Example of Vibration Suppression of Electronic Box Using Dual Function EH/TVA

Abstract

This chapter presents briefly an analytical example of implementing the dual function EH/TVA theory developed in Chaps. 5 and 6 on a more realistic application. The response of an electronic box, vibrating at its resonance frequency, is optimally attenuated with the help of the proposed EH/TVA. The work demonstrates that the proposed energy harvesting TVA combines the merits of classical mechanical and electrical TVAs and reduces their relative shortcomings and, hence, resulting in a new type of more adaptable, compact and agile electromechanical TVAs . In vibration energy harvesting process, transfer of mechanical vibration energy into electrical energy introduces additional damping (i.e. electrical damping) in the system which can be used to tune the electromechanical TVA at its optimum condition. In the example presented, it is shown that optimum degree of vibration suppression of an electronic box is attained by using this dual function TVA through appropriate tuning of the connected electrical circuitry which mimics efficiently the tuning of parameters of the mechanical TVA. MatLab code generating the simulations presented in this chapter is attached in Appendix-A at the end of the book.