A CAD Based Dynamic analysis approach to AK prosthesis design

Manoj Soni, S. Maji, Sneh Anand, U. Singh

Journal of Vibroengineering, Vol. 12, Issue 2, 2010, p. 170-176.
Received 18 February 2009; accepted 7 June 2010; published 30 June 2010

Copyright © 2010 Vibroengineering This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Abstract. Paper introduces dynamic simulation approach based on computer aided design (CAD), which was applied for development of a passive above-knee (AK) prosthesis to enable a one leg amputated patient with a reasonable size of stump. A locally-fabricated prosthetic knee was modified to develop a pneumatic damper-controlled AK prosthesis. Design studies were carried out to find center of gravity and moment of inertia of the assembly. CAD dynamic analysis was conducted on ProE software and the results were compared to actual swing time found experimentally in the lab. The leg was tested for validation on subjects with positive results

Keywords: CAD, AK prosthesis, swing time and dynamic analysis.