Figure 1

Vibratory platform positions—(a) X-axis bipodal; (b) Y-axis bipodal; (c) X-axis monopodal right leg; (d) X-axis monopodal left leg.

Vibratory platform positions—(a) X-axis bipodal; (b) Y-axis bipodal; (c) X-axis monopodal right leg; (d) X-axis monopodal left leg.