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Volume 41 Issue 3
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Journal of Beijing University of Aeronautics and Astronautics  > 2015  >  41(3): 485-491.
WANG Jianmin, WU Yunjie, LIU Youmin, et al. Resonance suppression method based on digital filter for servo system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(3): 485-491. doi: 10.13700/j.bh.1001-5965.2014.0218(in Chinese)
Citation: WANG Jianmin, WU Yunjie, LIU Youmin, et al. Resonance suppression method based on digital filter for servo system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(3): 485-491. doi: 10.13700/j.bh.1001-5965.2014.0218(in Chinese)
shu

Resonance suppression method based on digital filter for servo system

doi: 10.13700/j.bh.1001-5965.2014.0218
  • 1.

    School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • 2. Science and Technology on Aircraft Control Laboratory, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • 3. Beijing Institute of Space Launch Technology, Beijing 100076, China

  • 4. National Defense Science and Technology Key Laboratory of Missile, Beijing Simulation Center, Beijing 100854, China

  • Received Date: 21 Apr 2014
  • Publish Date: 20 Mar 2015
    Abstract
  • According to mechanical resonance problem in flight simulation servo system (turntable system), the principles of resonance suppression about traditional notch filter and second-order low-pass filter were analyzed. Afterwards the two-second resonance suppression digital filter was proposed. The two-second digital filter combines the characteristics of traditional notch filter and second-order low-pass filter, and it can suppress the resonance point and the anti-resonance point at the same time. Through theoretical analysis and simulation combination, the principle of the two-second digital filter restraining the resonance point and the anti-resonance point simultaneously was explained. The experiments were also conducted, in which above all filters were joined into the turntable system respectively. Experimental results show that, the proposed filter ensures high tracking precision meanwhile effectively widens the bandwidth of the servo system.

     

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