DL), 87% / 2794N (2mm - RNC), 93% / 3759N (2mm - DL), 87% / 2606N (endocrown - RNC) e 100% / 3265N (endocrown - LD), respectively. There were only catastrophic failures for 4mm-build-up RNC during the fatigue test. All of specimens in the load-to-failure test exhibited non-restorable catastrophic fractures. Crowns made of RNC seemed to generate the least amount of antagonistic wear. Conclusions: FEL crowns with 0.7mm of thickness didn't survive beyond the maximum masticatory forces. RNC and LD crowns with 1.5mm thick had the best performance on vital teeth. LD crowns combined with short build-ups (2mm) were associated to highest loads to failure. Endodontic treatment did not influence the fatigue resistance of molars restored with LD CAD/CAM complete crowns but decreased the performance of RNC crowns
Doutorado
Materiais Dentarios
Doutora em Materiais Dentários

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Auradkar, Rajendra V. "A complete geometric and topologic file structure". Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-11102009-020052/.

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Kutsuma, Ogata Martín Javier. "Diseño de un sistema de climatización en aula CAD-CAE". Bachelor's thesis, Pontificia Universidad Católica del Perú, 2011. http://tesis.pucp.edu.pe/repositorio/handle/123456789/865.

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El presente trabajo tuvo como finalidad proponer un sistema de climatización de aire, con el fin de mejorar las condiciones de trabajo en el Laboratorio CAD-CAE y los espacios contiguos (INACOM y oficina). Para esto se analizaron las condiciones previas a la instalación del sistema, recopilándose información trascendente, como las condiciones climáticas. Posteriormente, se establecieron las condiciones ideales, para luego especificar las condiciones que deseadas en el lugar. En el segundo capítulo se refiere a la evaluación de cargas térmicas. Se obtuvo que el 42% de la carga térmica se debe a la fenestración, el 36% por cargas internas, el 8% de la carga es transferida del exterior por las superficies, el 9% se debe a la carga de ventilación y por último el 5% es por infiltración de aire al ambiente acondicionado. Luego en la segunda parte del capítulo, se determinó que es necesario un equipo que extraiga 22.37kW de carga de enfriamiento del laboratorio, 5.22kW del INACOM y 6.29kW de la oficina. Además este debe renovar el aire con una frecuencia de 1.34m3/s en el laboratorio, 0.4 m3/s y 0.6 m3/s en el INACOM y la oficina respectivamente. En el tercer capítulo se seleccionaron los equipos de acuerdo a lo establecido en el capítulo anterior, empleándose manuales, así como catálogos e información complementaria que permita la adecuada selección del equipamiento. Finalmente detallo una evaluación económica referente al costo del sistema seleccionado (US$14,296.70 inc. IGV) y se estableció una comparación con el equipo actual que funciona en dicho establecimiento el cual está sobredimensionado según la capacidad de sus equipos.
Tesis

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Balbi, Tadeu Antonio Peçanha. "Estudo e projeto de sistema CAE/CAD para a ACESITA". reponame:Repositório Institucional da UFSC, 1991. https://repositorio.ufsc.br/handle/123456789/111899.

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BRINO, MARCO. "CAD-CAE integration and isogeometric analysis: trivariate multipatch and applications". Doctoral thesis, Politecnico di Torino, 2015. http://hdl.handle.net/11583/2588580.

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This PhD thesis is focused on the issues related to one of the critical steps during the lifecycle of a product design and manufacturing process: the transition between the geometrical and functional definition of a product, and the virtual prototyping with numerical simulations, also known as CAD (Computer-Aided Design) / CAE (Computer-Aided Engineering) transition. The isogeometric methodologies developed by Hughes et Al. [1, 2] has the ambition to close the gap in CAD/CAE integration, allowing the two environments to underlay on the same framework, taking advantage of the isoparametric concept, widely used in Finite Elements world, coupled with the Non-Uniform Rational B-Splines (NURBS) that are a standard in CAD systems in the mathematical representation of geometries. Even though the first paper was published 10 years ago, the method is not yet used in industrial applications and only few commercial software are able to handle isogeometric elements. In this thesis a step towards the possibility of application in industry by developing a multi-patch coupling method where the geometry at the interface does not allow a compatible mesh. This improvement opens new frontiers for applications in both static and dynamic solutions. Another issue that is analysed in this thesis is the possibility to improve the geometry-to-analysis integration by conversion of the information that comes from CAD software, in terms of representation of the external surfaces, to solid information that is necessary to be suitable for a structural simulation.

