Designing cricket bats using parametric modeling and genetic algorithms

Mazloomi, Mohammad Sadegh; Saadatfar, Mohammad; Evans, Philip D.

doi:10.1007/s00226-020-01169-2

Cited by 6 publications

(6 citation statements)

References 16 publications

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“…The mass was removed from both ends of the barrel, making its cross-section non-circular at those sections. These optimized designs incorporated features seen in state-of-the-art cricket bats, which are thicker in the sweet spot of the bat and slimmer toward both ends of the blade [22]. Table 2 shows the design variables, RMSD and the total mass of the baseline, Big Stick and optimized designs for maple and ash.…”

Section: Resultsmentioning

confidence: 99%

“…Our approach of using parametric modeling in combination with GA optimization to design a new baseball bat has not been used before, although it has been used to create performance-driven geometries for bats used for cricket and field hockey [22,40], and it potentially could be extended to design wooden bats used in other sports such as hurling. Our algorithmically designed baseball bat used the upper limits for the design variables defined by Rule 3 [8].…”

Section: Discussionmentioning

confidence: 99%

“…In this paper, we minimize the distances between the nodal points and COP of a baseball bat using parametric modeling and genetic algorithms (GAs). Our research with wooden cricket bats revealed novel design features with the potential to improve the performance of bats [22]. Similarly, we hypothesize that new design features for baseball bats will emerge from their shape optimization using parametric modeling and genetic algorithms (GAs).…”

Section: Introductionmentioning

confidence: 92%

“…In addition, the axis symmetry of baseball bats is different to that of cricket bats as is the complicated performance Previously, we showed that parametric finite element modeling and optimization algorithms were able optimize the dynamic and vibrational characteristics associated with the improved performance of a cricket bat made from willow (Salix spp.) [22]. We use a similar approach here to optimize the performance of a baseball bat, but our research differs from previous research on cricket bats because here we examine whether the optimal bat geometry is influenced by the wood species (ash vs. maple).…”

Section: Introductionmentioning

confidence: 99%

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Shape Optimization of a Wooden Baseball Bat Using Parametric Modeling and Genetic Algorithms

Mazloomi

Evans

2021

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Baseball is a popular and very lucrative bat-and-ball sport that uses a wooden bat to score runs. We hypothesize that new design features for baseball bats will emerge from their shape optimization using parametric modeling and genetic algorithms. We converge the location of two points on bats made from maple (Acer sp.) and ash (Fraxinus sp.) wood that are associated with increased velocity of a ball rebounding off a bat: vibrational nodal points and the center of percussion (COP). Our modeling and optimization approach was able to reduce the distance between the nodal points and COP from 166.0 mm to 52.1 mm. This change was similar in both wood species and resulted from changes to the geometry of the bat, specifically shifting of the mass of the bat toward the center of the barrel and removing mass from the very end of the barrel. We conclude that the combination of parametric finite element modeling and optimization using genetic algorithms is a powerful tool for exploring virtual designs for baseball bats that are based on performance criteria and suggest that our designs could be realized in practice using subtractive manufacturing technology.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Shape Optimization of a Wooden Baseball Bat Using Parametric Modeling and Genetic Algorithms

Mazloomi

Evans

2021

Self Cite

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“…The shape of an object can influence its mechanical properties, including its stiffness, centre of mass and moments of inertia (MOI) [ 1 ]. In many areas of engineering and biomechanics, simple geometries, like beams, plates, and cylinders, are used to approximate shape [ 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

Morphometrics for sports mechanics: Showcasing tennis racket shape diversity

2022

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Tennis racket design has changed from its conception in 1874. While we know that modern tennis rackets are lighter and have larger heads than their wooden predecessors, it is unknown how their gross shape has changed specifically. It is also unknown how racket shape is related to factors that influence performance, like the Transverse and Polar moments of inertia. The aim of this study was to quantify how tennis racket shape has changed over time, with a view to furthering our understanding of how such developments have influenced the game. Two-dimensional morphometric analysis was applied to silhouettes extracted from photographs of 514 rackets dating from 1874 to 2017. A principal component analysis was conducted on silhouette outlines, to allow racket shape to be summarised. The rackets were grouped by age and material for further analysis. Principal Component 1 accounted for 87% of the variation in racket shape. A pairwise Pearson’s correlation test indicated that head width and length were both strongly correlated to Principal Component 1 (r = 0.916 & r = 0.801, p-values<0.001). Principal Component 1 was also correlated to the Polar (r = 0.862, p<0.001) and Transverse (r = -0.506, p<0.001) moments of inertia. Racket age and material had a medium (p<0.001, η2p = 0.074) and small (p = 0.015, η2p = 0.017) effect on Principal Component 1, respectively. Mean racket shapes were also generated from the morphometric analyses for the material and age groupings, and we consider how these shape changes may have influenced performance and injury risk. These mean shape groupings could support the development of models, such as finite element analysis, for predicting how historical developments in tennis equipment have affected performance and injury risk.

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Hybrid Design Optimization of Sandwich Panels with Gradient Shape Anti-Tetrachiral Auxetic Core for Vibroacoustic Applications

Mazloomi

Ranjbar

2021

Transp Porous Med

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Designing cricket bats using parametric modeling and genetic algorithms

Cited by 6 publications

References 16 publications

Shape Optimization of a Wooden Baseball Bat Using Parametric Modeling and Genetic Algorithms

Shape Optimization of a Wooden Baseball Bat Using Parametric Modeling and Genetic Algorithms

Morphometrics for sports mechanics: Showcasing tennis racket shape diversity

Hybrid Design Optimization of Sandwich Panels with Gradient Shape Anti-Tetrachiral Auxetic Core for Vibroacoustic Applications

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