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Performance Improvement of an MR-Damper-Based Vibration-Reduction System with Energy Harvesting at Sprung Mass Changes

Author

Listed:
  • Bogdan Sapiński

    (Department of Process Control, Faculty of Mechanical Engineering and Robotics, AGH University of Krakow, Mickiewicza 30 Av., 30-059 Krakow, Poland)

  • Łukasz Jastrzębski

    (Department of Process Control, Faculty of Mechanical Engineering and Robotics, AGH University of Krakow, Mickiewicza 30 Av., 30-059 Krakow, Poland)

Abstract

The present paper is concerned with a magnetorheological (MR)-damper-based vibration-reduction system with energy harvesting capability considering sprung mass changes. The system represents a mechanical harmonic oscillator with electrical coupling, set in motion by kinematic excitation. The authors examine the system performance in the case when the MR damper control coil (damper control coil) is powered directly by the alternating current resulting from the voltage generated in an electromagnetic harvester in the assumed frequency range of sine excitation. Such a system is able to attenuate vibration in the near-resonance frequency range when the current in the damper control coil increases; however, its drawback is vibration amplification at higher frequencies. To eliminate this negative feature, it is proposed to connect shunt capacitors in parallel with the damper control coil. Then, the system can be tested experimentally in terms of current in the damper control coil, sprung mass, and the capacity of shunt capacitors in order to evaluate system performance according to the assumed performance index. The obtained results demonstrate significant improvement in system performance at higher frequencies of excitation.

Suggested Citation

  • Bogdan Sapiński & Łukasz Jastrzębski, 2024. "Performance Improvement of an MR-Damper-Based Vibration-Reduction System with Energy Harvesting at Sprung Mass Changes," Energies, MDPI, vol. 17(14), pages 1-17, July.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:14:p:3436-:d:1433934
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    References listed on IDEAS

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    1. Bogdan Sapiński & Paweł Orkisz & Łukasz Jastrzębski, 2021. "Experimental Analysis of Power Flows in the Regenerative Vibration Reduction System with a Magnetorheological Damper," Energies, MDPI, vol. 14(4), pages 1-13, February.
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