A nonlinear vibration isolator achieving high-static-low-dynamic stiffness and tunable anti-resonance frequency band

Xiuting Sun, Xingjian Jing

Research output: Journal article publicationJournal articleAcademic researchpeer-review

70 Citations (Scopus)

Abstract

With the mathematical modeling, the influence incurred by different structural parameters on system isolation performance is studied. It is shown that, (a) nonlinear high-static-low-dynamic stiffness and damping characteristics can be seen such that the system can achieve good isolation performance in both directions, (b) an anti-resonance frequency band exists due to the coupling effect between the linear and nonlinear stiffness in the two orthogonal directions within the structure, and (c) all these performances are designable with several structural parameters. The advantages of the proposed system are shown through comparisons with an existing quasi-zero-stiffness vibration isolator (QZS-VI) and a traditional mass-spring-damper vibration isolator (MSD-VI), and further validated by experimental results.
Original languageEnglish
Pages (from-to)166-188
Number of pages23
JournalMechanical Systems and Signal Processing
Volume80
DOIs
Publication statusPublished - 1 Dec 2016

Keywords

  • Anti-resonance
  • Nonlinear stiffness and damping
  • Structural nonlinearity
  • Vibration isolation

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Signal Processing
  • Civil and Structural Engineering
  • Aerospace Engineering
  • Mechanical Engineering
  • Computer Science Applications

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