4. Summary of forth chapter

To follow the mentioned goals in Introduction Section, Chapter 4, Chiemela, Onunka and Evans Eshiemogie, Ojo develop and implement a wind-induced high voltage transmission line vibration using finite element method (FEM) in MATLAB to investigate wind-induced vibration. The chapter has focused toward the development of a finite element method and its implementation on the MATLAB software. The developed finite element method (FEM) has been done based on the concept of the simply supported beam model and it has been used in modeling the transverse vibration of power line conductors [12]. First, the FEM model has been used to develop the equation of motion of the power line conductor. In addition, dampers, conditions for damping, and free- and forced vibrations of the overhead conductor have been considered in the FEM model [13]. Wind-induced experiments have been conducted in the laboratory using an actual overhead power conductor. The developed models have been simulated in the MATLAB computing environment. The results from the MATLAB simulation, finite element, and experimental recordings have been compared in order to determine the accuracy of the models and evaluate the efficacy of models simulated in MATLAB and developed using the FEM. Finally, the developed FEM has been used as the means to verify the effect of varying the conductor axial tension on the natural frequencies of the conductors.
