Consideration on flow disturbance suppression and transmissibility reduction for pneumatic anti-vibration apparatuses under a multi-loop control system

Yukinori Nakamura, Yuki Noguchi, Shinji Wakui

Research output: Contribution to journalArticle

Abstract

This paper considers the compensation of flow disturbance, which is the pressure variation of compressed air supplied to pneumatic anti-vibration apparatuses. In the case of single-loop control system, a notch filter is used as the tunable parameter of repetitive controller so as to reduce the transmissibility of pneumatic anti-vibration apparatus. On the other hand, in the case of multi-loop control system, the transmissibility is increased. To overcome this problem, a sky-hook spring approach is employed. It is shown that by using the proposed approach, the vibration caused by flow disturbance is attenuated and the transmissibility of pneumatic anti-vibration apparatuses is improved

Original languageEnglish
Pages (from-to)372-379
Number of pages8
JournalIEEJ Transactions on Electronics, Information and Systems
Volume139
Issue number4
DOIs
Publication statusPublished - Jan 1 2019

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Pneumatics
Control systems
Notch filters
Hooks
Compressed air
Controllers
Compensation and Redress

Keywords

  • Flow disturbance
  • Pneumatic anti-vibration apparatus
  • Transmissibility

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

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N2 - This paper considers the compensation of flow disturbance, which is the pressure variation of compressed air supplied to pneumatic anti-vibration apparatuses. In the case of single-loop control system, a notch filter is used as the tunable parameter of repetitive controller so as to reduce the transmissibility of pneumatic anti-vibration apparatus. On the other hand, in the case of multi-loop control system, the transmissibility is increased. To overcome this problem, a sky-hook spring approach is employed. It is shown that by using the proposed approach, the vibration caused by flow disturbance is attenuated and the transmissibility of pneumatic anti-vibration apparatuses is improved

AB - This paper considers the compensation of flow disturbance, which is the pressure variation of compressed air supplied to pneumatic anti-vibration apparatuses. In the case of single-loop control system, a notch filter is used as the tunable parameter of repetitive controller so as to reduce the transmissibility of pneumatic anti-vibration apparatus. On the other hand, in the case of multi-loop control system, the transmissibility is increased. To overcome this problem, a sky-hook spring approach is employed. It is shown that by using the proposed approach, the vibration caused by flow disturbance is attenuated and the transmissibility of pneumatic anti-vibration apparatuses is improved

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