519471.fig.006a
(a)
519471.fig.006b
(b)
519471.fig.006c
(c)
519471.fig.006d
(d)
Figure 6: Schematic of the torsional vibration measurement instrumentation; (a) strain gage; (b) torsional load application system; (c) strain gauges used during modal tests; (d) schematic of the torsional strain gauges.