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Commenced in January 2007 Frequency: Monthly Edition: International Publications Count: 29978

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Topographical Image Transference Compatibility Generated Through Moiré Technique Applying Parametrical Softwares of Computer Assisted Design
Computer aided design accounts with the support of parametric software in the design of machine components as well as of any other pieces of interest. The complexities of the element under study sometimes offer certain difficulties to computer design, or ever might generate mistakes in the final body conception. Reverse engineering techniques are based on the transformation of already conceived body images into a matrix of points which can be visualized by the design software. The literature exhibits several techniques to obtain machine components dimensional fields, as contact instrument (MMC), calipers and optical methods as laser scanner, holograms as well as moiré methods. The objective of this research work was to analyze the moiré technique as instrument of reverse engineering, applied to bodies of nom complex geometry as simple solid figures, creating matrices of points. These matrices were forwarded to a parametric software named SolidWorks to generate the virtual object. Volume data obtained by mechanical means, i.e., by caliper, the volume obtained through the moiré method and the volume generated by the SolidWorks software were compared and found to be in close agreement. This research work suggests the application of phase shifting moiré methods as instrument of reverse engineering, serving also to support farm machinery element designs.
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[1] L. B. Alves, C. E. Sanches da Silva, C. H. P. Mello. Analysis of the use of the technology roadmapping as a means of selecting a reference product for reverse engineering. Gest. Prod. Journal. São Carlos, v. 18, pp. 55-72, 2.011.
[2] A. B. Ferneda, et al. Metrology, CAD and CAM integration: a contribution to reverse engineering study. São Carlos, 112 p. 2.011.
[3] Jardini, et. al. Integração de prototipagem rápida e engenharia reversa no desenvolvimento rápido de produto. Proceedings of 6° COBEF, Caxias do Sul, RS, Brazil, 11 p. 2.011.
[4] A.C.L. Lino. Técnica ├│ptica de moiré visando a aplica├º├úo no estudo de superf├¡cies irregulares. Campinas, 86 p. 2.002.
[5] A. C. L. Lino, J. Sanches, I. M. Dal Fabbro. Image processing techniques for lemons and tomatoes classification. Bragantia, Campinas, v.67, n.3, p.785-789, 2008.
[6] L. G. M. Mury. A methodology to adaptation and improvement of products concebed through reverse engineering. Porto Alegre, 100 p. 2.000.
[7] P. Smith neto, E. A. Fonseca, G. H. F. Freitas. Applicaton of Digital Shadow Moiré to Measurements of Human Body Perfilometry. In: 5th International Conference on Mechanics and Materials in Design, 2006, Porto. Mechanics and Materials in Design. Le├ºa do Balio, Portugal : INEGI-Instituto de Engenharia Mec├ónica e Gest├úo Industrial, 2006. v. 1. p. 63-71.
[8] P. Smith neto, P. A. A. Magalh├úes junior. Determination of human body profile using digital shadow moiré experimental technique. In: Iberian Latin America Congress on Computational Methos in Engineering -27 Cilamce, 2006, Belém-Par├í. Cilamce2006. Belém, Par├í : Universidade Federal do Par├í, 2006.
[9] Y. Wang. Shadow Moiré sensitivity increase by fringe shifting: phasestepping. , 03/09/2007.
[10] Z. Zhang, C. E. Towers, D. P. Towers. Phase and colour calculation in colour fringe projection. J. Opt. A: Pure Appl. Opt. v. 9, S81-S86, 2007.
[11] Z. Zhang, C. E. Towers, D. P. Towers. Time efficient color fringe projection system for 3D shape and color using optimum 3-frequency Selection. Optics Express. v. 14, v. 14, p. 6444-6455, Julho, 2006.
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