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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국항공우주학회 International Journal of Aeronautical and Space Sciences International Journal of Aeronautical and Space Sciences Volume.15 Number.3
- 발행연도
- 2014.9
- 수록면
- 293 - 301 (9page)
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초록· 키워드
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We present a study of vertical dynamics control of an electrostatically levitated gyro-accelerometer considering the wobbling effect and propose a tilt stabilization method with newly introduced control electrodes. Typically, a rotor in a vacuum rotates at high velocity, which may create a drift rate and lead to displacement instability due to the tilt angle of the rotor. To analyze this, first we set up a vertical dynamic equation and determined simulation results regarding displacement control. After deriving an equation for drift dynamics, we analyzed the drift rate of the rotor and the wobbling effect for displacement control quantitatively. Then, we designed new sub-electrodes for moment control that will decrease the drift amplitude of wobbling dynamics. Finally, a simulation study demonstrated that the vertical displacement control with the wobbling compensation electrodes mitigated the rotor’s drift rate, showing the effectiveness of the newly proposed control electrodes.
목차
Abstract
1. Introduction
2. Basic principle and modeling
3. Analysis of the wobbling dynamics from mass unbalance
4. Wobbling and multi-variable capacitance model
5. Wobbling mitigation design with a moment compensator
6. Simulation of displacement control and analysis results
7. Conclusions
References
참고문헌 (9)
참고문헌 신청
1. [학술대회논문] - Q. J. Xiao / 2009 / Simulation of Levitation Control for a Micromachined Electrostatically Levitated Gyroscope / IEEE-NEMS 2009 : 160 ~ 163
2. [학술지(정기간행물)] - L. Yan-zhu / 2004 / Drift Motion of Free-Rotor Gyroscope with Radial Mass-Unbalance / Applied Mathematics and Mechanics 25 : 786 ~ 791
3. [학술지(정기간행물)] - R. Houlihan / 2002 / Modelling of an accelerometer based on a levitated proof mass / Journal of Micromechanics and Microengineering 12 : 1 ~ 8
4. [학술지(정기간행물)] - F. Han / 2009 / Modeling and Analysis of a Micromotor with an Electrostatically Levitated Rotor / Chinese Journal of Mechanical Engineering 22 (1)
5. [학술지(정기간행물)] - T. Murakoshi / 2003 / Electrostatically Levitated Ring-Shaped Rotational-Gyro/Accelerometer / Japanese Journal of Applied Physics 42 : 2468 ~ 2472
2. [학술지(정기간행물)] - L. Yan-zhu / 2004 / Drift Motion of Free-Rotor Gyroscope with Radial Mass-Unbalance / Applied Mathematics and Mechanics 25 : 786 ~ 791
3. [학술지(정기간행물)] - R. Houlihan / 2002 / Modelling of an accelerometer based on a levitated proof mass / Journal of Micromechanics and Microengineering 12 : 1 ~ 8
4. [학술지(정기간행물)] - F. Han / 2009 / Modeling and Analysis of a Micromotor with an Electrostatically Levitated Rotor / Chinese Journal of Mechanical Engineering 22 (1)
5. [학술지(정기간행물)] - T. Murakoshi / 2003 / Electrostatically Levitated Ring-Shaped Rotational-Gyro/Accelerometer / Japanese Journal of Applied Physics 42 : 2468 ~ 2472
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