Design and analysis of an X-structured vibration isolation mount (X-Mount) with wider quasi-zero-stiffness rang

Jing Bian, Xingjian Jing

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Increasing demands for high performance of vibration control drives the development of nonlinear vibration control devices to overcome the limitations of traditional linear vibration control methods. A novel and compact X-structured mount (X-mount) with an oblique spring is designed and investigated in this paper which demonstrates beneficial nonlinear stiffness and damping, tunable payload and resonant frequency property, and a special enlarged quasi-zero-stiffness region, which thus lead to excellent vibration isolation performance without instability or other strong nonlinear response such as jump phenomenon. The X-mount is designed, based on a bio-inspired X-shaped structure, and a special oblique spring is introduced which can effectively widen the working quasi-zero-stiffness range by employing negative stiffness due to a special contact stiffness. The oblique spring can also help to reduce the dynamic stiffness achieving an ultra-low natural frequency and broadband effective vibration isolation range. The mathematical modeling, theoretical analysis and experiment results show the high performance of this X-mount, potentially providing a promising solution for vibration control in many engineering practices.

Original languageEnglish
Title of host publicationEURODYN 2020 - 11th International Conference on Structural Dynamics, Proceedings
EditorsManolis Papadrakakis, Michalis Fragiadakis, Costas Papadimitriou
PublisherEuropean Association for Structural Dynamics
Pages4434-4440
Number of pages7
ISBN (Electronic)9786188507210
Publication statusPublished - Nov 2020
Event11th International Conference on Structural Dynamics, EURODYN 2020 - Virtual, Athens, Greece
Duration: 23 Nov 202026 Nov 2020

Publication series

NameProceedings of the International Conference on Structural Dynamic , EURODYN
Volume2
ISSN (Print)2311-9020

Conference

Conference11th International Conference on Structural Dynamics, EURODYN 2020
Country/TerritoryGreece
CityVirtual, Athens
Period23/11/2026/11/20

Keywords

  • Negative stiffness
  • Nonlinear stiffness
  • Passive vibration isolation
  • Quasi-zero-stiffness
  • X-shaped structure

ASJC Scopus subject areas

  • Building and Construction
  • Architecture
  • Civil and Structural Engineering

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