The transmissibility of vibration isolators with a nonlinear antisymmetric damping characteristic

Z. K. Peng, Z. Q. Lang, Xingjian Jing, S. A. Billings, G. R. Tomlinson, L. Z. Guo

Research output: Journal article publicationJournal articleAcademic researchpeer-review

25 Citations (Scopus)


In the present study, the concept of the output frequency response function, recently proposed by the authors, is applied to theoretically investigate the force transmissibility of single degree of freedom (SDOF) passive vibration isolators with a nonlinear antisymmetric damping characteristic. The results reveal that a nonlinearantisymmetric damping characteristic has almost no effect on the transmissibility of SDOF vibration isolators over the ranges of frequencies, which are much lower or higher than the isolator's resonance frequency. On the other hand, the introduction of a nonlinear antisymmetric damping can significantly reduce the transmissibility of the vibration isolator over the resonance frequency region. The results indicate that nonlinear vibration isolatorsisolators with an antisymmetric damping characteristic have great potential to overcome the dilemma encountered in the design of passive linear vibration isolators, that is, increasing the level of damping to reduce the transmissibility at the resonance could increase the transmissibility over the range of higher frequencies. These important theoretical conclusions are then verified by simulation studies.
Original languageEnglish
Pages (from-to)0145011-0145017
JournalJournal of Vibration and Acoustics, Transactions of the ASME
Issue number1
Publication statusPublished - 1 Feb 2010
Externally publishedYes

ASJC Scopus subject areas

  • Acoustics and Ultrasonics
  • Mechanical Engineering
  • Mechanics of Materials

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