Nonlinear Dynamic Analysis of High-Voltage Overhead Transmission Lines

Figure 4

Modes of vibration of the transmission line of the first nine orders obtained from FE simulation.

(a) First order, 0.136 Hz

(b) Second order, 0.27 Hz

(c) Third order, 0.272 Hz

(d) Fourth order, 0.346 Hz

(e) Fifth order, 0.408 Hz

(f) Sixth order, 0.46 Hz

(g) Seventh order, 0.544 Hz

(h) Eighth order, 0.544 Hz

(i) Ninth order, 0.68 Hz