The validity of a rigid body model of a cricket ball-bat impact

JAMES, David, CURTIS, David, ALLEN, Tom and RIPPIN, Tom (2012). The validity of a rigid body model of a cricket ball-bat impact. Procedia engineering, 34, 682-687.

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Rigid body impact models have been used in a number of racket and bat sports to better understand how physical properties such as mass, moment of inertia and balance point can affect ball rebound speed. Cricket is sport whereby players can select their preferred bat with a wide range of different physical properties. No previous studies have attempted to validate the use of rigidbodyimpactmodels in cricket, and player choices are typically made through intuition with little consideration of impact mechanics. This study measured the performance of three different cricketbats in freely suspended impact tests, and compared the results to predictions made by arigidbodymodel. Ball rebound speed was measured using high speed video on impacts locations across the blade. The physical properties of the different bats were measured and used as the input for the rigidbodymodel predictions. It was found that for impact locations close to the bat's centre of mass, the rigidbodymodel worked well, but some discrepancies were found as the impact location moved away from the centre of mass. These discrepancies were believed to be caused by the large vibrations evident during the impacts (a clear violation of the model's rigidbody assumption) and the erroneous method that was employed to measure the bats coefficient of restitution. It was concluded that using arigidbodymodel to describe the impact of acricketball with acricketbat is valid as a first approximation and that it has significant value in terms of exploring how changing abat's physical properties may affect its performance.

Item Type: Article
Additional Information: Paper presented at the Engineering of Sport Conference 2012, 9th Conference of the International Sports Engineering Association (ISEA), Boston, USA, 9-13 July 2012.
Research Institute, Centre or Group - Does NOT include content added after October 2018: Centre for Sports Engineering Research
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Page Range: 682-687
Depositing User: Carole Harris
Date Deposited: 04 Sep 2012 10:01
Last Modified: 18 Mar 2021 20:15

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