| Summary: | Nowadays, renewable energy becomes important due to the increased energy demand and recent limitation of batteries. The technique of vibration energy harvesting has been seen as a promising way to allow self-sufficient wireless sensors and other low-power consumption devices. This is due to the presence of vibration energy in many environments and engineering systems. This research aims to investigate the characteristic of vibration energy harvesting. A single degree of freedom (SDOF) subject to a harmonic base excitation is considered as a harvester. This paper investigates analytically the performance of average power in vibration energy harvester. Results show that higher amplitude will decrease the frequency and increase power density for average power harvested. Furthermore, the amplitude can be higher and give more power density for average power harvesting when the resonance frequency occurs where the applied frequency is equal or closed to the natural frequency. In addition, it is possible to increase the amplitude and power average by tune the parameter of the energy harvester by changing the mass, stiffness, and damping ratio. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
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