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Approximation Model Development and Dynamic Characteristic Analysis Based on Spindle Position of Machining Center
To evaluate the dynamic characteristics at all positions of the main spindle of a machine tool, an experimental point was selected using a full factorial design, and a vibration test was conducted. Based on the measurement position, the resonant frequency was distributed from approximately 236 to 24...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9609942/ https://www.ncbi.nlm.nih.gov/pubmed/36295225 http://dx.doi.org/10.3390/ma15207158 |
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author | Kim, Ji-Wook Kim, Dong-Yul Won, Hong-In Noh, Yoo-Jeong Ko, Dae-Cheol Jang, Jin-Seok |
author_facet | Kim, Ji-Wook Kim, Dong-Yul Won, Hong-In Noh, Yoo-Jeong Ko, Dae-Cheol Jang, Jin-Seok |
author_sort | Kim, Ji-Wook |
collection | PubMed |
description | To evaluate the dynamic characteristics at all positions of the main spindle of a machine tool, an experimental point was selected using a full factorial design, and a vibration test was conducted. Based on the measurement position, the resonant frequency was distributed from approximately 236 to 242 Hz. The approximation model was evaluated based on its resonant frequencies and dynamic stiffness using regression and interpolation methods. The accuracy of the resonant frequency demonstrated by the kriging method was approximately 89%, whereas the highest accuracy of the dynamic stiffness demonstrated by the polynomial regression method was 81%. To further verify the approximation model, its dynamic characteristics were measured and verified at additional experimental points. The maximum errors yielded by the model, in terms of the resonant frequency and dynamic stiffness, were 1.6% and 7.1%, respectively. |
format | Online Article Text |
id | pubmed-9609942 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-96099422022-10-28 Approximation Model Development and Dynamic Characteristic Analysis Based on Spindle Position of Machining Center Kim, Ji-Wook Kim, Dong-Yul Won, Hong-In Noh, Yoo-Jeong Ko, Dae-Cheol Jang, Jin-Seok Materials (Basel) Article To evaluate the dynamic characteristics at all positions of the main spindle of a machine tool, an experimental point was selected using a full factorial design, and a vibration test was conducted. Based on the measurement position, the resonant frequency was distributed from approximately 236 to 242 Hz. The approximation model was evaluated based on its resonant frequencies and dynamic stiffness using regression and interpolation methods. The accuracy of the resonant frequency demonstrated by the kriging method was approximately 89%, whereas the highest accuracy of the dynamic stiffness demonstrated by the polynomial regression method was 81%. To further verify the approximation model, its dynamic characteristics were measured and verified at additional experimental points. The maximum errors yielded by the model, in terms of the resonant frequency and dynamic stiffness, were 1.6% and 7.1%, respectively. MDPI 2022-10-14 /pmc/articles/PMC9609942/ /pubmed/36295225 http://dx.doi.org/10.3390/ma15207158 Text en © 2022 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 Kim, Ji-Wook Kim, Dong-Yul Won, Hong-In Noh, Yoo-Jeong Ko, Dae-Cheol Jang, Jin-Seok Approximation Model Development and Dynamic Characteristic Analysis Based on Spindle Position of Machining Center |
title | Approximation Model Development and Dynamic Characteristic Analysis Based on Spindle Position of Machining Center |
title_full | Approximation Model Development and Dynamic Characteristic Analysis Based on Spindle Position of Machining Center |
title_fullStr | Approximation Model Development and Dynamic Characteristic Analysis Based on Spindle Position of Machining Center |
title_full_unstemmed | Approximation Model Development and Dynamic Characteristic Analysis Based on Spindle Position of Machining Center |
title_short | Approximation Model Development and Dynamic Characteristic Analysis Based on Spindle Position of Machining Center |
title_sort | approximation model development and dynamic characteristic analysis based on spindle position of machining center |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9609942/ https://www.ncbi.nlm.nih.gov/pubmed/36295225 http://dx.doi.org/10.3390/ma15207158 |
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