Investigation of Velocity Sensing in Harvesters for Magnetorheological Dampers

Bogdan Sapiński 1  and Andrzej Matras 2
  • 1 AGH University of Science and Technology, Department of Process Control, 30-059, Cracow, Poland
  • 2 AGH University of Science and Technology, Department of Power Electronics and Energy Control Systems, 30-059, Cracow, Poland


This paper investigates the performance of electromagnetic vibration harvesters that can be incorporated in energy harvesting magnetorheological (MR) dampers. The study outlines the structure and operating principles of harvesters and compares results of numerical calculations with measurement data obtained under idle run. Results demonstrate the potential applications of harvesters as velocity sensors. The relationship between electromotive force (emf) and velocity across the devices is established. The discussion section suggests that power generation by harvesters can provide the velocity information by utilising the sensing function applicable to a variety of control algorithms.

If the inline PDF is not rendering correctly, you can download the PDF file here.

  • 1. Chen C., Liao W.H. (2010), A self-powered, self-sensing magnetorheological damper, Proceedings of IEEE Conference on Mechatronics and Automation, 1364−1369.

  • 2. Chen C., Liao W.H. (2012), A self-sensing magnetorheological damper with power generation, Smart Materials and Structures, 21, 025014.

  • 3. Jung H.J., Jang D.D., Koo J.H., Cho S.W. (2010), Experimental evaluation of a ‘self-Sensing capability of an electromagnetic induction system designed for MR Dampers, Journal of Intelligent Material Systems and Structures, 21, 827−835.

  • 4. Kaleta J. (2013), Magnetic materials SMART: Structure, manufacturing, testing, properties, applications., Oficyna Wydawnicza Politechniki Wrocławskiej.

  • 5. Li Z, Zhuo L, Luhrs G, Lin L., Qin Y.(2013), Electromagnetic energy harvesting shock absorbers: design, modeling and road tests, IEEE Transactions Vehicle Technology, 62, 1065–74.

  • 6. Matras A., Sapiński B., Węgrzynowski M. (2017), Magnetic field and circuit analysis in an electromagnetic transducer supplying a rotary MR dumper, Przegląd Elektrotechniczny, 93, 145-149.

  • 7. Sapiński B. (2008), An experimental electromagnetic induction device for a magnetorheological damper, Journal of Theoretical and Applied Mechanics, 46(4), 933-947.

  • 8. Sapinski B. (2014), Energy harvesting MR linear damper: prototyping and testing, Smart Materials and Structures, 23, 035021.

  • 9. Sapinski B., Rosół M., Węgrzynowski M. (2016), Investigation of an energy harvesting MR damper in a vibration control system, Smart Materials and Structures, 25, 125017.

  • 10. Sapiński B., Węgrzynowski M., Nabielec J. (2018), Magne-trheological damper-based positioning system with power generation, Journal of Intelligent Material Systems and Structures, DOI: 10.1177/1045389x17730928.

  • 11. Wang D.H., Bai X.X., Liao W.H. (2010), An integrated relative displacement self-sensing magnetorheological damper: prototyping and testing, Smart Materials and Structures, 19, 105008.


Journal + Issues