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桌球球體改變對膠皮恢復係數與不同膠水效果之探討

The Effects of the Changed Table Tennis Ball Size to the Rubber, Coefficient of Friction and Different Glue

摘要


本研究針對桌球球體由38mm變成40mm後相對的力學特性,藉由不同的膠皮與膠水進 行分析比較,提供選手選擇最適合的器材組合。經由自由落體法、碰撞法與實際操作,經不斷測試的結果可以得到以下結論: 一、不同直徑球體以自由落體撞擊(靜態)同一膠皮,小球反彈比大球高。 二、同一型號膠皮,恢復係數會隨海綿厚、薄而增減,也會隨硬度大小而增減。 三、在彈性效果上,快速膠水比普通膠水佳;而旋轉上,需再進一步驗證。

關鍵字

桌球 恢復係數 膠水 旋轉

並列摘要


This experiment is to analyze the effects of rubbers and glue after the diameter of table tennis ball changing from 38mm to 40mm in order to find the most suitable racket for table tennis plays. By angular Method, Measurement Method, Free-Fall Method and Collision. After treating the data and discussion, the conclusions were obtained. 1' In different dimension of the ball (38mm and 40mm) to hit the rubbers (in the static), dimension of 38mm ball rebounds higher than 40mm ball. 2' Under the same size of rubbers, the Coefficient of Restitution will be changed followed the variance of rubbers thickness as well as the stiffness of sponge. 3' In the aspect of the elasticity, glue of Speed better than glue of Normal, but the further investigation will be needed on the subject of spinning ball.

並列關鍵字

Table Tennis Coefficient of Restitution Glue Spin

參考文獻


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吳德成(1998)。桌球技術報告書。體育學院。
李玉麟、賴平常(2000)。國內桌球運動人口對快速膠水的認知與使用率之探討。德育學報。16
杜美華、李玉麟(2000)。從桌球球體加大探討器材使用對策。國立體育學院論叢。11(1),225-235。
杜美華、李玉麟(2003)。桌球優秀選手對球體加大之器材因應。中華桌球。1,17-24。

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