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<p>Under vehicle-mounted working conditions, precision equipment is highly susceptible to vibrations induced by road roughness. Therefore, the base must provide effective vibration isolation and damping to prevent damage to precision components. To address this issue, a magnetorheological elastomer (MRE) semi-active vibration absorber for broadband damping is designed according to structural and magnetic circuit requirements. Different from traditional single-parameter design, this design adopts an integrated design approach combining dynamic modeling and magnetic circuit simulation by establishing a two-degree-of-freedom dynamic model under road excitation. It realizes broadband adjustment of the absorber stiffness, which can adapt to broadband road excitations in the range up to 10&#xa0;Hz in vehicle-mounted environments. The damping performance is evaluated through magnetic circuit simulation and experimental tests on a dedicated platform. The results show that, compared with the passive vibration absorber, the proposed MRE vibration absorber reduces the vibration amplitude of the primary system by 81.8% and the vibration acceleration by 82.1%. In addition, this paper discusses the potential of using intelligent control strategies to adjust the absorber performance in real time, indicating its application prospects in vehicles, rail transportation and industrial equipment.</p>

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Experimental study on a vehicle-mounted magnetorheological elastomer vibration absorber based on a two-degree-of-freedom model

  • 期刊论文

  • 发表日期：

    2026年5月23日

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  • Bangbin Han,
  • Weiheng Cheng,
  • Hongli Zhang,
  • Fenghua Huang,
  • Jian Peng,
  • Cheng Huang,
  • Chi Wang

摘要

Under vehicle-mounted working conditions, precision equipment is highly susceptible to vibrations induced by road roughness. Therefore, the base must provide effective vibration isolation and damping to prevent damage to precision components. To address this issue, a magnetorheological elastomer (MRE) semi-active vibration absorber for broadband damping is designed according to structural and magnetic circuit requirements. Different from traditional single-parameter design, this design adopts an integrated design approach combining dynamic modeling and magnetic circuit simulation by establishing a two-degree-of-freedom dynamic model under road excitation. It realizes broadband adjustment of the absorber stiffness, which can adapt to broadband road excitations in the range up to 10 Hz in vehicle-mounted environments. The damping performance is evaluated through magnetic circuit simulation and experimental tests on a dedicated platform. The results show that, compared with the passive vibration absorber, the proposed MRE vibration absorber reduces the vibration amplitude of the primary system by 81.8% and the vibration acceleration by 82.1%. In addition, this paper discusses the potential of using intelligent control strategies to adjust the absorber performance in real time, indicating its application prospects in vehicles, rail transportation and industrial equipment.