| Project/Area Number |
08680104
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
体育学
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| Research Institution | FUKUI UNIVERSITY |
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Principal Investigator |
SHIMIZU Shiro FUKUI UNIVERSITY,FACULTY OF EDUCATION,PROFESOR, 教育学部, 教授 (30020134)
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| Co-Investigator(Kenkyū-buntansha) |
HASEGAWA Kenji FUKUI UNIVERSITY,FACULTY OF ENGINEERING,PROFESSOR, 工学部, 教授 (80020171)
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| Project Period (FY) |
1996 – 1998
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| Project Status |
Completed (Fiscal Year 1998)
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| Budget Amount *help |
¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1998: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1997: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1996: ¥800,000 (Direct Cost: ¥800,000)
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| Keywords | ALPINE SKIING / ROBOT / COMPUTER / SIMULATION / シミュレーション |
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| Research Abstract |
We have developed various kinds of Alpine skiing robot with a view to clarifying the basic elements of skier' s movements which look complicated during turns. These skiing robots have simple structure and their movements are restricted to the rotations of a few number of their joints only. However, these skiing robots can perform repeated turns continuously and exhibit basic features of the skiing turns performed by human skiers. We therefore take these robots as models of human skier, in order to analyze the mechanism of skiing turn quantitatively. We assume simple mathematical models for the Alpine skiing robots and derive the equations of motion of the models. The interaction between skis and snow surface is assumed to be frictional force. Under realistic conditions, we solve the equations of motion numerically. The solutions are put into computer graphics showing the turning behavior of the model. These computer simulations show that the essential features of turning behavior of the Alpine skiing robots and also those of the human skier are well reproduced. From these results, it is found that the most important element of skier' s movements is the rotation of the hip joints around the femur axes, and an appropriate posture of skier to stable skiing turns is suggested.
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