Smart Structures and Systems

  • 제25권3호
  • /
  • Pages.279-284
  • /
  • 2020
  • /
  • 1738-1584(pISSN)
  • /
  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Study on magnetorheological damper stiffness shift

  • Jafarkarimi, Mohammad H. (Department of Mechanical Engineering, Tarbiat Modares University) ;
  • Ghorbanirezaei, Shahryar (Department of Mechanical Engineering, Tarbiat Modares University) ;
  • Hojjat, Yousef (Department of Mechanical Engineering, Tarbiat Modares University) ;
  • Sabermand, Vahid (Department of Mechanical Engineering, Tarbiat Modares University)
  • 투고 : 2018.11.05
  • 심사 : 2020.02.17
  • 발행 : 2020.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

Electrical current is usually used to change the damping force of Magnetorheological Dampers (MRDs). However, changing the electrical current could shift the stiffness of the system, the phenomenon that was not considered carefully. This study aims to evaluate this shift. A typical MRD was designed, optimized, and fabricated to do some accurate and detailed experimental tests to examine the stiffness variation. The damper is equipped with a circulating system to prevent the deposition of particles when it is at rest. Besides that, a vibration setup was developed for the experimental study. It is capable of generating vibration with either constant frequency or frequency sweep and measure the amplitude of vibration. The damper was tested by the vibrating setup, and it was concluded that with a change in electrical current from 0 to 1.4 A, resonant frequency would change from 13.8 Hz to 16 Hz. Considering the unchanging mass of 85.1 kg, the change in resonant frequency translates as a shift in stiffness, which changes from 640 kN/m to 860 kN/m.

키워드

참고문헌

  1. Askari, M., Li, J. and Samali, B. (2016), "Semi-active control of smart building-MR damper systems using novel TSK-Inv and max-min algorithms", Smart Struct. Syst., Int. J., 18(5), 1005-1028. https://doi.org/10.12989/sss.2016.18.5.1005
  2. Behrooz, M., Wang, X. and Gordaninejad, F. (2014), "Modeling of a new semi-active/passive magnetorheological elastomer isolator", Smart Mater. Struct., 23(4), 045013. https://doi.org/10.1088/0964-1726/23/4/045013
  3. Deng, H.X., Gong, X.L. and Wang, L.H. (2006), "Development of an adaptive tuned vibration absorber with magnetorheological elastomer", Smart Mater. Struct., 15(5), 111-116. https://doi.org/10.1088/0964-1726/15/5/N02
  4. Jugulkar, L.M., Singh, S. and Sawant, S.M. (2016), "Analysis of suspension with variable stiffness and variable damping force for automotive applications", Adv. Mech. Eng., 8(5), 1-19. https://doi.org/10.1177%2F1687814016648638
  5. Li, W., Wang, X.Y., Zhang, X.Z. and Zhou, Y. (2009), "Development and analysis of a variable stiffness damper using an MR bladder", Smart Mater. Struct., 18(7), 074007. https://doi.org/10.1088/0964-1726/18/7/074007
  6. Liu, Y., Matsuhisa, H., Utsuno, H. and Park, J.G. (2006), "Vibration control by a variable damping and stiffness system with magnetorheological dampers", JSME Int. J. Series C Mech. Syst. Mach. Eleme. Manuf., 49(2), 411-417. https://doi.org/10.1299/jsmec.49.411
  7. Maddah, A.A., Hojjat, Y., Karafi, M.R. and Ashory, M.R. (2017), "Reduction of magneto rheological damper stiffness by incorporating of an eddy current damper", J. Sound Vib., 396, 51-68. https://doi.org/10.1016/j.jsv.2017.02.011
  8. Sun, C., Nagarajaiah, S. and Dick, A.J. (2014a), "Family of smart tuned mass dampers with 2 variable frequency under harmonic excitations and ground motions: Closed-form evaluation", Smart Struct. Syst., Int. J., 13(2), 319-341. https://doi.org/10.12989/sss.2014.13.2.319
  9. Sun, S., Deng, H. and Li, W. (2014b), "A variable stiffness and damping suspension system for trains", Proceedings of SPIE: Active and Passive Smart Structures and Integrated Systems, 9057, 1-9. https://doi.org/10.1117/12.2045023
  10. Sun, S., Yang, J., Li, W., Deng, H., Du, H. and Alici, G. (2015), "Development of a novel variable stiffness and damping magnetorheological fluid damper", Smart Mater. Struct., 24(8), 085021-1-085021-10. https://doi.org/10.1088/0964-1726/24/8/085021
  11. Sun, S., Tang, X., Li, W. and Du, H. (2017), "Advanced vehicle suspension with variable stiffness and damping MR damper", Proceedings of 2017 IEEE International Conference on Mechatronics (ICM), Churchill, Australia. https://doi.org/10.1109/ICMECH.2017.7921148
  12. Wang, X., Pereira, E., Diaz, I.M. and Garcia-Palacios, J.H. (2018), "Velocity feedback for controlling vertical vibrations of pedestrian-bridge crossing. Practical guidelines", Smart Struct. Syst., Int. J., 22(1), 95-103. https://doi.org/10.12989/sss.2018.22.1.095
  13. Weber, F., Boston, C. and Maslanka, M. (2010), "An adaptive tuned mass damper based on the emulation of positive and negative stiffness with an MRD", Smart Mater. Struct., 20, 015012. https://doi.org/10.1088/0964-1726/20/1/015012
  14. Zhu, X., Deng, L., Sun, S., Yan, T., Yu, J., Ma, Z. and Li, W. (2019), "Development of a variable stiffness magnetorheological damper with self-powered generation capability", J. Intel. Mater. Syst. Struct., 31(2), 209-219. https://doi.org/10.1177/1045389x19862640