In this contribution, the finite element simulation model of a 35 kV three-core optical fiber composite submarine cable with a suspended span length of 9. The natural frequency of the model is obtained through modal analysis. Stretching can occur either as a result of temperature changes of the spool on which the fiber is wound, or as a result of axial vibrations. The vortex-induced vibrations (VIVs) of curved cable-stayed bridges differ from those of straight bridges due to two key factors. First, the superelevation introduces deck asymmetry and alters the effective angle of attack, leading to mechanisms responsible for VIVs that remain unclear. Second. IEEE PHOTONICS TECHNOLOGY vol. Voltage Abstract—Vibration causes mechanical distortions in optical fibers that induce phase. Vibration analysis is one of the proven methods in fault detection in a variety of dynamic components. However, lack of experimental data on actual machinery in comparison to test bench devices, has made it difficult for a reliable fault detection and lifetime assess-ment.