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黃景維 i King-wei Wong. "An intelligent object-oriented feature-based system for CAD/CAM integration". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1994. http://hub.hku.hk/bib/B30098774.

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Virk, Gurmej Singh. "A computer-aided learning and design system for control engineering". Thesis, University of Sheffield, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364270.

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Oung, Jianjun. "Design and implementation of an object-oriented geometric constraint solver". [Gainesville, Fla.] : University of Florida, 2001. http://etd.fcla.edu/etd/uf/2001/ank7123/thesis.pdf.

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Thesis (M.S.)--University of Florida, 2001.
Title from first page of PDF file. Document formatted into pages; contains ix, 82 p.; also contains graphics. Vita. Includes bibliographical references (p. 78-81).

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Wong, King-wei. "An intelligent object-oriented feature-based system for CAD/CAM integration /". Hong Kong : University of Hong Kong, 1994. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20667528.

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Jašek, Michal. "Analýza komory diferenciálního čerpání EREM pomocí systému Cosmos FloWorks". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217855.

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The paper outlines fundamental issues of electron microscopy and models three selected shapes of the differential chamber using the SolidWorks system. The models are then analysed using Cosmos FloWorks with regard to vacuum pumping. The aim is to find a model with minimum pressure in the electron beam trajectory and hence the least dissipation.

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Ambrož, Václav. "Analýza rozložení tlaků v detektoru SE pomocí systému Cosmos FloWorks". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217936.

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The paper briefly outlines high-pressure electron microscopy and then uses SolidWorks to model the scintillation detector, analysing pumping of gas in the EREM sample chamber at different pressure levels using Cosmos FloWorks. The results of the analysis are assessed with regard to minimising pressure in the trajectory of the primary electron beam in order to prevent dissipation of electrons on the gas molecules.

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Sheik, Meeran A. "Automated feature recognition from 2D CAD models". Thesis, Cranfield University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.281227.

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Kärral, Kenan. "3D CAD API". Thesis, Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-23536.

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Costa, Samuel Fontes da. "CAD para mamografia". Master's thesis, Universidade de Aveiro, 2008. http://hdl.handle.net/10773/2044.

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Mestrado em Engenharia Electrónica e Telecomunicações
O cancro da mama é actualmente uma das principais causas de morte entre as mulheres. Os sistemas de diagnóstico auxiliado por computador permitem o apoio aos radiologistas, com o objectivo de melhorar a precisão do diagnóstico, fornecendo uma \segunda opinião". Este trabalho apresenta uma metodologia para classificação de nódulos mamários com base em técnicas de processamento de imagens digitais para a extracção de características de textura e forma. As imagens mamográficas digitais utilizadas foram obtidas a partir da base de dados de domínio público miniMIAS (do inglês, Mammographic Image Analysis Society). Esta base de dados é constítuida por um total de 322 mamogramas, de onde foram recortados 67 regiões de interesse que continham massas. O contorno das massas foram interactivamente delineados, com o suporte do algoritmo live-wire. Assim, foram extraídas cinco características de forma baseadas no contorno e oito características de textura baseadas na matriz de co-ocorrência entre níveis de cinza, com o objectivo de caracterizar as imagens. É proposta a aplicação e estudo de redes neuronais artificiais, de modo a classificar as massas em benignas e malignas. Assim sendo, foram testadas várias redes neuronais, variando os conjuntos de entrada e as topologias das redes de modo a obter a melhor classificação. Os resultados foram comparados em termos da área Az sob a curva ROC. ABSTRACT: Breast cancer is currently one of the leading causes of death among women. Systems designed for computer-aided diagnosis provide support to radiologists, with the aim of improving the accuracy of diagnosis by providing a \second opinion". This thesis presents a methodology for classification of breast nodules, based on techniques for processing digital images developed for the extraction of texture and shape features. The digital mammographic images were obtained from a public domain database, \miniMIAS". This database as a total of 322 mammograms, from where 67 interest zones that contained masses were selected. The contours of these masses were interactively outlined with support from a \live-wire"algorithm. Then five shape features were computed as well as eight texture features based on the co-occurrence matrix. We assessed the application of artificial neural networks, in order to classify the masses in benign or malignant. Several neural networks topologies and learning algorithms were evaluated in order to obtain the best classify performance. The results were then submitted to a comparison in terms of the Az area and under the ROC curve.

