Identification of unbalance and sensor runout on rigid rotor supported by magnetic bearings (2nd report, identification method and experiment by the weighted-incremental least square on-line method)

Tea Jin Park, Yoichi Kanemitsu, Shinya Kijimoto, Koichi Matsuda

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this paper, we have conducted identification experiments on the mass unbalance and high order sensor runout in a turbo molecular pump supported by active magnetic bearings (AMB), by using the proposed identification method. Firstly, output signals from the displacement sensors are converted and stored in the real time Linux. The mass unbalance and high-order sensor runout are identified using the weighted-incremental least square on-line method from the stored displacement data. Next, by attaching known plural weights on the rotor, the resulting unbalance and higher-order sensor runout were identified using the proposed method. Finally, the reproducibility of the identification experiment and the effectiveness and accuracy of the proposed identification method were verified by an already-known higher-order signal, which synchronizes with the rotor and corresponds to the sensor runout, is added to the rotor and estimate the added high order input signal.

Original languageEnglish
Pages (from-to)656-663
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume70
Issue number3
Publication statusPublished - Mar 2004

Fingerprint

Rigid rotors
Magnetic bearings
Sensors
Rotors
Experiments
Pumps

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

@article{1824b04b2ad444ed869cae2f0e3c2148,
title = "Identification of unbalance and sensor runout on rigid rotor supported by magnetic bearings (2nd report, identification method and experiment by the weighted-incremental least square on-line method)",
abstract = "In this paper, we have conducted identification experiments on the mass unbalance and high order sensor runout in a turbo molecular pump supported by active magnetic bearings (AMB), by using the proposed identification method. Firstly, output signals from the displacement sensors are converted and stored in the real time Linux. The mass unbalance and high-order sensor runout are identified using the weighted-incremental least square on-line method from the stored displacement data. Next, by attaching known plural weights on the rotor, the resulting unbalance and higher-order sensor runout were identified using the proposed method. Finally, the reproducibility of the identification experiment and the effectiveness and accuracy of the proposed identification method were verified by an already-known higher-order signal, which synchronizes with the rotor and corresponds to the sensor runout, is added to the rotor and estimate the added high order input signal.",
author = "Park, {Tea Jin} and Yoichi Kanemitsu and Shinya Kijimoto and Koichi Matsuda",
year = "2004",
month = "3",
language = "English",
volume = "70",
pages = "656--663",
journal = "Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C",
issn = "0387-5024",
publisher = "The Japan Society of Mechanical Engineers",
number = "3",

}

TY - JOUR

T1 - Identification of unbalance and sensor runout on rigid rotor supported by magnetic bearings (2nd report, identification method and experiment by the weighted-incremental least square on-line method)

AU - Park, Tea Jin

AU - Kanemitsu, Yoichi

AU - Kijimoto, Shinya

AU - Matsuda, Koichi

PY - 2004/3

Y1 - 2004/3

N2 - In this paper, we have conducted identification experiments on the mass unbalance and high order sensor runout in a turbo molecular pump supported by active magnetic bearings (AMB), by using the proposed identification method. Firstly, output signals from the displacement sensors are converted and stored in the real time Linux. The mass unbalance and high-order sensor runout are identified using the weighted-incremental least square on-line method from the stored displacement data. Next, by attaching known plural weights on the rotor, the resulting unbalance and higher-order sensor runout were identified using the proposed method. Finally, the reproducibility of the identification experiment and the effectiveness and accuracy of the proposed identification method were verified by an already-known higher-order signal, which synchronizes with the rotor and corresponds to the sensor runout, is added to the rotor and estimate the added high order input signal.

AB - In this paper, we have conducted identification experiments on the mass unbalance and high order sensor runout in a turbo molecular pump supported by active magnetic bearings (AMB), by using the proposed identification method. Firstly, output signals from the displacement sensors are converted and stored in the real time Linux. The mass unbalance and high-order sensor runout are identified using the weighted-incremental least square on-line method from the stored displacement data. Next, by attaching known plural weights on the rotor, the resulting unbalance and higher-order sensor runout were identified using the proposed method. Finally, the reproducibility of the identification experiment and the effectiveness and accuracy of the proposed identification method were verified by an already-known higher-order signal, which synchronizes with the rotor and corresponds to the sensor runout, is added to the rotor and estimate the added high order input signal.

UR - http://www.scopus.com/inward/record.url?scp=2942589185&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2942589185&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:2942589185

VL - 70

SP - 656

EP - 663

JO - Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

JF - Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

SN - 0387-5024

IS - 3

ER -