Table 1. Experimental conditions of the robot setup.

Frequencies	Angle range*	Number of accelerometers (range in position relative to axis of rotation)
0 Hz	0° and 22.5°	18 (0.13–0.78 m)
0.05 to 0.55 Hz (steps of 0.05)	0–90°	18 (0.13–0.78 m)
0.60, 0.70, and 0.80 Hz	0–45°	18 (0.13–0.78 m)
0.90, 1.00, and 1.10 Hz	0–20°	18 (0.13–0.78 m)
1.20 and 1.30 Hz	0–45°	5 (0.13–0.29 m)
1.4 to 2.6 (steps of 0.1), 2.8, 3.0, 3.2, 3.6 and 4 Hz	0–20°	5 (0.13–0.29 m)

[*for 0° the bar is in horizontal position and for 90° the bar is pointing upwards relative to the axis of rotation].