Publications in the Year: 2016

Conference Paper

Brendler, CF, Teixeira FG, Kindlein W, Pohlmann M, Rossi W.  2016.  FABRICAÇÃO DIGITAL PARA AUXILIAR NO ENSINO-APRENDIZADO DE ALUNOS COM DEFICIÊNCIA VISUAL: ESTUDO DE CASO DOS SISTEMAS NANOESTRUTURADOS, 06 de outubro. 12º Congresso Brasileiro de Pesquisa e Desenvolvimento em DesignBlucher Design Proceedings. 12:2389-., Belo Horizonte Abstract

Dados obtidos com o Censo Demográfico, em 2010, revelaram que quase 24% da população brasileira possuem algum tipo de deficiência, sendo a deficiência visual a de maior ocorrência. Dentre as políticas sociais que buscam atender às diferentes necessidades dos cidadãos, vale destacar o direito universal à educação. Recursos didáticos de diferentes naturezas vêm sendo empregados como ferramenta para auxiliar o ensino-aprendizagem de pessoas com deficiência visual. Vale, porém, questionar se esses recursos são realmente eficazes na compreensão de determinados conteúdos? Assim, o presente trabalho propõe a validação de modelos didáticos 3D para permitir a compreensão de sistemas nanoestruturados por deficientes visuais. A avaliação dos modelos foi realizada por usuário cego e, para tanto, foi utilizada uma adaptação do instrumento SETT (Alunos, Ambiente, Tarefas e Ferramentas). Os resultados indicam que os modelos produzidos por impressão 3D necessitam de revisão no que tange à legenda em Braille, mas, quanto aos demais aspectos, são viáveis para o uso como recurso didático para alunos com deficiência visual.

Teixeira, FG.  2016.  UM MODELO EVOLUTIVO PARA O PROCESSO DE GERAÇÃO E SELEÇÃO DE ALTERNATIVAS EM DESIGN, 06 de outubro. 12º Congresso Brasileiro de Pesquisa e Desenvolvimento em DesignBlucher Design Proceedings. 12:4374-., Belo HorizonteSão Paulo: Editora Blucher Abstract

The conceptual design step is the most complex of the design process and brings great challenges to designers. The number of possible concepts from a combination of functional principles can reach millions. This could derail an exhaustive search for the best possible concepts. So, this work proposes an evolutionary approach to that problem. The result is a framework based on a Genetic Algorithm (GA) that combines the specific properties of the design process with the core of GA, improving this process as a natural evolution.

Journal Article

Brendler, CF, Teixeira FG, da Silva FP, Müller MS.  2016.  Uso da digitalização 3D do corpo humano para desenvolvimento de produtos personalizados: Análise comparativa entre os scanners Artec EVA e o Kinect, 2016. Estudos em Design (Online). 24:41-60. AbstractFull Text

The aim of this paper is comparing both tridimensional scanners: white light Artec Eva; and Infra-red light Microsoft Kinect. This comparison enables evaluate possibilities of these equipments for developing user-centered product projects. It was carried out comparison's concerning both precision and dimensional deviation through virtual and physical models generated by CAD and CAM systems. It was verified the need of eliminating the human body movement by using physical models in the performed analysis. As a result, both scanners demonstrated measurement precision, with the advantage of Artec Eva over Microsoft Kinect. The selection of the most appropriated scanner concerning the projects needs evolves factors such as: the available cost for the project; and the required precision fidelity for the aimed product. Both digital scanners considered in this paper contribute to the development of customized products, showing the relationships between tools and needed product fidelity.

Teixeira, FG.  2016.  Perspectivas axonométricas e vistas principais no ensino de geometria descritiva, 2016. Revista Educação Gráfica. 20:289-302. AbstractFull Text

This work present axonometric and orthographic views to learning of Descriptive Geometry concepts. Axonometric views are a good way to show the utility of successive auxiliary views because they present the process and promote the 3D comprehension of objects. The paper proposes ways to build axonometric projections from any point of view by Descriptive Geometry tools. Besides, the use of the principal views enhances the understanding of successive auxiliary views, but in a more complex context where the student must choose directions to find the correct projections. Through these directions, you can choose the sequence of auxiliary planes that result in orthographic views. This work shows how two unusual concepts in the Descriptive Geometry education context can promote a better understanding of many of its contents.

Brendler, CF, Teixeira FG.  2016.  Método para obtenção de medidas antropométricas utilizando um digitalizador 3D de baixo custo, 2016. Design e Tecnologia. 6(11):53-67. AbstractFull Text

The aim is to develop a method for obtaining anthropometric parameters using a low cost three-dimensional digitizer. The research methodology is divided in five steps: literature review; collection and analysis of anthropometric data using the direct method and also the development of the indirect method for obtaining anthropometric measurements; comparison and data analysis; discussion of results and the completion of the research. The digitization process developed it is based on Microsoft Kinect, a low-cost device, and also on the software kscan3D. For the anthropometric collection from the three-dimensional model is used Autodesk 3D Studio Max. This research presents requirements and constraints for generate the three-dimensional model in order to obtain a mesh with satisfactory precision. It is presented a flowchart to guide the implementation of the developed method in the design process as well as a summary table containing guidelines for this application. The developed method achieved 97.96% of compatibility considering the results of the measured variables in relation to the direct method. These results were obtained with an exposure time of the individual of only 3 minutes and 28 seconds, which is less than the time required in the direct method – 1 hour and 12 minutes. This demonstrates one major contribution of the developed method.