Vibration Transmission Analysis in FGM Beams with Periodically Arranged Enhanced Multiple Dynamic Vibration Absorbers

Wenjie Guo, Xian Hong, Wenjun Luo, Pengfei Zhang, Jian Yang, Jianwei Yan

Research output: Journal PublicationArticlepeer-review

2 Citations (Scopus)


Functionally graded material (FGM) beams are widely used in engineering as moving components. Nevertheless, their generated vibrations usually become annoying. To realize multi-broadband vibration reduction of FGM beams, an enhanced multiple dynamic vibration absorber (EMDVA), which utilizes an amplification mechanism, is proposed in this study. The devices are periodically arranged on the FGM beams. The dispersion and vibration transmission characteristics of the structure are investigated using the energy method and nullspace technique. The accuracy of the model is verified using the finite element method. The effects of parameter on its vibration damping performance are also analyzed. Finally, the relationship between the amplification coefficient and the operating performance of the EMDVA is revealed in terms of both the impedance principle and the energy method. The results show that the amplification mechanism can amplify the stiffness, damping, and mass of the MDVA by a factor of square of the amplification coefficient. Therefore, the proposed EMDVA has a wider damping band and stronger attenuation performance compared to the conventional MDVA. This study provides a simple and easy-to-implement solution for multi-band vibration reduction in FGM beams, which is useful for the engineering application of FGM beams in vibration and noise reduction.

Original languageEnglish
Article number2350135
JournalInternational Journal of Structural Stability and Dynamics
Issue number12
Publication statusPublished - 30 Jul 2023


  • Functionally graded material
  • amplitude magnification
  • bandgap
  • multiple dynamic vibration absorber
  • nullspace technique

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Aerospace Engineering
  • Ocean Engineering
  • Mechanical Engineering
  • Applied Mathematics


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