Where is the centre of percussion in accelerated handheld implements?

Fuss, F 2011, 'Where is the centre of percussion in accelerated handheld implements?', in A. Subic; F. K. Fuss; F. Alam; P. Clifton (ed.) Procedia Engineering, Melbourne, Australia, 28 - 31 August, 2011, pp. 310-314.


Document type: Conference Paper
Collection: Conference Papers

Title Where is the centre of percussion in accelerated handheld implements?
Author(s) Fuss, F
Year 2011
Conference name APCST 2011: 5th Asia-Pacific Congress
Conference location Melbourne, Australia
Conference dates 28 - 31 August, 2011
Proceedings title Procedia Engineering
Editor(s) A. Subic; F. K. Fuss; F. Alam; P. Clifton
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Start page 310
End page 314
Total pages 5
Abstract Handheld implements are usually accelerated. The hand generates a free moment required for acceleration. By considering this torque, the centre of pressure moves further away from the centre of mass of the implement. In implements accelerated by a torque before impact, the centre of pressure is closer to the tip of the implement than in stationary implements. The hand force as a function of time was obtained from simulating impacts at various locations in an implement accelerated by a torque. The hand force was never zero throughout the impact. In higher impact locations, the hand force is negative first and then becomes positive. At the transition from positive to negative, the hand force is instantaneously zero. In lower impact locations, the hand force is always negative.
Subjects Solid Mechanics
Keyword(s) Angular acceleration
Centre of percussion
Hand force
Impact
Implements
Simulation
Torque
DOI - identifier 10.1016/j.proeng.2011.05.090
Copyright notice © 2011 Published by Elsevier Ltd.
ISBN 1877-7058
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