The invention relates to the technical field of microgravity testing, and discloses a microgravity simulation device and method based on electromagnetic ejection. The microgravity simulation device comprises a falling cabin, a guide rail, a tray, a linear motor, and a control module. The guide rail is used for restraining movement of the tray and providing a mounting position for the linear motor;the tray is used for providing supporting force for the falling bin to make the falling bin accelerated during catapulting and decelerated during recycling; the linear motor is used for generating electromagnetic force, pushing the tray to drive the falling bin to accelerate in the electromagnetic ejection stage, pushing the falling bin and the tray to move together, and only pushing the tray tomove in the drag-free control stage; and the falling bin provides a vacuum environment for the to-be-tested instrument and shields magnetic field interference introduced by a permanent magnet and thelinear motor on the tray. By adopting an electromagnetic ejection mode, the influence of vacuum degree weakening caused by a pneumatic device can be avoided; meanwhile, the effective time of a singlemicrogravity test can be doubled; and the linear motor is adopted to control the recovery stage, and impact damage during falling can be avoided.

    本发明涉及微重力测试技术领域,公开了一种基于电磁弹射的微重力模拟装置及方法,微重力模拟装置包括:落仓,导轨,托盘,直线电机和控制模块;导轨用于约束托盘的运动并为直线电机提供安装位置;托盘用于为落仓提供支持力以实现落仓在弹射时加速和回收时减速;直线电机用于产生电磁力并在电磁弹射阶段推动托盘带动落仓加速,并推动落仓和托盘一同运动,在无拖曳控制阶段只推动所述托盘运动;落仓为待测仪器提供真空环境,并屏蔽托盘上永磁体和直线电机引入的磁场干扰。本发明采用电磁弹射的方式可以避免气动装置造成的真空度减弱的影响;同时还能够使单次微重力试验的有效时间翻倍;采用直线电机控制回收阶段可避免下落时的冲击损坏。


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    Title :

    Microgravity simulation device and method based on electromagnetic ejection


    Additional title:

    一种基于电磁弹射的微重力模拟装置及方法


    Contributors:
    LI HONGYIN (author) / XIAO CHUNYU (author) / ZHOU ZEBING (author) / WU SHUCHAO (author)

    Publication date :

    2020-07-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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