Study on Dynamic Stability of Repulsive Magnetic Levitation System (2nd Report, Vibration Control Effect of Active Secondary Suspension)

Masao Nagai, Antonio Moran, Shigeyuki Nakadai

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

For high speed magnetically levitated (MAGLEV) vehicle systems significant attention must be given to the secondary suspension as it determines the ride comfort and has great influence on the vehicle stabilty. This paper analyzes theoretically and experimentally the performance of an active secondary suspension on the ride quality and running stability of repulsive MAGLEV vehicles. The suspension is equipped with a microcomputer controlled pneumatic actuator and it is governed by an optimal control approach. Two measures of performance have been analyzed: car body vertical acceleration (ride comfort) and truck-guideway gap variations (running stability). The experimental results show the performance improvement obtainable with an active secondary suspension and sufficiently agree with the theoretical simulation.

Original languageEnglish
Pages (from-to)1018-1023
Number of pages6
JournalTransactions of the Japan Society of Mechanical Engineers Series C
Volume58
Issue number548
DOIs
StatePublished - 1992

Keywords

  • Active Control Technology
  • Active Suspension
  • Magnetic Levitation
  • Optimal Control
  • Pneumatic Actuator
  • Ride Quality
  • Vibration Control

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