가변속 제어모멘트자이로 테스트 플랫폼 개발
Development of a Test Platform for Variable Speed Control Moment Gyroscopes
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참고문헌
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초록
The author introduces a test platform system that has been developed for variable-speed controlmoment gyroscopes(VCMGs). VCMGs are important actuators for spacecraft attitude control. The testplatform consists of two VCMGs driven by servo motors and sensor modules. The control program hasbeen coded by the NI LabVIEW. Accelerometers and gyros have been used to measure the attitude angleand angular speed of the platform. The 2nd order low pass filters have effectively filtered out noisesfrom measurements. Wheel speeds and gimbal angles have been controlled satisfactory by PI control. Through some tests, moment generation has been verified. The moment has been generated ascommanded. However, friction effect by a ball bearing, that supports the platform’s rotation, has beennot negligible. As further studies, friction reduction will be studied. In conclusion, this test platform willbe used for engineering education and research.
Abstract
The author introduces a test platform system that has been developed for variable-speed controlmoment gyroscopes(VCMGs). VCMGs are important actuators for spacecraft attitude control. The testplatform consists of two VCMGs driven by servo motors and sensor modules. The control program hasbeen coded by the NI LabVIEW. Accelerometers and gyros have been used to measure the attitude angleand angular speed of the platform. The 2nd order low pass filters have effectively filtered out noisesfrom measurements. Wheel speeds and gimbal angles have been controlled satisfactory by PI control. Through some tests, moment generation has been verified. The moment has been generated ascommanded. However, friction effect by a ball bearing, that supports the platform’s rotation, has beennot negligible. As further studies, friction reduction will be studied. In conclusion, this test platform willbe used for engineering education and research.
참고문헌 (6)
- Yoon, H., "Spacecraft adap tive attitude and power tracking with variable speed CMG", Journal of Guidance, Control, and Dynamics, 25(6), pp.1081~1090 (2002)
- Richie, D., "Practical steering law for small satellite energy storage and attitude control", Journal of Guidance, Control, and Dynamics, 32(6), pp.1898~1911 (2009)
- Takada, K., "Control moment gyro singularity avidance steering control based on singular surface cost function", Journal Guidance, Control, and Dynamics, 33(5), pp.1442~1450 (2010)
- 김광석, "차량동역학 시뮬레이션을 위한 가상노면 설계에 관한 연구", 한국기계기술학회지, 11(4), pp.7~13 (2009), 한국기계기술학회
- 나희승, "KAUSatSIM을 이용한 한누리 2호 자세제어 알고리즘 검증", 한국항공우주학회지, 36(5), pp.514~523 (2008), 한국항공우주학회
- Oh, S., "Optimal design for cross-section shape of composite material pipe", Journal of Korean Society for Mechanical Technology, 9(2), pp.1~7 (2007)