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Tuned vibration absorber for suppression of rest tremor in Parkinson's disease

  • S. M. Hashemi
  • M. F. Golnaraghi
  • A. E. Patla
Article

Abstract

A simple approach for the suppression of the tremor associated with Parkinson's disease is presented. The proposed system is a tuned vibration absorber (TVA), which has been very effective in the suppression of vibrations in an experimental model of the human arm with two degrees of freedom. Theoretical and numerical methods were used to study the behaviour of the arm model and to develop an effective tremor reduction approach. Based on these studies, a vibration absorber was designed, tested numerically and fabricated for experimental testing. Expermental investigations indicated that optimum control performance was related to the position of the controller and the excitation frequency. With a distance of 160 mm from the end of forearm, the TVA was found to have the best performance, and, for different tremor frequencies, the vibration of the experimental model was reduced by more than 80%.

Keywords

Parkinson's tremor Passive vibration control Tuned vibration absorbers 

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Copyright information

© IFMBE 2004

Authors and Affiliations

  • S. M. Hashemi
    • 1
  • M. F. Golnaraghi
    • 2
  • A. E. Patla
    • 3
  1. 1.Department of Mech., Aerospace & Ind. Eng.Ryerson UniversitytorontoCanada
  2. 2.Department of Mechanical EngineeringUniversity of WaterlooWaterlooCanada
  3. 3.Department of KinesiologyUniversity of WaterlooWaterlooCanada

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