Investigation of an energy harvesting MR damper in a vibration control system

Abstract

In this paper the authors investigate the performance of an energy harvesting MR damper (EH-MRD) employed in a semi-active vibration control system (SVCS) and used in a single DOF mechanical structure configuration. Main components of the newly proposed SCVS include the MR damper and an electromagnetic vibration energy harvester based on the Faraday's law (EVEH) that converts vibration energy into electrical energy and delivers electrical power supplying the MR damper. The main objective of the study is to indicate that the SVCS, controlled by the specially designed embedded system, is feasible and presents good performance at the present stage of the research. The work describes investigation the unique features of the EH-MRD, i.e. its self-powering and self-sensing capabilities. Two cases were considered and the testing was done accordingly. In the case 1, only the self-powered capability was investigated. It was found out that harvested energy is sufficient to power the EH-MRD damper and to adjust it to structural vibration. The results confirmed the adequacy of the SVCS and demonstrated a significant reduction of the resonance peak. In the case 2, both the self-powering and self-sensing capabilities were investigated. Due to the self-sensing capability, the SCVS does not require any sensor. It appeared that thus harvested energy is sufficient to power the EH-MRD and enables selfsensing action since the signal of voltage induced by EVEH agrees with the relative velocity signal across the device. Similar to case 1, the resonance peak is significantly reduced.

A Comprehensive Review of the Techniques on Regenerative Shock Absorber Systems

“…A damping force of 700 N can be achieved under 11mm excitation at 1Hz and simultaneously a maximum of 2 V can be harvested. Damping force control algorithm can also be integrated in the MR energy harvesting damper for optimum vibration control [43,46].…”

A novel scissor-type magnetorheological seat suspension system with self-sustainability

“…The control performances about the directly mode and supply-withrectifier mode are shown in Figure 21. In this figure, the on-off balance control algorithm (Liu et al, 2005;Sapin´ski et al, 2016) using the self-sensing signals is also compared to find better control performance. The force controlled by the on-off balance control strategy can be described by equation ( 27).…”

Performance enhancement in cable vibration energy harvesting employing inerters: Full‐scale experiment

“…Harvesting structural vibration energy has attracted great attentions due to its potential for powering some low-power electronic devices, like wireless sensor networks (WSN) [1][2][3][4] or semi-active control devices. [5][6][7][8][9][10] Rather than the high maintenance cost for replacing the traditional battery that is frequently used to power the WSN at present, vibrationbased energy harvesting may be an alternative choice because it is a green and sustainable energy source. However, small-scale energy harvesting devices are not likely to provide large enough energy to power the electric devices like WSN, so large-scale energy harvesting devices of higher output power need to be developed.…”

“…Harvesting structural vibration energy has attracted great attentions due to its potential for powering some low‐power electronic devices, like wireless sensor networks (WSN) 1–4 or semi‐active control devices 5–10 . Rather than the high maintenance cost for replacing the traditional battery that is frequently used to power the WSN at present, vibration‐based energy harvesting may be an alternative choice because it is a green and sustainable energy source.…”