Force approximation of the human hand in contact with a climbing wall handle
This paper presents a new algorithm that approximates the forces that develop between a human hand and the handles of a climbing wall. A hand-to-handle model was developed using this algorithm for the Open Dynamics Engine physics solver, which can be plugged into a full-body climbing simulation to i...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Polish Academy of Sciences
2020-09-01
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| Series: | Archive of Mechanical Engineering |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/115027/PDF/AME_2020_131695.pdf |
| _version_ | 1828427694060077056 |
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| author | Grzegorz Orzechowski Perttu Hämäläinen Aki Mikkola |
| author_facet | Grzegorz Orzechowski Perttu Hämäläinen Aki Mikkola |
| author_sort | Grzegorz Orzechowski |
| collection | DOAJ |
| description | This paper presents a new algorithm that approximates the forces that develop between a human hand and the handles of a climbing wall. A hand-to-handle model was developed using this algorithm for the Open Dynamics Engine physics solver, which can be plugged into a full-body climbing simulation to improve results. The model data are based on biomechanical measurements of the average population presented in previously published research. The main objective of this work was to identify maximum forces given hand orientation and force direction with respect to the climbing wall handles. Stated as a nonlinear programming problem, solution was achieved by applying a stochastic Covariance Matrix Adaptation Evolution Strategy (CMA-ES). The algorithm for force approximation works consistently and provides reasonable results when gravity is neglected. However, including gravity results in a number of issues. Since the weight of the hand is small in relation to the hand-to-handle forces, neglecting gravity does not significantly affect the reliability and quality of the solution. |
| first_indexed | 2024-12-10T17:06:27Z |
| format | Article |
| id | doaj.art-33ffb6f22870426390541c54dbdca98d |
| institution | Directory Open Access Journal |
| issn | 2300-1895 |
| language | English |
| last_indexed | 2024-12-10T17:06:27Z |
| publishDate | 2020-09-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archive of Mechanical Engineering |
| spelling | doaj.art-33ffb6f22870426390541c54dbdca98d2022-12-22T01:40:26ZengPolish Academy of SciencesArchive of Mechanical Engineering2300-18952020-09-01vol. 67No 3263278https://doi.org/10.24425/ame.2020.131695Force approximation of the human hand in contact with a climbing wall handleGrzegorz Orzechowski0Perttu Hämäläinen1Aki Mikkola2Department of Mechanical Engineering, LUT University, Lappeenranta, Finland.Department of Computer Science, Aalto University, Espoo, Finland.Department of Mechanical Engineering, LUT University, Lappeenranta, Finland.This paper presents a new algorithm that approximates the forces that develop between a human hand and the handles of a climbing wall. A hand-to-handle model was developed using this algorithm for the Open Dynamics Engine physics solver, which can be plugged into a full-body climbing simulation to improve results. The model data are based on biomechanical measurements of the average population presented in previously published research. The main objective of this work was to identify maximum forces given hand orientation and force direction with respect to the climbing wall handles. Stated as a nonlinear programming problem, solution was achieved by applying a stochastic Covariance Matrix Adaptation Evolution Strategy (CMA-ES). The algorithm for force approximation works consistently and provides reasonable results when gravity is neglected. However, including gravity results in a number of issues. Since the weight of the hand is small in relation to the hand-to-handle forces, neglecting gravity does not significantly affect the reliability and quality of the solution.https://journals.pan.pl/Content/115027/PDF/AME_2020_131695.pdfwall climbinghand-to-handle interactioncontact dynamicssupport force approximationquasi-static solution |
| spellingShingle | Grzegorz Orzechowski Perttu Hämäläinen Aki Mikkola Force approximation of the human hand in contact with a climbing wall handle Archive of Mechanical Engineering wall climbing hand-to-handle interaction contact dynamics support force approximation quasi-static solution |
| title | Force approximation of the human hand in contact with a climbing wall handle |
| title_full | Force approximation of the human hand in contact with a climbing wall handle |
| title_fullStr | Force approximation of the human hand in contact with a climbing wall handle |
| title_full_unstemmed | Force approximation of the human hand in contact with a climbing wall handle |
| title_short | Force approximation of the human hand in contact with a climbing wall handle |
| title_sort | force approximation of the human hand in contact with a climbing wall handle |
| topic | wall climbing hand-to-handle interaction contact dynamics support force approximation quasi-static solution |
| url | https://journals.pan.pl/Content/115027/PDF/AME_2020_131695.pdf |
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