Computer Numerical Control
Mostrando 1-12 de 31 artigos, teses e dissertações.
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1. Experimental and numerical evaluation of viscoelastic sandwich beams
Abstract Viscoelastic materials can dissipate a large amount of energy when subjected to cyclic shear deformations, but they have low bearing capacity. Therefore they are often employed as a damping layer in sandwich structures. These sandwich structures present a high damping ratio and simple application. In order to design sandwich structures, many aspects
REM, Int. Eng. J.. Publicado em: 2017-09
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2. Concept of a Maneuvering Load Control System and Effect on the Fatigue Life Extension
Abstract This paper presents a methodology for the conceptual design of a Maneuver Load Control system taking into account the airframe flexibility. The system, when switched on, is able to minimize the bending moment augmentation at a wing station near the wing root during an unsteady longitudinal maneuver. The reduction of the incremental wing bending mome
Lat. Am. j. solids struct.. Publicado em: 2016-12
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3. The use of single point incremental forming for customized implants of unicondylar knee arthroplasty: a review
Abstract Introduction The implantable devices are having enormous market. These products are basically made by traditional manufacturing process, but for the custom-made implants Incremental Sheet Forming is a paramount alternative. Single Point Incremental Forming (SPIF) is a manufacturing process to form intricate, asymmetrical components. It forms the co
Res. Biomed. Eng.. Publicado em: 30/10/2015
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4. Controle ativo acústico estrutural: projeto, simulação e análise de qualidade sonora / Active structural acoustic control: design, simulation and analysis of sound quality
This master thesis deals with the study of active noise and sound quality control systems in automotive applications, and the innovative assessment of their performance based on relevant psychoacoustic metrics in this area such as Loudness, Roughness and Tonality. A methodology for designing and implementing active control systems based on psychoacoustic met
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/08/2012
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5. Objetos tecnopoéticos : transmutações de imagens do repulsivo
The artistic proposal ¿Technopoetic Objects: Transmutations of Images of the Repulsive¿ discusses poetic experimentation using digital painting, video art, computer and control interfaces. In this thesis, Technopoetics use principles such as numerical representation, modularity, automation, variability and transcoding. Technology is explored as a tool for
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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6. Controle de atitude de satélites artificiais utilizando um processador digital de sinais / Attitude control of satellites using a digital signal processor
This work deals with the development and implementation of an attitude control system for an artificial satellite using a Digital Signal Processor (DSP). The dissertation presents a complete study of the attitude movement modeling and control for the continuous time systems case, considering the Linear Quadratic Regulator (LQR) and Linear Quadratic Gaussian
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/09/2010
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7. "Automação do processo de detalhamento de torres metálicas via tecnologia CAD"
This work presents the design and implementation of a computer system denominated TowerCAD for automation of the detailing process of steel towers structures by integrating CAD (Computer Aided Design), CAE (Computer Aided Engineering) and CAM (Computer Aided Manufacturing) technologies. The TowerCAD system integrates a CAD application and a database. The sys
Publicado em: 2010
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8. THE LIMITS OF INTELLECTUAL SUBSUMPTION LABOUR IN SOFTWARE PRODUCTION PROCESS / OS LIMITES DA SUBSUNÇÃO DO TRABALHO INTELECTUAL NO PROCESSO PRODUTIVO DE SOFTWARE
The principle of modern production is to combine modern production techniques, new knowledge, combined with increasingly sophisticated computerized development processes to increase production and processing continuous model itself. The Third Industrial Revolution, characterized by extreme specialization of intellectual labor and tendency to erase the border
Publicado em: 2010
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9. As ligações semirrígidas na análise avançada com zona plástica de portais planos de aço
In this work, the development of the Plastic-Zones Advanced Analysis of plane steel portals is studied, now including the connections effect. Firstly, this analysis is defined as inelastic second-order which capture the plasticity spread by slice technique and includes the Main Aspects as geometric (out-of-straight and out-of-plumb) and physical imperfection
Publicado em: 2010
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10. IMPLEMENTAÇÃO DE TÉCNICAS DE CONTROLE DE MOTOR DE PASSO EM APLICAÇÕES CNC / IMPLEMENTATION OF CONTROL TECHNIQUES OF STEPPING MOTOR INTO CNC APPLICATIONS
O objetivo deste trabalho é desenvolver uma metodologia de controle de equipamentos acionados por motores de passo, via porta paralela de microcomputadores, com até três eixos programáveis, para utilização em processos de automação. Para implementar o sistema proposto, utilizou-se um ambiente de desenvolvimento de programas computacionais, através d
Publicado em: 2009
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11. SEGMENTING TECHNIQUES OF IMAGES IN THE GENERATION OF PROGRAMS FOR MACHINERY OF COMMAND NUMERICAL / TÉCNICAS DE SEGMENTAÇÃO DE IMAGENS NA GERAÇÃO DE PROGRAMAS PARA MÁQUINAS DE COMANDO NUMÉRICO
This work describes a tool for extraction of features in 2D images applied to industrial automation. The method uses techniques implemented targeting of images into pieces model as detection of edges in the extraction of spatial coordinates of the image and import applications in CAD (Computer-Aided Design) for the generation of programmers for Computer Nume
Publicado em: 2008
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12. Desenvolvimento de um WebLab para estudo e caracterização de sistemas WDM
The advent of the Internet and the development of Information and Communication Technologies (ICTs) generated new spaces for communication and collaboration between groups of people in geographically distinct regions. The association of Web technology with instrument automation and control by computer has made possible the development of the so called Remote
Publicado em: 2008