用于航天器微振动试验的高静刚度–低动刚度隔振器研究进展

Isolators with high static stiffness and low dynamic stiffness for spacecraft micro-vibration experiments

  • 摘要: 随着高精度航天器有效载荷的发展,对隔振的要求越来越高。在航天器地面微振动试验中测试微振动时,要求在支撑航天器重力的情况下,模拟航天器在轨自由状态,并隔离来自地面的低频振动。为此,可以引入具有高静刚度–低动刚度特性的隔振器。文章综述了用于航天器微振动隔离的高静刚度–低动刚度隔振器,包括实际应用中的常用类型和近年来具有应用前景的类型,对各类型隔振器的研发热点进行分析,并就此种隔振器的结构特点限制提出下一步研究方向。

     

    Abstract: With the development of high-precision spacecraft payloads, the vibration isolation becomes more and more important. In the ground micro-vibration tests of such spacecraft, the free boundary in the orbiting process should be simulated and the vibration should be isolated from the ground with the mass of the spacecraft being supported. Therefore, quasi-zero-stiffness isolators with high static stiffness and low dynamic stiffness were developed to satisfy the above need. In this paper, the recent advances in the development of high static stiffness and low dynamic stiffness isolators are reviewed, including the common types in practical applications and those that have potential applications in recent years. The hotspots of the development are analyzed and prospected.

     

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