Dynamic Lumped Element Response of the Human Fingerpad-Reference-Cited by-同舟云学术

Dynamic Lumped Element Response of the Human Fingerpad

Published:1999-04-01 Issue:2 Volume:121 Page:178-183
ISSN:0148-0731
Container-title:Journal of Biomechanical Engineering
language:en
Short-container-title:

Author:

Pawluk D. T. V.¹,Howe R. D.¹

Affiliation:

1. Harvard University, Division of Engineering and Applied Sciences, Pierce Hall, 29 Oxford Street, Cambridge, MA 02138

Abstract

The dynamic response of the fingerpad plays an important role in the tactile sensory response and precision manipulation, as well as in ergonomic design. This paper investigates the dynamic lumped element response of the human fingerpad in vivo to a compressive load. A flat probe indented the fingerpad at a constant velocity, then held a constant position. The resulting force (0–2 N) increased rapidly with indentation, then relaxed during the hold phase. A quasilinear viscoelastic model successfully explained the experimental data. The instantaneous elastic response increased exponentially with position, and the reduced relaxation function included three decaying exponentials (with time constants of approximately 4 ms, 70 ms, and 1.4 s) plus a constant. The model was confirmed with data from sinusoidal displacement trajectories.

Publisher

ASME International

Subject

Physiology (medical),Biomedical Engineering

Link

http://asmedigitalcollection.asme.org/biomechanical/article-pdf/121/2/178/5492394/178_1.pdf

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4. Gulati, R.J., 1995, “Determination of Mechanical Properties of the Human Fingerpad, In Vivo, Using a Tactile Stimulator,” M.Sc. Thesis, Boston University.

5. Gulati, R.J., and M.A. Srinivasan, 1995, “Human Fingerpad Under Indentation. I: Static and Dynamic Force Response,” ASME BED-Vol. 29, 1995 Bioengineering Conference.

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