Vibration suppression in high-speed trains with negative stiffness dampers

Xiang Shi, Songye Zhu, Yi Qing Ni, Jianchun Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)

Abstract

This work proposes and investigates re-centering negative stiffness dampers (NSDs) for vibration suppression in high-speed trains. The merit of the negative stiffness feature is demonstrated by active controllers on a high-speed train. This merit inspires the replacement of active controllers with re-centering NSDs, which are more reliable and robust than active controllers. The proposed damper design consists of a passive magnetic negative stiffness spring and a semi-active positioning shaft for re-centering function. The former produces negative stiffness control forces, and the latter prevents the amplification of quasi-static spring deflection. Numerical investigations verify that the proposed re-centering NSD can improve ride comfort significantly without amplifying spring deflection.

Original languageEnglish
Pages (from-to)653-668
Number of pages16
JournalSmart Structures and Systems
Volume21
Issue number5
DOIs
Publication statusPublished - May 2018

Keywords

  • Active control
  • High-speed train
  • Negative stiffness
  • Re-centering
  • Vibration control

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this