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Brännstam, Johanna. "Molnbaserade CAD-system". Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-161974.

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Är du trött på att dina CAD-filer (Computer-aided design) har sparats på fel ställe så du inte kommer åt dem? Är du trött på att behöva sitta vid samma dator för att komma åt dina dokument? På senare tid har CAD-program kommit in som molnkopplade eller molnbaserade program och företag, så som Sigma Industry East/North, funderar på att ha ett standardprogram som är molnbaserat eller kopplat till molnet för att underlätta för sina konsulter. Här väljs två CAD-program som ska jämföras bland de CAD-program som finns, vilket blev Fusion 360 och Onshape. Dessa två program undersöks i syfte för jämförelse i aspekterna: kostnad, arbetsprocess, utbildning i programmet, mappstruktur och arkivering, och möjligheten till att lägga till funktioner så som FEM (finita elementmetoden). Utöver dessa aspekter utsätts även programmen för ett prov: en generisk detalj är modellerad och ritningar skapas. Detta görs för att jämföra funktionerna hos programmen, som är: flerkomponentsmodellering, sheet metal, ritning, gängor och textinristning. Genom att jämföra dessa resultat så märktes att programmen är väldigt lika men skiljer sig åt i 3 viktiga aspekter: pris, kan arbetas med offline, och anpassningsbarhet. Fusion360s licens kostar hälften så mycket som Onshapes billigaste betal-licens, kan välja månadsvis betalning, kan arbeta i programmet utan internetuppkoppling, och det går att anpassa betalning för FEM-funktionalitet efter användning. Genom att jämföra undersökningen så blir rekommendationen för små till medelstora företag Fusion 360.
When working with computer-aided design (CAD), are you tired of CAD-files being saved, where you cannot access them? Are you tired of having to sit at a specific computer to work on your drawings? Recently, cloud-basedCAD software started to become available and companies, such as Umeå-based Sigma Industry East/North, consider settling on a standard cloud-basedor cloud-connected program to facilitate the work of theirconsultants. In this bachelor thesis, two of the most promising cloud-basedCAD programs, Autodesk Fusion 360 and Onshape, are selected among the available CAD software, and investigatedwith respect to parameters such as price, program handling, user education, folder structure and archiving, and the ability to perform finite element method (FEM) analysis. In order to substantiate the evaluation, the two programs are exposed to a test. A generic work piece is modeled and drawn that allows comparison regarding multicomponent modeling, sheet metal, drawings, threads and text engraving. It was found that, in general, the two different programs perform similarly, but that they differ in at least three important aspects: price, ability to work offline and user ability. Fusion 360 costs half the price of a comparable Onshape license, can be payed monthly, does not require internet, and allows the cost FEM functions to be individually adapted. Basedon this analysis, Fusion 360 is recommended as cloud-based CAD-software for small-to medium-sized companies.

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Donayre, La Rosa Eduardo Darío, Saldaña Coralith Guzmán i Abarca Augusto José Polanco. "Cloth Bags – CAD". Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2019. http://hdl.handle.net/10757/626265.

