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Modeling Wheelchair-Users Undergoing Vibrations

[+] Author Affiliations
Korkut Brown, Henryk Flashner, Jill McNitt-Gray

University of Southern California, Los Angeles, CA

Philip Requejo

Rancho Los Amigos National Rehabilitation Center, Downey, CA

Paper No. IMECE2013-64024, pp. V03BT03A006; 9 pages
doi:10.1115/IMECE2013-64024
From:
  • ASME 2013 International Mechanical Engineering Congress and Exposition
  • Volume 3B: Biomedical and Biotechnology Engineering
  • San Diego, California, USA, November 15–21, 2013
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5622-2
  • Copyright © 2013 by ASME

abstract

Experimental data of wheelchair-users with varying levels of spinal-cord injury undergoing impact disturbances while seated in a wheelchair, was used to develop one degree-of-freedom rotational-link models of the wheelchair-users. A procedure based on the Maximum Likelihood estimation method was used to identify the parameters of the proposed models such as stiffness and damping coefficients. A good agreement between experimental and identified models responses was achieved. The proposed approach can be used to categorize the difference in response to vibration of patients with different levels of spinal-cord injury (SCI) and will eventually lead to the development of patient specific design criteria for wheelchair suspension.

Copyright © 2013 by ASME

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