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Do modelo geom?trico ao modelo f?sico: o tridimensional na educa??o do arquiteto e urbanistaCosta, Fernando Jos? de Medeiros 02 March 2013 (has links)
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Previous issue date: 2013-03-02 / In the teaching practice of architecture and urbanism in Brazil, educational legislation
views modeling laboratories and workshops as an indispensable component of the
infrastructure required for the good functioning of any architectural course of study.
Although the development of information technology at the international level has
created new possibilities for digital production of architectural models, research in
this field being underway since the early 1990s, it is only from 2007 onwards that
such technologies started to be incorporated into the teaching activity of architecture
and urbanism in Brazil, through the pioneering experience at LAPAC/FEC/UNICAMP.
It is therefore a recent experiment whose challenges can be highlighted through the
following examples: (i) The implementation of digital prototyping laboratories in
undergraduate courses of architecture and urbanism is still rare in Brazil; (ii) As a
new developing field with few references and application to undergraduate programs,
it is hard to define methodological procedures suitable for the pedagogical curricula
already implemented or which have already been consolidated over the years; (iii)
The new digital ways for producing tridimensional models are marked with
specificities which make it difficult to fit them within the existing structures of model
laboratories and workshops. Considering the above, the present thesis discusses the
tridimensional model as a tool which may contribute to the development of students
skills in perceiving, understanding and representing tridimensional space. Analysis is
made of the relation between different forms of models and the teaching of
architectural project, with emphasis on the design process. Starting from the
conceptualization of the word model as it is used in architecture and urbanism, an
attempt is made to identify types of tridimensional models used in the process of
project conception, both through the traditional, manual way of model construction as
well as through the digital ones. There is also an explanation on how new
technologies for digital production of models through prototyping are being
introduced in undergraduate academic programs of architecture and urbanism in
Brazil, as well as a review of recent academic publications in this area. Based on the
paradigm of reflective practice in teaching as designed by Sch?n (2000), the
experiment applied in the research was undertaken in the integrated workshop
courses of architectural project in the undergraduate program of architecture and
urbanism at Universidade Federal do Rio Grande do Norte. Along the experiment,
physical modeling, geometric modeling and digital prototyping are used in distinct
moments of the design process with the purpose of observing the suitability of each
model to the project s phases. The procedures used in the experiments are very
close to the Action Research methodology in which the main purpose is the
production of theoretical knowledge by improving the practice. The process was
repeated during three consecutive semesters and reflection on the results which
were achieved in each cycle helped enhancing the next one. As a result, a
methodological procedure is proposed which consists of the definition of the
Tridimensional Model as the integrating element for the contents studied in a specific
academic period or semester. The teaching of Architectural Project as it is developed
along the fifth academic period of the Architecture and Urbanism undergraduate
program of UFRN is taken as a reference / Na pr?tica do ensino de Arquitetura e Urbanismo no Brasil, verifica-se a exist?ncia
de laborat?rios e oficinas de maquetes, reconhecidas pela legisla??o educacional
como parte da infraestrutura necess?ria para o funcionamento de um curso. Embora
a evolu??o da tecnologia da informa??o no ?mbito internacional disponibilize novas
possibilidades para a produ??o digital de maquetes e modelos de Arquitetura com
pesquisas produzidas desde o in?cio da d?cada de 1990, no Brasil essas tecnologias
s? come?aram a ser apropriadas pelo ensino de Arquitetura e Urbanismo a partir de
2007 com a experi?ncia pioneira do LAPAC/FEC/UNICAMP. Trata-se, portanto de
uma experi?ncia recente e que evidencia a desafios. Por exemplo: (i) s?o raros os
casos de implanta??o de laborat?rios de prototipagem digital em cursos de
Arquitetura e Urbanismo no Pa?s; (ii) por ser um campo em desenvolvimento com
poucas refer?ncias de aplica??es na gradua??o, h? dificuldades na defini??o de
procedimentos metodol?gicos que sejam adequados aos projetos pedag?gicos j?
implantados e consolidados; (iii) as novas formas digitais de produ??o de modelos
tridimensionais cont?m especificidades que dificultam a compatibiliza??o com as
estruturas de laborat?rios e oficinas de maquetes j? existentes. Considerando o
exposto, na presente tese se discute o modelo tridimensional como instrumento
auxiliar no desenvolvimento da capacidade do estudante de perceber, compreender
e representar o espa?o tridimensional. Analisa-se a rela??o entre diferentes formas
de modelos e o ensino de projeto de Arquitetura e Urbanismo com interesse no
processo projetual. Partindo da conceitua??o do modelo em Arquitetura e
Urbanismo, busca-se identificar os tipos de modelos tridimensionais utilizados no
processo de elabora??o do projeto, tanto nas formas tradicionais de constru??o
manual de maquetes e modelos quanto nos meios digitais. Procura-se conhecer
como as novas tecnologias para a produ??o digital de modelos por meio da
prototipagem digital est?o sendo introduzidas nos cursos de gradua??o de
Arquitetura e Urbanismo no Brasil, assim como a produ??o acad?mica recente na
?rea. Considerando o paradigma do ensino pr?tico reflexivo concebido por Sch?n
(2000), o experimento realizado na pesquisa tem como ambiente de estudo o ateli?
