The Use of a Robotic Arm for Displacement Measurements in a Cantilever beam

The Use of a Robotic Arm for Displacement Measurements in a Cantilever beam

George Lucas Dias, Ricardo Rodrigues Magalhães, Danton Diego Ferreira, Felipe Augusto Vitoriano
Copyright: © 2016 |Pages: 13
DOI: 10.4018/IJMMME.2016070104
OnDemand:
(Individual Articles)
Available
$37.50
Current Special Offers
No Current Special Offers
TOTAL SAVINGS: $37.50

Abstract

This paper is aimed to present a displacement measurements technique which was performed automatically in a cantilever beam using a robotic arm manipulator. This technique is based on the difference of measured coordinates of the robotic arm manipulator in order to provide displacement results. The robotic arm was supported by a micro-switch sensor which in contact with a sample, measured 21x3 points distributed along the sample. Measurements were performed before and after adding the loads on the free end of the cantilever beam, manufactured in ASTM A36 steel. Experiments were performed through loads of 1.96 N, 4.9 N, 9.8 N and 19.6 N using the robotic manipulator controller. Ten sets of measurement were performed for each load. The average and standard deviation for each set of points were also performed. Results were compared to Finite Element Method (FEM) simulations in order to verify the accuracy of the proposed compared to FEM results. Sum of squared errors presented values lower than 3% demonstrating the potentiality of the proposed technique for industries application.
Article Preview
Top

2. Theory/Calculation

A bar with constant cross section clamped at one end and an extremity in balance is called cantilever beam (Timoshenko and Goodier, 1970) which is illustrated by Figure 1.

Complete Article List

Search this Journal:
Reset
Volume 13: 1 Issue (2024)
Volume 12: 4 Issues (2022): 1 Released, 3 Forthcoming
Volume 11: 4 Issues (2021)
Volume 10: 4 Issues (2020)
Volume 9: 4 Issues (2019)
Volume 8: 4 Issues (2018)
Volume 7: 4 Issues (2017)
Volume 6: 4 Issues (2016)
Volume 5: 4 Issues (2015)
Volume 4: 4 Issues (2014)
Volume 3: 4 Issues (2013)
Volume 2: 4 Issues (2012)
Volume 1: 4 Issues (2011)
View Complete Journal Contents Listing