Vibration Simulation of High Voltage Cables Laid on the Stress Absorption Mechanical Device Composed of Three Arcs in the Bridge Offset

Considering the mismatch of the intrinsic vibration frequency between the cable and the mechanical device laid in the bridge offset, the vibration mode of the high-voltage (HV) cable and the mechanical device laid in the bridge offset is vital for the condition monitoring of the power transmission systems on the bridge. However, the vibration characteristic of the cable laid in the bridge offset has not been studied by simulation. In this paper, a model considering the electromagnetic force has been established. The results show that the displacement and stress reach their maximum values at the junction between the cable and the mechanical device. The maximum displacement is observed at the right of the junction, measuring 30 μm, while the maximum stress is observed at the left end of the junction, measuring 90 kPa. Besides, the vibration of the mechanical device is trend to move to low frequency.