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Global Sensitivity Analysis of Chosen Harmonic Drive Parameters Affecting Its Lost Motion

The aim of the presented study was to perform a global sensitivity analysis of various design parameters affecting the lost motion of the harmonic drive. A detailed virtual model of a harmonic drive was developed, including the wave generator, the flexible ball bearing, the flexible spline and the c...

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Autores principales: Hrcek, Slavomir, Brumercik, Frantisek, Smetanka, Lukas, Lukac, Michal, Patin, Branislav, Glowacz, Adam
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8434536/
https://www.ncbi.nlm.nih.gov/pubmed/34501147
http://dx.doi.org/10.3390/ma14175057
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author Hrcek, Slavomir
Brumercik, Frantisek
Smetanka, Lukas
Lukac, Michal
Patin, Branislav
Glowacz, Adam
author_facet Hrcek, Slavomir
Brumercik, Frantisek
Smetanka, Lukas
Lukac, Michal
Patin, Branislav
Glowacz, Adam
author_sort Hrcek, Slavomir
collection PubMed
description The aim of the presented study was to perform a global sensitivity analysis of various design parameters affecting the lost motion of the harmonic drive. A detailed virtual model of a harmonic drive was developed, including the wave generator, the flexible ball bearing, the flexible spline and the circular spline. Finite element analyses were performed to observe which parameter from the harmonic drive geometry parameter group affects the lost motion value most. The analyses were carried out using 4% of the rated harmonic drive output torque by the locked wave generator and fixed circular spline according the requirements for the high accuracy harmonic drive units. The described approach was applied to two harmonic drive units with the same ratio, but various dimensions and rated power were used to generalize and interpret the global sensitivity analysis results properly. The most important variable was for both harmonic drives the offset from the nominal tooth shape.
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spelling pubmed-84345362021-09-12 Global Sensitivity Analysis of Chosen Harmonic Drive Parameters Affecting Its Lost Motion Hrcek, Slavomir Brumercik, Frantisek Smetanka, Lukas Lukac, Michal Patin, Branislav Glowacz, Adam Materials (Basel) Article The aim of the presented study was to perform a global sensitivity analysis of various design parameters affecting the lost motion of the harmonic drive. A detailed virtual model of a harmonic drive was developed, including the wave generator, the flexible ball bearing, the flexible spline and the circular spline. Finite element analyses were performed to observe which parameter from the harmonic drive geometry parameter group affects the lost motion value most. The analyses were carried out using 4% of the rated harmonic drive output torque by the locked wave generator and fixed circular spline according the requirements for the high accuracy harmonic drive units. The described approach was applied to two harmonic drive units with the same ratio, but various dimensions and rated power were used to generalize and interpret the global sensitivity analysis results properly. The most important variable was for both harmonic drives the offset from the nominal tooth shape. MDPI 2021-09-03 /pmc/articles/PMC8434536/ /pubmed/34501147 http://dx.doi.org/10.3390/ma14175057 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Hrcek, Slavomir
Brumercik, Frantisek
Smetanka, Lukas
Lukac, Michal
Patin, Branislav
Glowacz, Adam
Global Sensitivity Analysis of Chosen Harmonic Drive Parameters Affecting Its Lost Motion
title Global Sensitivity Analysis of Chosen Harmonic Drive Parameters Affecting Its Lost Motion
title_full Global Sensitivity Analysis of Chosen Harmonic Drive Parameters Affecting Its Lost Motion
title_fullStr Global Sensitivity Analysis of Chosen Harmonic Drive Parameters Affecting Its Lost Motion
title_full_unstemmed Global Sensitivity Analysis of Chosen Harmonic Drive Parameters Affecting Its Lost Motion
title_short Global Sensitivity Analysis of Chosen Harmonic Drive Parameters Affecting Its Lost Motion
title_sort global sensitivity analysis of chosen harmonic drive parameters affecting its lost motion
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8434536/
https://www.ncbi.nlm.nih.gov/pubmed/34501147
http://dx.doi.org/10.3390/ma14175057
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