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Sports Engineering

, Volume 20, Issue 2, pp 155–162

First Online: 28 January 2017DOI: 10.1007-s12283-017-0225-2

Cite this article as: Tiermas, M. Sports Eng 2017 20: 155. doi:10.1007-s12283-017-0225-2


An extended offset-eccentric model of an archery twin-round-wheel compound bow is derived. Varying some parameters of the model, the respective effects on the calculated force–draw curve are considered. Two static quality coefficients for the compound bow are introduced. It was found that the twin-round-wheel compound bow can be designed to be more energetic with the help of the model. For a bow with some modifications 18.5% increment of energy was calculated. Also a theoretical limit for the force–draw curve of the compound bow is concluded.

KeywordsCompound bow Force–draw curve Eccentric wheel 

Autor: Marko Tiermas


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