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Evaluation of tractor driving vibration fatigue based on multiple physiological parameters

The vibration generated by tractor field operations will seriously affect the comfort and health of the driver. The low frequency vibration generated by the engine and ground excitation is similar to the natural frequency of human organs. Long term operation in this environment will resonate with th...

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Detalles Bibliográficos
Autores principales: Gao, Ruitao, Yan, Huachao, Yang, Zhou
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8279742/
https://www.ncbi.nlm.nih.gov/pubmed/34260634
http://dx.doi.org/10.1371/journal.pone.0254636
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author Gao, Ruitao
Yan, Huachao
Yang, Zhou
author_facet Gao, Ruitao
Yan, Huachao
Yang, Zhou
author_sort Gao, Ruitao
collection PubMed
description The vibration generated by tractor field operations will seriously affect the comfort and health of the driver. The low frequency vibration generated by the engine and ground excitation is similar to the natural frequency of human organs. Long term operation in this environment will resonate with the organs and affect drivers’ health. To investigate this possibility, in this paper we carried out a collection experiment of human physiological indicators relevant to vibration fatigue. Four physiological signals of surface electromyography, skin electricity, skin temperature, and photoplethysmography signal were collected while the subjects experienced vibration. Several features of physiological signals as well as the law of signal features changing with fatigue are studied. The test results show that with the increase of human fatigue, the overall physiological parameters show the following trends: The median frequency of the human body surface electromyography and the slope of skin surface temperature decreases, the value of skin conductivity and the mean value of the photoplethysmography signal increases. Furthermore, this paper proposes a vibration comfort evaluation method based on multiple physiological parameters of the human body. An artificial neural network model is trained with test samples, and the prediction accuracy rate reaches 88.9%. Finally, the vibration conditions are changed by the shock-absorbing suspension of a tractor, verifying the effectiveness of the physiological signal changing with the vibration of the human body. The established prediction model can also be used to objectively reflect the discomfort of the human body under different working conditions and provide a basis for structural design optimization.
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spelling pubmed-82797422021-07-31 Evaluation of tractor driving vibration fatigue based on multiple physiological parameters Gao, Ruitao Yan, Huachao Yang, Zhou PLoS One Research Article The vibration generated by tractor field operations will seriously affect the comfort and health of the driver. The low frequency vibration generated by the engine and ground excitation is similar to the natural frequency of human organs. Long term operation in this environment will resonate with the organs and affect drivers’ health. To investigate this possibility, in this paper we carried out a collection experiment of human physiological indicators relevant to vibration fatigue. Four physiological signals of surface electromyography, skin electricity, skin temperature, and photoplethysmography signal were collected while the subjects experienced vibration. Several features of physiological signals as well as the law of signal features changing with fatigue are studied. The test results show that with the increase of human fatigue, the overall physiological parameters show the following trends: The median frequency of the human body surface electromyography and the slope of skin surface temperature decreases, the value of skin conductivity and the mean value of the photoplethysmography signal increases. Furthermore, this paper proposes a vibration comfort evaluation method based on multiple physiological parameters of the human body. An artificial neural network model is trained with test samples, and the prediction accuracy rate reaches 88.9%. Finally, the vibration conditions are changed by the shock-absorbing suspension of a tractor, verifying the effectiveness of the physiological signal changing with the vibration of the human body. The established prediction model can also be used to objectively reflect the discomfort of the human body under different working conditions and provide a basis for structural design optimization. Public Library of Science 2021-07-14 /pmc/articles/PMC8279742/ /pubmed/34260634 http://dx.doi.org/10.1371/journal.pone.0254636 Text en © 2021 Gao et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Gao, Ruitao
Yan, Huachao
Yang, Zhou
Evaluation of tractor driving vibration fatigue based on multiple physiological parameters
title Evaluation of tractor driving vibration fatigue based on multiple physiological parameters
title_full Evaluation of tractor driving vibration fatigue based on multiple physiological parameters
title_fullStr Evaluation of tractor driving vibration fatigue based on multiple physiological parameters
title_full_unstemmed Evaluation of tractor driving vibration fatigue based on multiple physiological parameters
title_short Evaluation of tractor driving vibration fatigue based on multiple physiological parameters
title_sort evaluation of tractor driving vibration fatigue based on multiple physiological parameters
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8279742/
https://www.ncbi.nlm.nih.gov/pubmed/34260634
http://dx.doi.org/10.1371/journal.pone.0254636
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