Transactions of the Japan Society of Mechanical Engineers Series C
Online ISSN : 1884-8354
Print ISSN : 0387-5024
Operation of Skis and Mechanism of Turns
Kenji HASEGAWAShiro SHIMIZUTadashi KOTERA
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1998 Volume 64 Issue 623 Pages 2362-2368

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Abstract

We analyse the mechanism of the Alpineski robot which can make only the rotation of hip joints around the femur axes but can execute repeated turns such as Pfiug Bogen, Stemm Turn and Parallel Turn. We take this Alpineski robot as a model of human skier, in order to clarify the relation between the motion of skier and the direction of skis. Assuming that the Alpineski robot is made of rigid wire-frame, we derive the equations which connect the angle of rotation of hip joints around femur axes with the edging angle of skis and the direction of skis relative to skier. We also derive the equations of motion for this model and solve them under realistic conditions to try the computer simulation of the turning behavior of the Alpineski robot on the computer display.

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