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El objetivo del presente trabajo académico es explicar las razones por las cuales es necesario el cambio en el consumo de productos plásticos por ecológicos con la finalidad de preservar los recursos naturales. El uso excesivo de productos no reciclables está dañando el medio ambiente, no solo en nuestro país, sino en todo el mundo. Es por ello que, hemos desarrollado un proyecto en el cual se pueda eliminar de manera progresiva el uso de bolsas elaboradas, en su mayoría, con polipropileno y plástico industrial. A diario, vemos que todo lo que cargamos tiende a estar dentro de un envase plástico. Estas bolsas se usan solo por unos minutos para transportar productos desde los supermercados, bodegas y tiendas hacia nuestras casas u oficinas, pero se quedan en el planeta por 150 años durante su proceso de degradación. Según el Ministerio del Ambiente (2015), cada año, se usan 791 toneladas de bolsas plásticas en todo el Perú. Solo en supermercados se usan un millón-seiscientos mil bolsas cada día. La propuesta presentada son bolsas reusables que duran años y son hechas a base de tocuyo y yute con trazos de tela reciclada, ayudando así a conservar el ecosistema. Nuestro modelo de negocio mejores alternativas en el mercado respecto a las actividades diarias de consumo masivo en las principales cadenas de tiendas y retail. Obteniendo resultados satisfactorios y dando muestras de innovación, realizando un proyecto viable y beneficioso para la empresa y público en general.
This academic study aims to explain the reasons why the change in the consumption of plastic products for ecological in order to preserve natural resources is necessary. Excessive use of non-recyclable products is damaging to the environment, not only in our country but around the world. Therefore, we have developed a project in which we prove we can romove progressively the use of plastic bags, mostly made of polypropylene. Daily, see everything we carry tends to be inside a plastic container. These bags are used only for a few minutes to transport products from supermarkets, warehouses and shops to our homes or offices, but the remain on the planet by 150 years during the degradation process. According to the Ministry of the environment (2015), each year we use 791 tons of plastic bags in Peru. Only in supermarkets, one million six hundred thousand bags are used every day. The use of reusable bags could last for years and they are made of tocuyo and jute with recycled fabric strokes, thus managed to preserve the ecosystem. Our business model better alternatives in the market regarding the daily activities of mass consumption in major chains of stores and retail sales. Satisfactory results and showing signs of innovation, performing a project viable and beneficial for the company and the public in general.
Trabajo de investigación

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Pennington, Sandra Lynn. "A software engineering approach to the integration of CAD/CAM systems". Diss., This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-07102007-142514/.

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Lucca, Rinaldo Tessuti de. "Avaliação de programas CADD no setor de projeto arquitetônico: etapas legais de projeto". Universidade de São Paulo, 1999. http://www.teses.usp.br/teses/disponiveis/18/18131/tde-28082003-100143/.

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Esta dissertação aborda o processo de implantação das tecnologias CAD/CADD nos escritórios de arquitetura no Brasil a partir dos anos 80, analisando avaliações já realizadas sobre estes programas, identificando também as necessidades da produção do projeto arquitetônico, estabelecendo critérios mínimos para o arquiteto escolher seu programa CAD/CADD.
To choose the CAD/CADD softwares is one of the gratest dificult that architects hava nodaways. The brazilian architects use these softwares since the 80's, but in the begginings the draws was a crafmanship because the real use of the software was still obscure. Decide for a software, its the real problem that architects have to face. Which one to use, how and way. This process is lone, hard and sometimes expensive. How to introduce the tecnology, analysing the evaluation that have been done about the architecture softwares of CADD and also identify the process, point the basic needs in an architect design is what this master science is about.

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Ford, D. G. "A CAD/CAE aid to design of a machine tool system". Thesis, University of Huddersfield, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280654.

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Добротворский, Сергей Семенович, Евгения Владимировна Басова i Роман Витальевич Головатый. "Опыт создания современных технологий с применением передовых CAD/CAM/CAE систем". Thesis, НТУ "ХПИ", 2015. http://repository.kpi.kharkov.ua/handle/KhPI-Press/20166.

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Krzywinski, Sybille. "Verbindung von Design und Konstruktion in der textilen Konfektion unter Anwendung von CAE". Dresden TUDpress, 2005. http://deposit.ddb.de/cgi-bin/dokserv?id=2671904&prov=M&dok_var=1&dok_ext=htm.

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Andersson, Björn, i Andreas Fransson. "Användning av CAD-data vid NC-programmering". Thesis, Karlstad University, Faculty of Technology and Science, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-934.

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The degree project is performed at Metso Kamfab. The production is aimed on machines everything from handling of fiber to paper pulp. Metso Fiber and Kamfab are using Pro/Engineer for design and blueprint production. The processing department types the NC-programs in notepad on the basis of the blueprints, the CAD-dates that already is there are not used. The aim with the work is to study if Kamfab can use CAM-system for processing and production of programs for their NC-machines. The objective in this project is to make NC-programs that functions in three special machines.

