(a)
(b)
(c)
(d)
Figure 7: Time history of forces acting along and directions on guiding support plate pin shafts. (a) Force along direction on left guiding support plate pin shaft, (b) force along direction on left guiding support plate pin shaft, (c) force along direction on the right guiding support plate pin shaft, and (d) force along direction on the right guiding support plate pin shaft.