integrado de projeto do Curso de Arquitetura e Urbanismo da Universidade Federal
do Rio Grande do Norte. No experimento a Modelagem f?sica, a Modelagem
Geom?trica e a Prototipagem Digital s?o inseridas em momentos do processo do
projeto com o objetivo de se observar a adequa??o do modelo ?s fases do projeto. A
metodologia empregada nos experimentos muito se aproxima da Pesquisa A??o na
qual o alvo principal ? a cria??o de conhecimento te?rico com o aprimoramento da
pr?tica. O processo se repetiu por tr?s semestres consecutivos e a reflex?o sobre os
resultados alcan?ados em cada ciclo forneceram subs?dios para aprimoramento no
seguinte. Como resultado prop?e-se um procedimento metodol?gico no qual o
Modelo Tridimensional constitui elemento integrador de conte?dos desenvolvidos em
um per?odo curricular, tendo como refer?ncia o ensino de Projeto Arquitet?nico e
Urban?stico no quinto per?odo do Curso de Arquitetura e Urbanismo da UFRN
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CAD e engenharia reversa como ferramentas de aux?lio na fabrica??o de cartuchos para pr?teses ortop?dicasPereira, Edson Jorge Alc?ntara 10 August 2007 (has links)
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Previous issue date: 2007-08-10 / The manufacturing of above and below-knee prosthesis starts by taking surfac measurements of the patient s residual limb. This demands the making of a cartridg with appropriate fitting and customized to the profile of each patient. The traditiona
process in public hospitals in Brazil begins with the completion of a record file (according to law n?388, of July 28, 1999 by the ministry of the health) for obtaining o the prosthesis, where it is identified the amputation level, equipment type, fitting type
material, measures etc. Nowadays, that work is covered by the Brazilian Nationa Health Service (SUS) and is accomplished in a manual way being used commo measuring tapes characterizing a quite rudimentary, handmade work and without an accuracy.In this dissertation it is presented the development of a computer integrate tool that it include CAD theory, for visualization of both above and below-knee prosthesis in 3D (i.e. OrtoCAD), as well as, the design and the construction a low cos electro-mechanic 3D scanner (EMS). This apparatus is capable to automatically obtain geometric information of the stump or of the healthy leg while ensuring smalle uncertainty degree for all measurements. The methodology is based on reverse engineering concepts so that the EMS output is fed into the above mentioned academi CAD software in charge of the 3D computer graphics reconstruction of the residualimb s negative plaster cast or even the healthy leg s mirror image. The obtained results demonstrate that the proposed model is valid, because it allows the structura analysis to be performed based on the requested loads, boundary conditions, material chosen and wall thickness. Furthermore it allows the manufacturing of a prosthesis cartridge meeting high accuracy engineering patterns with consequent improvement in the quality of the overall production process / A fabrica??o de pr?teses para amputados de membros inferiores (transfemural e transtibial) exige a confec??o de um cartucho com encaixe adequado e personalizado ao perfil de cada paciente. O processo tradicional de atendimento a pacientes em
hospitais p?blicos no Brasil inicia-se com o preenchimento de uma ficha conforme portaria n?388, de 28 de Julho de 1999 do minist?rio da sa?de para obten??o da pr?tese, onde ? identificado o n?vel de amputa??o, tipo de equipamento, tipo de encaixe, material, medidas etc. Atualmente, esses cartuchos s?o fabricados de forma manual atrav?s de instrumentos de baixa precis?o, caracterizando um trabalho bastante rudimentar, artesanal e sem nenhuma acuracidade. Nesta disserta??o prop?e-se o desenvolvimento de uma ferramenta integrada que envolva o CAD, para visualiza??o das pr?teses dos tipos transfemural/transtibial em 3D (OrtoCAD), bem como, o projeto e a constru??o um leitor eletromec?nico (esp?cie de scanner tridimensional), capaz de obter automaticamente e qualitativamente, com menor grau de incerteza as informa??es geom?tricas do coto ou da perna sadia. A metodologia inclui a aplica??o de conceitos de engenharia reversa para gerar computacionalmente a representa??o do coto e/ou a imagem reversa do membro sadio. Os resultados obtidos demonstram que o modelo posposto ? v?lido, pois permite a an?lise estrutural em fun??o do carregamento solicitado e a confec??o de um cartucho de pr?tese atendendo elevados padr?es de acuracidade da engenharia com conseq?ente melhoria na qualidade do processo de fabrica??o
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