CAD/CAM forms the link between design and production. In a CAD/CAM-system the geometry is created in CAD and can be used directly in CAM for processing. In CAM CL-data is created and after that translated with a postprocessor to NC-code. The postprocessor is used also as a watch over function.

Three machines were chosen as experiment items for introducing of CAD/CAM. These are a 7-axis mill, a combined mill/turn and a 3-axis mill. The 7-axis mill and the mill/turn were chosen because they are the most advanced machines. The 3-axis mill was chosen because there was available time in it. Products that were tested were trough, pillar, housing and a part for a toolchanger.

When processing the trough ”Surface-Mill” was chosen and a lead-angle was set in the parameters. It was most drilling and a little face milling on both the pillar and the housing.

In order to test programs a postprocessor was borrowed that translated CL-data to Heidenhain code. During the test run errors were detected in the programs. This depends on that the postprocessor not where customized for the machine. A postprocessor developed by ourselves was also tested, this one didn’t work because the machine's NC-system couldn’t read ISO standard code.

A study visit was done at Structo in Kristinehamn where EdgeCAM is used for NC-processing. It works well and it allows quicker and safer programming.

Pro/Engineer is powerful and has a lot of possible adjustments. This makes it complex and takes time to learn. To use Pro/Engineer´s CAM-part it is necessary to have basic knowledge about the CAD-part. Depending on this many companies uses for example EdgeCAM that almost is a pure CAM-system.

The processing of the three components functioned well in Pro/Engineer, we could process the components after demands. The problem was to get working programs. An advantage with using CAM is that you can simulate toolpaths. Through this you can see if the tool collides and it also makes it possible to optimize toolpaths. Today, it is a lot of waiting time in the milling machine FPT34 because programs are not completed. This waiting time would be reduced or even eliminated with the aid of CAM.

Examensarbetet är utfört på Metso Kamfab. Deras tillverkning är inriktad på maskiner allt från hantering av flis till framställning av pappersmassa. Metso Fiber och Kamfab använder Pro/Engineer för konstruktion och ritningsframtagning. Vid maskinberedning skrivs sedan NC-program utifrån ritningen, alltså används inte de CAD-data som redan finns. Syftet med arbetet är att undersöka om Kamfab kan använda CAM-system för beredning och framtagning av program till deras NC-maskiner. Målet i detta projekt är att ta fram NC-program som fungerar i tre speciella maskiner. Dessutom skall två CAM-system jämföras, dessa är Pro/Engineer´s CAM-system och EdgeCAM.

CAD/CAM bildar kopplingen mellan konstruktion och produktion. I ett CAD/CAM-system kan geometrin som skapats i CAD-delen direkt användas i CAM-delen för beredning. Vid CAM beredning skapas CL-data som översätts med en postprocessor till NC-kod. Postprocessorn används också som en övervakande funktion.

Tre maskiner har valts ut som försöksobjekt för införande av CAD/CAM. Det är en 7-axlig NC-fräs, en kombinerad svarv/fräsmaskin och en 3-axlig fräs. Anledningen till att den 7-axliga maskinen och svarv/fräsmaskinen valdes var att de betraktas som de mest avancerade maskinerna. Den enklare 3-axliga maskinen valdes för att det fanns ledig tid i den. Produkter som testades var tråg, pelare, kikhus och en detalj till en verktygsväxlare.

Vid beredning av tråget valdes ”Surface-Mill” och i parametrar ställdes en framlutning av verktyget in. Denna metod kallas skränkfräsning. Både för pelare och kikhuset var det främst borrning och lite planfräsning.

För att kunna testa program lånades en postprocessor som översatte CL-data till Heidenhain kod. Under testkörningen upptäcktes fel på programmen. Detta berodde på att postprocessorn inte var anpassad till maskinen. En egenutvecklad postprocessor testades också, denna fungerade inte pga. att maskinens styrsystem inte klarade ISO-standard kod.

Ett studiebesök gjordes hos Structo i Kristinehamn där EdgeCAM används för NC-beredning. Det fungerar bra att få fram program, det medför snabbare och säkrare programmering.

