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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2021, Vol. 42 ›› Issue (1): 523911-523911.doi: 10.7527/S1000-6893.2020.23911

• Review • Previous Articles     Next Articles

Suspended micro-low gravity environment simulation technology: Status quo and prospect

GAO Haibo, NIU Fuliang, LIU Zhen, YU Haitao, LI Nan   

  1. State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, Harbin 150001, China
  • Received:2020-02-28 Revised:2020-04-11 Published:2020-07-10
  • Supported by:
    "111" Project (B07018);Project supported by the Foundation for Innovative Research Groups of the National Natural Science Foundation of China(51521003);National Natural Science Foundation of China(51975140)

Abstract: The micro-low gravity environment in aerospace causes different forced states and dynamic performance of the spacecraft and astronauts from those in the ground gravity environment; therefore, it is necessary to simulate this environment on the ground. Several commonly used micro-low gravity simulation methods are reviewed. Among them, the suspension method is widely used because of its advantages of long simulation time, large simulation range, and having no additional inertia. From the perspective of the system scheme principle, the research results of existing suspended micro-low gravity simulation systems at home and abroad are classified and reviewed. According to the requirements of micro-low gravity simulation, two design criteria and three key technologies of the suspension micro-low gravity simulation system are summarized. The research status of these three key technologies is reviewed in detail. The development trends of the system design and three key technologies of the future suspended micro-low gravity simulation are discussed.

Key words: suspension devices, micro-low gravity simulation, constant-force systems, constant-force mechanisms, two-dimensional tracking systems, position measurement

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