Cargando…
Force prediction in the cylindrical grip for a model of hand prosthesis
The aim of this paper is to present an analytical method of calculating forces acting on the thumb, index, middle finger, and metacarpal part of a hand prosthesis in a cylindrical grip. This prehension pattern represents a common operation of grabbing and manipulating everyday life objects. The desi...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10567731/ https://www.ncbi.nlm.nih.gov/pubmed/37821502 http://dx.doi.org/10.1038/s41598-023-43600-1 |
_version_ | 1785119196615540736 |
---|---|
author | Drelich, Ewelina Tracz, Jan Cisowski, Adam Kowalik, Michał Figurski, Aleksy Kwacz, Monika Rządkowski, Witold |
author_facet | Drelich, Ewelina Tracz, Jan Cisowski, Adam Kowalik, Michał Figurski, Aleksy Kwacz, Monika Rządkowski, Witold |
author_sort | Drelich, Ewelina |
collection | PubMed |
description | The aim of this paper is to present an analytical method of calculating forces acting on the thumb, index, middle finger, and metacarpal part of a hand prosthesis in a cylindrical grip. This prehension pattern represents a common operation of grabbing and manipulating everyday life objects. The design process assumed that such a prosthesis would have 5 fully operating fingers and 18 total degrees of freedom: three for each finger including the thumb, and another three for the wrist. The assumed load was 1 kg and the diameter equaled 70 mm, representing a water bottle. The method was based on analytical mechanics and as opposed to experiments or numerical methods does not require many resources. The calculations involved solving a system with seven unknown forces using an equilibrium equation for forces and moments in all three axes. The resulting equations were presented in a matrix form and solved using MATLAB software. The validation of the method with an experiment using FSR sensors and comparing it to other reports showed differences in index and middle finger involvement. However, the total sum of forces was similar, therefore it is reasoned that the grip can be performed and the prediction was accurate for the thumb and metacarpal. When using the model, the friction coefficient must be chosen with a safe margin as it influences the grip force. The presented method can be used for other models and designs by inserting their dimensions into the equations and solving them numerically to obtain forces useful in mechatronics design. |
format | Online Article Text |
id | pubmed-10567731 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-105677312023-10-13 Force prediction in the cylindrical grip for a model of hand prosthesis Drelich, Ewelina Tracz, Jan Cisowski, Adam Kowalik, Michał Figurski, Aleksy Kwacz, Monika Rządkowski, Witold Sci Rep Article The aim of this paper is to present an analytical method of calculating forces acting on the thumb, index, middle finger, and metacarpal part of a hand prosthesis in a cylindrical grip. This prehension pattern represents a common operation of grabbing and manipulating everyday life objects. The design process assumed that such a prosthesis would have 5 fully operating fingers and 18 total degrees of freedom: three for each finger including the thumb, and another three for the wrist. The assumed load was 1 kg and the diameter equaled 70 mm, representing a water bottle. The method was based on analytical mechanics and as opposed to experiments or numerical methods does not require many resources. The calculations involved solving a system with seven unknown forces using an equilibrium equation for forces and moments in all three axes. The resulting equations were presented in a matrix form and solved using MATLAB software. The validation of the method with an experiment using FSR sensors and comparing it to other reports showed differences in index and middle finger involvement. However, the total sum of forces was similar, therefore it is reasoned that the grip can be performed and the prediction was accurate for the thumb and metacarpal. When using the model, the friction coefficient must be chosen with a safe margin as it influences the grip force. The presented method can be used for other models and designs by inserting their dimensions into the equations and solving them numerically to obtain forces useful in mechatronics design. Nature Publishing Group UK 2023-10-11 /pmc/articles/PMC10567731/ /pubmed/37821502 http://dx.doi.org/10.1038/s41598-023-43600-1 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Drelich, Ewelina Tracz, Jan Cisowski, Adam Kowalik, Michał Figurski, Aleksy Kwacz, Monika Rządkowski, Witold Force prediction in the cylindrical grip for a model of hand prosthesis |
title | Force prediction in the cylindrical grip for a model of hand prosthesis |
title_full | Force prediction in the cylindrical grip for a model of hand prosthesis |
title_fullStr | Force prediction in the cylindrical grip for a model of hand prosthesis |
title_full_unstemmed | Force prediction in the cylindrical grip for a model of hand prosthesis |
title_short | Force prediction in the cylindrical grip for a model of hand prosthesis |
title_sort | force prediction in the cylindrical grip for a model of hand prosthesis |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10567731/ https://www.ncbi.nlm.nih.gov/pubmed/37821502 http://dx.doi.org/10.1038/s41598-023-43600-1 |
work_keys_str_mv | AT drelichewelina forcepredictioninthecylindricalgripforamodelofhandprosthesis AT traczjan forcepredictioninthecylindricalgripforamodelofhandprosthesis AT cisowskiadam forcepredictioninthecylindricalgripforamodelofhandprosthesis AT kowalikmichał forcepredictioninthecylindricalgripforamodelofhandprosthesis AT figurskialeksy forcepredictioninthecylindricalgripforamodelofhandprosthesis AT kwaczmonika forcepredictioninthecylindricalgripforamodelofhandprosthesis AT rzadkowskiwitold forcepredictioninthecylindricalgripforamodelofhandprosthesis |