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Energy Harvesting Using Telescopic Regenerative Suspension System
Naga Sudha Rani Behara and Putti Srinivasa Rao

Energy harvesting (EH), the technology of capturing and converting environmental energy sources, such as load, mechanical vibrations, temperature changes, light energy, wind energy, and so on, into minuscule amounts of electricity within a given voltage range is a relatively recent technological achievement. Energy harvesting is used to power electronic equipment when traditional power sources are unavailable. An energy-harvesting telescopic regenerative suspension system (TRSS) can not only lessen vibration caused by defects in the road, but also gather energy that would otherwise be lost due to suspension vibration. It can function as a regulated damper and an energy generator. This research suggests analysing and testing a telescopic shock absorber construction, which has the advantage of reducing spring vibrations and resisting unnecessary spring motion, in order to boost the effectiveness of energy harvesting. The primary goal of this initiative is to concentrate on vibration analysis and energy harvesting in shock absorbers. Solid works 2.0 was used to design the first telescopic suspension system, which comprises of a spring, rack, and pinion. Ansys Workbench was then used to analyse each component. Following a practical construction of the spring, rack, and pinion on a conventional two-wheel bike with single person and two persons using a rack and pinion mechanism made possible by 3D printing technology, testing was conducted to ascertain the voltage harvesting energy in relation to the distance (measured in kilometres) travelled and compared the results on different types of roads like concrete roads, earthen roads and WBM roads. Finally, the harvested voltage has been raised by using boost converter and stored in rechargeable battery which in turn used to charge mobile phones and earbuds.

Keywords: Mechanical Vibrations, Electric Vehicles, Energy harvesting, telescopic Suspension system, Air pollutants, Electronic devices, WBM Roads