Vibration Characteristics of Roundabout Swing of HAWT Wind Wheel

Figure 13

Determined vibration modes: (a) axial movement, (b) roundabout swing, (c) first-order antisymmetric vibration, (d) first-order symmetric vibration, (e) second-order antisymmetric vibration, and (f) second-order symmetric vibration.

(a)

(b)

(c)

(d)

(e)

(f)