College Physics ›› 2017, Vol. 36 ›› Issue (12): 54-56.doi: 10.16854/j.cnki.1000-0712.2017.12.014

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Tricycle of star and elliptical type

JIANG Wen1,QIU Wei-gang1,2   

  1. 1.Department of Physics,Huzhou Teachers College,Huzhou,Zhejiang 313000,China; 2.Physical Visual Effects Studio,Huzhou Teachers College,Huzhou,Zhejiang,313000,China
  • Received:2017-01-31 Revised:2017-04-19 Online:2017-12-20 Published:2017-12-20

Abstract: The rolling motion of wheel is decomposed into placement of center of mass(COM)and rotation around the COM axis.The parametric equation of wheel and road is deduced from the conditions that velocity of contact point is equal to zero and the height of COM is constant.An example of tricycle of elliptical wheel and see-saw road is given.The animation of rolling and model are also given.

Key words: wheel, road, ellips