5:15 PM - 6:30 PM
[ACC20-P03] Movement analysis of curling stone
Keywords:curling, ice, curl
youtube on curling world championship was analyzed. curl distance c, angle of spin n and sliding distance s are measured as a function of sliding time t. in initial stage, stone went to linearly, and curl started at middle stage in the neighborhood of 12 second before stop. curl distance (lateral displacement) increased linearly to sliding time t, reached abut 1 m at end. stone turned at 6 to 10 second as increasing time with sliding. coefficient of friction for spin was extremely small and estimated to order of 0.0001 to 0.00001. coefficient of friction f was value of 0.009 to 0.02 with increasing as decreasing velocity. curves c-s, f-s and f-v were derived.