Título del documento: A stochastic model for volumetric errors
Revue: Journal of the Brazilian Society of Mechanical Sciences and Engineering
Base de datos: PERIÓDICA
Número de sistema: 000312373
ISSN: 1678-5878
Autores: 1

1
Instituciones: 1Aeroalcool Tecnologia Ltda, Franca, Sao Paulo. Brasil
Año:
Periodo: Abr-Jun
Volumen: 28
Número: 2
Paginación: 161-168
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental
Resumen en inglés The present work aims to determine mathematical equations that describe the behavior of the components of the volumetric error in Three Coordinates Measuring Machines (3CMM). A general methodology using techniques of multiple regressions is presented. Such methodology, applied to a moving bridge type 3CMM, has made it possible to obtain, in a simple way, three regression equations from data collected through a direct calibration procedure, more specifically, the space grid method. The proposed model was statistically and experimentally evaluated. The statistic evaluation covers the calculation of the correlation coefficient of the samples, a residue analysis and the hypothesis verification. The experimental evaluation was made through the comparison of results expected by the model with the results obtained from the measurements of a ball bar. From these results, it is possible to verify that the model is adequate and that it is good in predicting volumetric errors in the machine
Disciplinas: Ingeniería,
Matemáticas
Palabras clave: Ingeniería de control,
Ingeniería mecánica,
Matemáticas aplicadas,
Modelos estocásticos,
Errores volumétricos,
Maquinaria,
Producción,
Control
Keyword: Engineering,
Mathematics,
Control engineering,
Mechanical engineering,
Applied mathematics,
Volumetric errors,
Machinery,
Production,
Control,
Stochastic models
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