Pro/Engineer är kraftfullt då det finns oerhört många inställningar och justeringar att tillgå. Samtidigt är det ganska komplext och det tar tid att lära sig. För att använda Pro/Engineer´s CAM-del krävs det att man är kunnig i CAD-delen. Beroende på detta så använder många företag exempelvis EdgeCAM som i princip är ett rent CAM-system.

Beredningen av de tre komponenterna fungerade bra i Pro/Engineer, man kunde bearbeta komponenterna efter önskemål. Problemet var att få fram fungerande program. En fördel med att använda CAM är att man kan simulera verktygsvägar. Genom detta kan man se om verktyget krockar och det möjliggör också optimering av verktygsvägar.

Idag är det en hel del väntetid i fräsverket pga. att program inte finns färdiga. Denna väntetid skulle kunna reduceras eller till och med elimineras med hjälp av CAM.

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Ferneda, Amauri Bravo. "Integração metrologia, CAD e CAM: uma contribuição ao estudo de engenharia reversa". Universidade de São Paulo, 1999. http://www.teses.usp.br/teses/disponiveis/18/18135/tde-19122001-093341/.

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Engenharia reversa é o conceito de se produzir uma peça tomando como base um original ou modelo físico existentes, sem o uso de desenhos de engenharia. Empresas se voltam para a tecnologia da Engenharia Reversa como um complemento valioso para toda a gama de ferramentas CAD/CAM que elas possuem, devido às dificuldades encontradas quando se necessita trabalhar com superfícies de forma livre. Desta forma, faz-se necessária uma ferramenta que proporcione a inserção das formas deste modelo em um sistema CAD, de forma que se possa usufruir de todas as possibilidades, oferecidas por ele. Neste trabalho, é apresentada uma revisão bibliográfica que aborda a engenharia reversa desde sua origem até as técnicas avançadas existentes atualmente, ou seja, apresentando equipamentos e sistemas específicos usados atualmente para a prática de engenharia reversa. Mostra-se um sistema de engenharia reversa, que foi projetado e implementado realizando a integração desde uma máquina de medir 3 coordenadas até um centro de usinagem CNC com o auxílio de um software CAD comercial, o qual possui módulo de CAM integrado. São apresentados também 3 estudos de casos.
Reverse engineering is the concept of making a part based on an original or existing physical model, without engineering drawings. Companies are using reverse engineering technology as a valuable complement to many of their CAD/CAM tools, due to their difficulties of working with free-form surfaces. It is necessary a tool which provides the insertion of the model forms in the CAD system, therefore enabling to take advantages of all possibilities offered by the system. The Reverse Engineering has developed beyond the traditional copy milling. It is presented a review of the reverse engineering since its origin until recent advanced techniques, where the equipments and specific systems used for reverse engineering practice nowadays are showed. In this work a reverse engineering system has been designed and implemented, which is accomplished by the integration from the coordinate measuring machine until a CNC machining center, by using a commercial CAD software with integrated CAM module. In order to validate the system developed, three case studies are also presented.

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林世銘 i Sai-ming Lam. "Recognition of machining features: a hybrid approach". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31240458.

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Hoppe, Hugues. "Surface reconstruction from unorganized points /". Thesis, Connect to this title online; UW restricted, 1994. http://hdl.handle.net/1773/6924.

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Lam, Sai-ming. "Recognition of machining features : a hybrid approach /". Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B2160745X.

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Whelan, Peter Timothy. "CAD/CAM data base management systems requirements for mechanical parts". Diss., Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/17692.

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Xue, Sukui, i 薛苏葵. "Voice-enabled CAD system". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45461405.

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Goyal, Pragun. "CAD enabling smart handtools". Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/95603.

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Thesis: S.M., Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 87-89).
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, pointing, browsing, etc, they are not designed for the purpose of mediating the flow of information from and to a physical workpiece. Traditional input interfaces are limited in the sense that they lack a direct connection with the workpiece, forcing the user to translate information gathered from the workpiece before it can be input into the computer. A similar disconnect also exists in the realm of output from the computer. On one extreme, the screen as an output interface forces the user to interpret and translate information conveyed graphically to the context of the workpiece at hand. On the other extreme, devices like CNC machines and 3D printers lack a way for the user to engage with the fabrication and to iteratively change design parameters in realtime. In this work, I present, two handtools that build on the philosophy of Free-D ([1] and [2]), a smart milling tool recently developed in our research group. to create a similar interface between Computer Aided Design and the physical workpiece, in entirely different application domains. The two handtools are BoardLab and Nishanchi. BoardLab is a smart, context-aware oscilloscope probe that can be used to dynamically search for just-in-time information on electronic circuit board design data and to automatically annotate the design data with measurements and test data. Nishanchi is a handheld inkjet printer and 3D digitizer that can be used to print raster graphics on non-conformable surfaces.
by Pragun Goyal.
S.M.

