Experimentalstudy of curling ─Measurements of curlratio of a curling stone ─

NITTONO, Taro; KADOWAKI, Kimitaka; KOMAGOME, Toshihiro; Tokumoto, Masaru; Hattori, Katsumi; Maeno, Norikazu

doi:10.5331/seppyo.75.3_137

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…Figure 5 shows the relationship between the curl distance and sliding velocity measured by delivering a stone on a curling ice sheet. 37,38 Images of the sliding stone were taken with two charge-coupled device (CCD) cameras from 3 m above the ice and at an interval of 0.1 s, and the images were analyzed to give the translational position of the center of mass and angle of rotation with accuracies of 61.7 mm and 60.0082 rad (0.47°), respectively. In Figure 5, the curl distance measured is plotted as ''curl ratio,''C, which is defined 8,9 as C = D/L, where D is the curl distance when a stone slides the distance L. Theoretically, C is defined as the instantaneous sliding direction at each instantaneous point of sliding trajectory, but, practically, the quantity is obtained using values of D and L measured in a finite time.…”

Section: Scientific Measurements Of Stone Dynamicsmentioning

confidence: 99%

Assignments and progress of curling stone dynamics

Maeno

2016

Proceedings of the Institution of Mechanical Engineers, Part P:

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The sport of curling has a long history over 500 years and, consequently, a variety of information and experiences have been accumulated on the technique, strategy, coaching, and other facets of the sport. However, very few detailed scientific or quantitative investigations have been made, especially on the stone dynamics, such that a fundamental understanding of the dynamics has yet to be achieved. This report summarizes the previous theoretical and experimental studies of stone dynamics and aims at making clear the areas yet to be solved.

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Section: Scientific Measurements Of Stone Dynamicsmentioning

confidence: 99%

Assignments and progress of curling stone dynamics

Maeno

2016

Proceedings of the Institution of Mechanical Engineers, Part P:

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Informatics to Support Tactics and Strategies in Curling

Masui¹,

Hirata²,

Otani³

et al. 2016

Int. J. Automation Technol.

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This paper presents game information analysis by utilizing a digital scorebook system, as the first tool for curling informatics, which supports coaches and players in realizing smart tactics and strategies in the sport of curling. Our research project, called “Curling Informatics,” aims to develop an environment to support curling strategies and tactics by realizing methods to record game information, perform analysis, and provide visualization and sharing of the information.We found a significant correlation between the differences in shot accuracies and scores from game information collected by our digital scorebook system for more than 200 games played by the Japanese national class. The results suggest that the difference in shot accuracies is related to the difference in game scores. This is valuable new knowledge to support strategic/tactical planning in curling games. However, the correlation for games involving world-class teams becomes weaker than for the Japanese national class because there is scarcely any difference in shot accuracies.

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Experimentalstudy of curling ─Measurements of curlratio of a curling stone ─

Cited by 2 publications

References 9 publications

Assignments and progress of curling stone dynamics

Assignments and progress of curling stone dynamics

Informatics to Support Tactics and Strategies in Curling

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