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A novel negative stiffness magnetic spring design for vehicle seat suspension system

Journal Article


Abstract


  • © 2020 By employing a couple of columnar magnets with a specific arrangement, a negative stiffness magnetic spring (NSMS) is designed, modelled and then experimentally validated in this paper. Such a magnetic spring with negative stiffness can be used for a semi-active seat suspension to achieve vibration reduction on vehicle drivers. Extensive simulation analysis and experimental validation based on static and vibration responses reveal that NSMS brings the beneficial low dynamics stiffness for seat suspension and reduces the resonance frequency vibration during the vertical excitation without compromising loading capacity. Besides, a semi-active seat suspension system with the NSMS can achieve excellent performance of low-frequency vibration suppression (around 28.8 % acceleration reduction under random excitation).

Authors


  •   Tu, Lixin (external author)
  •   Ning, Donghong
  •   Sun, Shuai
  •   Li, Wenxing (external author)
  •   Huang, Hua (external author)
  •   Dong, Mingming (external author)
  •   Du, Haiping

Publication Date


  • 2020

Citation


  • L. Tu, D. Ning, S. Sun, W. Li, H. Huang, M. Dong & H. Du, "A novel negative stiffness magnetic spring design for vehicle seat suspension system," Mechatronics, vol. 68, 2020.

Scopus Eid


  • 2-s2.0-85084674750

Volume


  • 68

Place Of Publication


  • United Kingdom

Abstract


  • © 2020 By employing a couple of columnar magnets with a specific arrangement, a negative stiffness magnetic spring (NSMS) is designed, modelled and then experimentally validated in this paper. Such a magnetic spring with negative stiffness can be used for a semi-active seat suspension to achieve vibration reduction on vehicle drivers. Extensive simulation analysis and experimental validation based on static and vibration responses reveal that NSMS brings the beneficial low dynamics stiffness for seat suspension and reduces the resonance frequency vibration during the vertical excitation without compromising loading capacity. Besides, a semi-active seat suspension system with the NSMS can achieve excellent performance of low-frequency vibration suppression (around 28.8 % acceleration reduction under random excitation).

Authors


  •   Tu, Lixin (external author)
  •   Ning, Donghong
  •   Sun, Shuai
  •   Li, Wenxing (external author)
  •   Huang, Hua (external author)
  •   Dong, Mingming (external author)
  •   Du, Haiping

Publication Date


  • 2020

Citation


  • L. Tu, D. Ning, S. Sun, W. Li, H. Huang, M. Dong & H. Du, "A novel negative stiffness magnetic spring design for vehicle seat suspension system," Mechatronics, vol. 68, 2020.

Scopus Eid


  • 2-s2.0-85084674750

Volume


  • 68

Place Of Publication


  • United Kingdom