A model of the twin-cam compound bow with cam design options

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Tiermas , M 2017 , ' A model of the twin-cam compound bow with cam design options ' , Meccanica , vol. 52 , no. 1-2 , pp. 421-429 . https://doi.org/10.1007/s11012-016-0395-1

Title: A model of the twin-cam compound bow with cam design options
Author: Tiermas, Marko
Other contributor: University of Helsinki, Department of Physics
Date: 2017-01
Language: eng
Number of pages: 9
Belongs to series: Meccanica
ISSN: 0025-6455
DOI: https://doi.org/10.1007/s11012-016-0395-1
URI: http://hdl.handle.net/10138/298964
Abstract: A mathematical model of an archery twin-cam compound bow is introduced. The deflection of the limb tip is based on the modified Hickman model of the traditional bow. The cams are modelled with the help of cubic splines, and the derived non-linear equations are simplified and solved numerically. The force-draw curve of a commercial twin-cam compound bow is measured and compared to the prediction of the model. As an example, the cams of the compound bow are virtually modified in order to improve the effectiveness of the bow. The model presented here can be used when adjusting the twin-cam compound bow and also when designing the cams.
Subject: Compound bow
Force-draw curve
Cam design
114 Physical sciences
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