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In a rigid body shown in Figure 1, the position of point P relative to the moving reference frame fixed to the body remains constant, thus,
where v'r & a'r = the velocity & acceleration of point P relative to the moving reference frame, respectively. Therefore, [3] & [4] of Acceleration of a Particle reduce to
where vo & ao = the velocity & acceleration of the origin of the moving reference frame, respectively, and w = the angular velocity of the body. (Under construction!) Let's consider a 2-body kinetic chain, as shown in Figure 2. References & Related-Literature Feltner, M.E. & Dapena, J. (1989). Three-dimensional interactions in a two-segment kinetic chain. Part I: General model. International Journal of Sport Biomechanics 5, 403-419. |
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© Young-Hoo Kwon, 1998- |
Figure 1
[1]
[2]
[3]