Next Article in Journal
Statistical Mechanics of Long Walks in Dynamic Complex Networks: Statistical Arguments for Diversifying Selection
Previous Article in Journal
Analysis of Mixing Processes of LPG Gases in Tanks When Transporting by Sea
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Dynamics
Volume 2
Issue 3
10.3390/dynamics2030012
dynamics-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Biomechanical Upper Limb Model for Postural Tremor Absorber Design

by
Sarah Gebai
1,2,3,*,
Gwendal Cumunel
1,
Mohammad Hammoud
2,3,
Gilles Foret
1,
Emmanuel Roze
4,5 and
Elodie Hainque
4,5
1
Lab Navier, ENPC, CNRS, Université Gustave Eiffel, F-77447 Marne-la-Vallée, France
2
SDM Research Group, International University of Beirut BIU, Beirut 146404, Lebanon
3
Mechanical Department, Lebanese International University LIU, Bekaa 1803, Lebanon
4
Faculté de Médecine, Institut du Cerveau et de la Moëlle Épinière, Sorbonne Université, UMR S 1127, Inserm U 1127, UMR CNRS 7225, F-75013 Paris, France
5
Département de Neurologie, Hôpital Pitié-Salpêtrière, AP-HP, F-75013 Paris, France
*
Author to whom correspondence should be addressed.
Dynamics 2022, 2(3), 234-251; https://doi.org/10.3390/dynamics2030012
Submission received: 20 April 2022 / Revised: 24 July 2022 / Accepted: 26 July 2022 / Published: 1 August 2022
Browse Figures
Versions Notes

Abstract

The current work promotes the use of non-invasive devices for reducing involuntary tremor of human upper limb. It concentrates on building up an upper limb model used to reflect the measured tremor signal and is suitable for the design of a passive vibration controller. A dynamic model of the upper limb is excited by the measured electromyography signal scaled to reach the wrist joint angular displacement measured by an inertial measurement unit for a patient with postural tremor. A passive tuned-mass-damper (TMD) placed on the hand is designed as a stainless-steel beam with a length of 91 mm and a cross-sectional diameter of 0.79 mm, holding a mass of 14.13 g. The damping ratio and mass position of the TMD are optimized numerically. The fundamental frequency of the TMD is derived and validated experimentally through measurements for different mass positions, with a relative error of 0.65%. The modal damping ratio of the beam is identified experimentally as 0.14% and increases to 0.26–0.46% after adding the mass at different positions. The optimized three TMDs reduce 97.4% of the critical amplitude of the power spectral density at the wrist joint.
Keywords: electromyography; postural tremor control; optimized tuned-mass-damper; upper limb model electromyography; postural tremor control; optimized tuned-mass-damper; upper limb model

Share and Cite

MDPI and ACS Style

Gebai, S.; Cumunel, G.; Hammoud, M.; Foret, G.; Roze, E.; Hainque, E. Biomechanical Upper Limb Model for Postural Tremor Absorber Design. Dynamics 2022, 2, 234-251. https://doi.org/10.3390/dynamics2030012

AMA Style

Gebai S, Cumunel G, Hammoud M, Foret G, Roze E, Hainque E. Biomechanical Upper Limb Model for Postural Tremor Absorber Design. Dynamics. 2022; 2(3):234-251. https://doi.org/10.3390/dynamics2030012

Chicago/Turabian Style

Gebai, Sarah, Gwendal Cumunel, Mohammad Hammoud, Gilles Foret, Emmanuel Roze, and Elodie Hainque. 2022. "Biomechanical Upper Limb Model for Postural Tremor Absorber Design" Dynamics 2, no. 3: 234-251. https://doi.org/10.3390/dynamics2030012

APA Style

Gebai, S., Cumunel, G., Hammoud, M., Foret, G., Roze, E., & Hainque, E. (2022). Biomechanical Upper Limb Model for Postural Tremor Absorber Design. Dynamics, 2(3), 234-251. https://doi.org/10.3390/dynamics2030012

Article Metrics

Back to TopTop