A new way of measuring the belt friction coefficient using a digital servomotor

Kušnerová, Milena; Řepka, Michal; Harničárová, Marta; Valíček, Ján; Danel, Roman; Kmec, Ján; Palková, Zuzana

doi:10.1016/j.measurement.2019.107100

Cited by 4 publications

(3 citation statements)

References 18 publications

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“… bending coefficient In analogy with the classical definition of shear friction along the horizontal plane [14], the ratio of both forces (at the elementary and integral level) can be replaced by the friction coefficient  along the cylindrical surface, in accordance with the Euler-Eytelwein derivation based on infinitesimal calculus (2) [18].…”

Section: Theoretical Partmentioning

confidence: 99%

“…A necessary condition for accurate measurements of tensile forces is the maintenance of a constant speed of movement, i.e. movement with an artificial subsidy of dissipative losses [14]. The friction mechanism studied at the microscopic level is a complex process in which the cohesive and adhesive effects are applied with different intensity, but always work in synergy.…”

Section: Introductionmentioning

confidence: 99%

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A Study of the Connection Between Bending Stress and Belt Friction Using a Servomotor Controlled by a Computer

et al. 2021

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The aim of the publication is to design an analytical relationship for determining the bending coefficient measurable by belt friction. Following the results of the presented measurements, the theoretical assumption is verified that in the material of the belt stress arises during the friction of the contact surfaces, due to external forces and bending of the belt. Selected experiments of drawing a polypropylene belt at a constant speed over an aluminium cylindrical surface are carried out using a servo drive on a measuring bench with computer-controlled instrumentation. The results of friction and bending coefficient measurements are interpreted in connection with the setting of various input parameters (especially friction surfaces and belt thicknesses), at a constant shaft speed. The newly identified dimensionless bending coefficient of belt friction is a material coefficient with a comparative information value concerning the flexibility of the belt, suitably supplementing the friction Euler-Eytelwein coefficient. The presented publication can be suitably applied especially to the engineering educational process.

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Section: Theoretical Partmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Study of the Connection Between Bending Stress and Belt Friction Using a Servomotor Controlled by a Computer

et al. 2021

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“…En Thai y Paulishen (2011) se le realiza una evaluación a este kit para su uso en cursos de ingeniería en Robótica. Los servomotores usados por Robotis son los denominados Dynamixel y son en la actualidad ampliamente utilizados en robots avanzados para la investigación (Arena et al, 2022;Zyhowski et al, 2022; Mejoramiento de un servomotor inteligente de bajo costo Improvement of a low-cost intelligent servomotor Shirai et al, 2022;Kusnerova et al, 2020, Iqbal et al, 2020.…”

Section: Introductionunclassified

Mejoramiento de un servomotor inteligente de bajo costo

Sánchez-García,

Bugarin,

Aguilar-Bustos

2023

ICBI

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En este artículo se describe una mejora implementada al servomotor Dynamixel AX-12, un servomotor inteligente de bajo costo muy utilizado en el diseño y construcción de robots avanzados para entretenimiento e investigación. Se detalla la modificación de su software y hardware a fin de cambiar su protocolo de comunicación original por SPI y con esto lograr mayores velocidades de transmisión de datos entre servomotores del mismo tipo y sistemas de cómputo supervisores que operen en tiempo real. Adicionalmente, se le programa un controlador PD con prealimentación para regular tanto la velocidad como la posición angular de su eje de carga, con un periodo de muestreo de 1 [ms] (10 veces mayor respecto a lo alcanzado con el servomotor original). Finalmente se describen las conclusiones obtenidas respecto al comportamiento satisfactorio tanto de lo teórico como de lo experimental.

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Kinetic friction coefficient modeling and uncertainty measurement evaluation for a journal bearing test apparatus

Vale

Silva

2020

Measurement

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A new way of measuring the belt friction coefficient using a digital servomotor

Cited by 4 publications

References 18 publications

A Study of the Connection Between Bending Stress and Belt Friction Using a Servomotor Controlled by a Computer

A Study of the Connection Between Bending Stress and Belt Friction Using a Servomotor Controlled by a Computer

Mejoramiento de un servomotor inteligente de bajo costo

Kinetic friction coefficient modeling and uncertainty measurement evaluation for a journal bearing test apparatus

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