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A Pot-Like Vibrational Microfluidic Rotational Motor

Constructing a micro-sized microfluidic motor always involves the problem of how to transfer the mechanical energy out of the motor. The paper presents several experiments with pot-like microfluidic rotational motor structures driven by two perpendicular sine and cosine vibrations with amplitudes ar...

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Detalles Bibliográficos
Autores principales: Uran, Suzana, Malok, Matjaž, Bratina, Božidar, Šafarič, Riko
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7918734/
https://www.ncbi.nlm.nih.gov/pubmed/33670259
http://dx.doi.org/10.3390/mi12020177
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author Uran, Suzana
Malok, Matjaž
Bratina, Božidar
Šafarič, Riko
author_facet Uran, Suzana
Malok, Matjaž
Bratina, Božidar
Šafarič, Riko
author_sort Uran, Suzana
collection PubMed
description Constructing a micro-sized microfluidic motor always involves the problem of how to transfer the mechanical energy out of the motor. The paper presents several experiments with pot-like microfluidic rotational motor structures driven by two perpendicular sine and cosine vibrations with amplitudes around 10 μm in the frequency region from 200 Hz to 500 Hz. The extensive theoretical research based on the mathematical model of the liquid streaming in a pot-like structure was the base for the successful real-life laboratory application of a microfluidic rotational motor. The final microfluidic motor structure allowed transferring the rotational mechanical energy out of the motor with a central axis. The main practical challenge of the research was to find the proper balance between the torque, due to friction in the bearings and the motor’s maximal torque. The presented motor, with sizes 1 mm by 0.6 mm, reached the maximal rotational speed in both directions between −15 rad/s to +14 rad/s, with the estimated maximal torque of 0.1 pNm. The measured frequency characteristics of vibration amplitudes and phase angle between the directions of both vibrational amplitudes and rotational speed of the motor rotor against frequency of vibrations, allowed us to understand how to build the pot-like microfluidic rotational motor.
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spelling pubmed-79187342021-03-02 A Pot-Like Vibrational Microfluidic Rotational Motor Uran, Suzana Malok, Matjaž Bratina, Božidar Šafarič, Riko Micromachines (Basel) Article Constructing a micro-sized microfluidic motor always involves the problem of how to transfer the mechanical energy out of the motor. The paper presents several experiments with pot-like microfluidic rotational motor structures driven by two perpendicular sine and cosine vibrations with amplitudes around 10 μm in the frequency region from 200 Hz to 500 Hz. The extensive theoretical research based on the mathematical model of the liquid streaming in a pot-like structure was the base for the successful real-life laboratory application of a microfluidic rotational motor. The final microfluidic motor structure allowed transferring the rotational mechanical energy out of the motor with a central axis. The main practical challenge of the research was to find the proper balance between the torque, due to friction in the bearings and the motor’s maximal torque. The presented motor, with sizes 1 mm by 0.6 mm, reached the maximal rotational speed in both directions between −15 rad/s to +14 rad/s, with the estimated maximal torque of 0.1 pNm. The measured frequency characteristics of vibration amplitudes and phase angle between the directions of both vibrational amplitudes and rotational speed of the motor rotor against frequency of vibrations, allowed us to understand how to build the pot-like microfluidic rotational motor. MDPI 2021-02-11 /pmc/articles/PMC7918734/ /pubmed/33670259 http://dx.doi.org/10.3390/mi12020177 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Uran, Suzana
Malok, Matjaž
Bratina, Božidar
Šafarič, Riko
A Pot-Like Vibrational Microfluidic Rotational Motor
title A Pot-Like Vibrational Microfluidic Rotational Motor
title_full A Pot-Like Vibrational Microfluidic Rotational Motor
title_fullStr A Pot-Like Vibrational Microfluidic Rotational Motor
title_full_unstemmed A Pot-Like Vibrational Microfluidic Rotational Motor
title_short A Pot-Like Vibrational Microfluidic Rotational Motor
title_sort pot-like vibrational microfluidic rotational motor
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7918734/
https://www.ncbi.nlm.nih.gov/pubmed/33670259
http://dx.doi.org/10.3390/mi12020177
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