Photogrammetric evaluation of geometrical tolerance standards: a Darpa Suboff model case study
A DARPA Suboff scale model was used for the development of an analysis methodology for geometric deviations of the hull, aiming the quality control of model manufacturing process. The surface three-dimensional coordinates were obtained through a photogrammetric survey and analyzed based on statistical tools.
The results were classified according to the ITTC and DIN ISO geometric tolerance standards, allowing the investigation of the compliance of the model to such criteria and the study of local geometric deviations.
ERNARDO LUIS RODRIGUES DE ANDRADE; BRUNO LOUREIRO DE ALMEIDA; FILLIPE ROCHA ESTEVES; PEDRO HENRIQUE BULLA et al. Scale model geometric verification using photogrammetry. In: 27o Congresso Internacional De Transporte Aquaviário, Construção Naval E Offshore, 2018, Rio de Janeiro. Anais eletrônicos... Campinas, GALOÁ, 2018. Available at: Access 29 jan, 2019.
DIN ISO; DIN ISO 2768-1-m General tolerances - Part 1: Tolerances for linear and angular dimensions without individual tolerance indications. 1989.
GOM; Photogrammetry Tritop 6.2 Manual Basic. Germany, 2009.
GROVES, N. C.; HUANG, T. T.; CHANG, M. S.; Geometric Characteristics of DARPA Suboff Models. Bethesda: David Taylor Research Center, 1989.
ITTC; Ship Models Recommended Procedures. 2011
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