INVESTIGADORES
PAULO Cecilia Ines
artículos
Título:
Design of an experimental device for the measurement of the coefficient of restitution
Autor/es:
EUGENIA BORSA; CECILIA I. PAULO; HORACIO A. PETIT; JULIANA PIÑA
Revista:
LATIN AMERICAN APPLIED RESEARCH
Editorial:
EdiUNS
Referencias:
Lugar: Bahía Blanca (B8000HZK); Año: 2019 vol. 49 p. 143 - 147
ISSN:
0327-0793
Resumen:
In this work an experimental device was designed and built to measure the coefficient of restitution of particles of different types and sizes. The aim of the study is to analyze the dependence of the coefficient of restitution with the impact velocity, the shape and mass of the particles. Three types of particles of different origin were used: lentils, ureagranules and polyethylene pellets. Two impact materials were evaluated: steel and polycarbonate. Image processing software was used to obtain the position of the particle at the instants before and after the impact, so the velocities and the coefficient of restitution of particles were obtained. For the 120 studied cases, the tangential values of the coefficient were always higher than the normal values. The highest values for the coefficient of restitution´s modulus were found for the lower mass particles. Regarding the behavior on impact materials, steel was less elastic than polycarbonate.
