Static Mechanical Properties and Modal Analysis of a Kind of Lift-Drag Combined-Type Vertical Axis Wind Turbine

Figure 18

The first six-order mode vibration profile of tower.

(a) First-order mode vibration profile

(b) Second-order mode vibration profile

(c) Third-order mode vibration profile

(d) Fourth-order mode vibration profile

(e) Fifth-order mode vibration profile

(f) Sixth-order mode vibration profile