A Study on the Development of a Hybrid Electromagnetic Actuator Against Microvibration

문석준,; 박수홍,; 정종안,; 허영철,; 김철호,; 최상민,

doi:10.5050/ksnve.2011.21.5.475

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…The motion range is limited between the gaps of the stators. Figure 2 shows the design concept found in an article by Kazuhide [10] and also proposed by Moon [11].…”

Section: Structures Without Permanent Magnetsmentioning

confidence: 99%

A Hybrid Structure of Dual Stators and a Pneumatic Spring for Resonance Control in an Air Mount

Kim¹,

Kim²,

Kang³

et al. 2013

JEMAA

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An active device using electromagnetic forces was constructed and examined for the purpose of minimizing the resonance in air mounts of clean rooms. The air mounts are vulnerable to low-frequency resonance due to heavy weight and low stiffness. A hybrid structure of the active device, composed of pneumatic and electromagnetic parts, was developed and tested. The pneumatic parts in the device support heavy weights under the air mounts, and the electromagnetic parts reduce the resonance. The electromagnetic parts are composed of dual stators and an armature, which surround the pneumatic parts. The resonance can decrease when electromagnetic forces are generated in the gaps between the stators and the armature. Four active devices were installed under a 3-ton surface plate for a vibration test apparatus. The vibration was detected by eddy-current sensors. Discrete P Control logic was based on displacement, and embedded in a C6713 DSP. The results from impact tests show that the peak magnitude in the resonance frequency can be reduced to ?10 dB.

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“…The motion range is limited between the gaps of the stators. Figure 2 shows the design concept found in an article by Kazuhide [10] and also proposed by Moon [11].…”

Section: Structures Without Permanent Magnetsmentioning

confidence: 99%

A Hybrid Structure of Dual Stators and a Pneumatic Spring for Resonance Control in an Air Mount

Kim¹,

Kim²,

Kang³

et al. 2013

JEMAA

View full text Add to dashboard Cite

show abstract

“…, 공압 구동부 (6) , 전자기식 구동부 (7) 등의 추 가 구동력을 활용하여 능동제어이론을 적용한 공압 제진대 개발·적용에 대한 연구가 진행되고 있으며, 비선형 제어기법에 대한 적용 방법에 대해서도 연구 되고 있다 (8,9) . (Fig.…”

Section: 서 론unclassified

Examination on Active Pneumatic Vibration Isolation Table with Moving Masses on It by Time Delay Control

Shin¹,

Moon²,

Chung³

et al. 2011

Transactions of the Korean Society for Noise and Vibration Engi

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As applying an active control technique to a pneumatic vibration isolation system, the settling time for the payload excitation could be remarkably reduced as well as the improvement of isolation performance for the ground vibration. Some previous researches were dealt with the settling time through the simulation or experiment but, the discussion on the simulation or experimental results including moving parts, such as a XY-stage, on the isolation table rarely exists. As considering the moving part, the dynamic model could be time varying system and in such a case the force imposed on pneumatic vibration isolation table could be described by inertial forces of moving parts according to Newton's 3rd law, the action and reaction law. In this paper, the simulation procedure of the 3-DOF active pneumatic vibration isolation system including moving parts by TDC(time delay control) technique is proposed and the effectiveness through simulation results are also shown.

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A new mount with moving-magnet type electromagnetic actuator for naval shipboard equipment

Shin

Moon

Kwon

et al. 2015

International Journal of Naval Architecture and Ocean Engineeri

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A Study on the Development of a Hybrid Electromagnetic Actuator Against Microvibration

Cited by 5 publications

References 8 publications

A Hybrid Structure of Dual Stators and a Pneumatic Spring for Resonance Control in an Air Mount

A Hybrid Structure of Dual Stators and a Pneumatic Spring for Resonance Control in an Air Mount

Examination on Active Pneumatic Vibration Isolation Table with Moving Masses on It by Time Delay Control

A new mount with moving-magnet type electromagnetic actuator for naval shipboard equipment

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