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Gyllsdorff, Joakim, i Joakim Lundström. "Virtuell Kuggbearbetning i CAD". Thesis, KTH, Maskinkonstruktion (Inst.), 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-171946.

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En betydande kostnad inom fordonsindustrin är transmissionskomponenter. I takt med attantalet kuggväxlar ökar så ökar också kraven på kugghjulen, med avseende på hållfasthet,ljudgenerering och förluster. För att öka kunskaperna om kugghjulstillverkning och behållaavancerad kugghjulstillverkning i Sverige har ett landsomfattande forskningsprogram,KUGG, startats upp. Det övergripande målet med KUGG är att kunna möta dagens krav utanatt öka produktionskostnaderna. I dagsläget består kugghjulsframställningen av flerabearbetningssteg, allt från grovbearbetning till finbearbetning. Dessa bearbetningssteg ärviktiga för att erhålla kraven som ställs på kuggarna i form av ytfinhet. Med en bra ytfinhetminskar förlusterna och ljudgenereringen.För att bidra till ökad förståelse om kugghjulstillverkningen har ett försök att åstadkomma enmetod för att virtuellt bearbeta kugghjul gjorts. Den del i bearbetningsprocessen som på ettvirtuellt sätt har simulerats är fräsningen av rakskurna kugghjul med snäckfräs. Utformningenav snäckfräsen avgör vilken kuggprofil som erhålls, vilket ställer stora krav på snäckfräsen.Resultatet av den virtuella kuggbearbetningen visade att det är möjligt att med hjälp av enmodern dator generera en kuggprofil bestående av interferenser, kollisionsvolymer, med enanimering. Interferenserna måste sedan tas bort manuellt med ett fleroperationskommando iSolid Edge vilket är tidskrävande.Det är efter borttagandet av interferenserna inte möjligt att studera ytfinheten på kugghjuletefter fräsning. Med en mer sofistikerad programvara skulle en noggrannare simulering kunnagenomföras på ett sådant sätt att antalet interferenser mellan kugghjulsämne och snäckfrässkulle öka. Flera och tätare interferenser skulle medföra att ytstrukturer och avvikelser somuppkommer till följd av skadade skärtänder på snäckfräsen skulle kunna studeras ochavhjälpas. I ett kommunikativt syfte innebär en animering en förståelse för vad som händerinne i den annars insynsskyddade maskinen. Detta kan resultera i en ökad noggrannhet dåmaskinen måste riktas upp eller kalibreras om.
One of the biggest costs in the vehicle industry today is the transmission, which mainlycontains of gears. As the number of gears increase so do the quality demands regarding thestrength and reduction of the noise emissions due to vibrations. At the same time there is ademand of lowering the costs. To lower the cost at the manufacturing of spurs a nationwideprogram has been initiated, named KUGG. The primary aim with KUGG is to reduce cost byresearch. Today the manufacturing of a spur needs several machining steps from course tofine machining. These steps are very expensive in regards of the machine park and necessarypersonnel.With the above in mind a method has been investigated to virtually machine a spur. The partof the process that has been virtually machined is the cutting of the gear profile. The cuttinghas been done by a worm hob. The design and shape of the worm hob decides the gearprofile, which demands a lot from the worm hob.The result of the virtual cutting shows that it is possible to generate a gear profile withmodern software using animated interference volumes. The interference volumes are thenmanually removed with a time consuming multi operation command in Solid Edge. It hasbeen concluded that it is not possible to study the surface topography after the interferencevolumes have been removed.Using a more powerful computer and more sophisticated software the number of interferencevolumes could increase. More and narrower interferences would result in a smoother surfaceand a more correct surface profile and thereby the damages caused by broken gear teeth onthe worm hob could be studied.For the machine operator an animation will give a better understanding of the cutting andthereby result in a higher accuracy.

