Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
Triaxial accelerometer and machining process: A vibration analysis using Doehlert's Experimental Planning
Submission Author:
Thalyta Lopes Santos , MA
Co-Authors:
Rubens Gonçalves, Thalyta Lopes Santos, Matheus Vieira, Jhonatas Jesus
Presenter: Thalyta Lopes Santos
doi://10.26678/ABCM.COBEM2019.COB2019-2071
Abstract
The external cylindrical turning process is very widespread in the industrial environment but some vibrations inherent in the process can be harmful to the part. The vibration may cause damages such as the early wear of the cutting tool, problems with the roughness of final part, losses in dimensional reliability and reduce the lifespan of the equipment. Considering the above, it’s clear to see that is necessary monitoring and studying this vibrations in order to allow optimal use of the equipment. For this purpose, it is proposed the analysis of the three-dimensional behavior of the vibrations acting using the Doehlert’s Experimental Planning. The use of the experimental planning makes possible the reduction of the necessary tests, maintaining the reliability of the obtained data, as well as the simultaneous study of several variables, separating their effects. In this case, the objective is to study the effects of rotation speed and cutting depth on the machining process, based on the accelerations present in each axis. The Doehlert’s matrix was defined with five levels for cutting depth and three levels for rotation speed, according to coded variables. Variance analysis and F-test were used to define the best model.
Keywords
Vibration, triaxial accelerometer, Doehlert, experimental planning