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Дядечко, Алла Миколаївна, Алла Николаевна Дядечко, Alla Mykolaivna Diadechko i V. Zakharchenko. "Computer-aided design (CAD)". Thesis, Видавництво СумДУ, 2010. http://essuir.sumdu.edu.ua/handle/123456789/18296.

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Wahlkrantz, Daniel. "CAD-Konfigurator för ångventiler". Thesis, Karlstads universitet, Avdelningen för maskin- och materialteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-79089.

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Vid BVT Sweden i Karlstad och Säffle säljs, utvecklas och tillverkas högtrycksventiler av olika varianter för kraftverk och till processindustrin. Ventilerna är av större format och tillverkas mot kundbeställning i mindre batcher. För att på ett snabbare sätt kunna skapa en CAD-modell och sammanställningsritning med ventilens viktigaste mått, samt en uppskattning av dess vikt, skapades i detta examensarbete en CAD-konfigurator. Målet för examensarbetet var att skapa en CAD-konfigurator för generering av en 3D-modell samt ritning av ventilen BVT-TB med uppskattning av vikt, detta i syfte att fungera som ett säljverktyg. Denna rapport innehåller bakgrund om ventilen BVT-TB och dess användningsområden, en teoridel om produktkonfiguratorer och dess användningsområden, verktyg för att skapa en sådan samt vanligtvis uppstådda problem vid skapandet av denna. Den innehåller även nödvändig bakgrundsinformation om de program som använts under projektet. Under arbetet skapades en CAD-konfigurator för de viktigaste och största komponenterna i ventilen av modell BVT-TB, en högtrycksventil för förbikoppling av ångturbiner. Denna gjordes i Solid Edge 2020 och styrdes av ett Exceldokument där modellens variabler hämtades in och skickades tillbaka och på så vis styrdes.

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Dahl, Erik. "Insticksmodul till CAD-program". Thesis, KTH, Maskinkonstruktion (Inst.), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-172039.

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Användande av CAD-program har blivit standard inom produktframtagning och erbjuder många verktyg för konstruktörer. Under de senaste åren har intresset för miljö-tänk växt inom många industrier och i framtiden förmodas företag satsa mer och mer på miljömässigt hållbar produktutveckling för att klara av hårdare miljökrav. Projektet syftar till att på konceptuell nivå utveckla verktyg tänkta att integreras i ett befintligt CAD-program. Verktygen implementeras i form av ett insticksprogram och skall under konstruktionsfasen hjälpa användaren i dess arbete genom att bland annat presentera information om CAD-modellen och förbättra arbetsflödet. Projektet berör ej programmering eller framtagning av kod för implementering i CAD-program. Metoden som används för utveckling av verktyget är ”Osborn-Parnes creative problem solving process” och inkluderar litteraturstudier, intervjuer och enkäter.Konceptutvecklingen innefattar design av ett flertal verktyg och funktioner tänkta att användas i CAD-miljö, både vad gäller innehåll och grafik. Befintliga CAD- och insticksprogram undersöks för att skapa ett så realistisk resultat som möjligt. Skulle vidareutveckling av insticksprogrammet ske behövs grundligare användarstudier göras med erfarna CAD-konstruktörer och mer information inhämtas om krav på programmeringsdelen.
CAD computer programs have become standard tools within product development and offer designers many tools. For some time now, the interest for environmental thinking has grown within many industries and it is expected that companies in the future will put more and more effort into environmentally friendly product development to meet higher standards. This project aims to, on a conceptual level, create tools to be integrated in an existing CAD computer program. The tools will be implemented as a plug-in and try to aid the user during the design phase by presenting useful information about the CAD-model and enhance the workflow. The project does not include programming or implementing code in existing programs. The method used in developing the tools is the “Osborn-Parnes creative problem solving process” and includes literature studies, interviews and questionnaire studies. The concept development includes creating content and designing layout, resulting in a number of tools to be used in CAD program workspace. Existing CAD programs and plugins are looked at to create a finished result being as realistic as possible.Should further development of the plugin take place, a more thorough user study is needed to be carried out, including professional CAD designers. More information is also needed to investigate the possibilities of programming the plug-in.

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