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基于动力吸振器的空间桁架多自由度振动抑制

杨恺 崔龙 黄海

杨恺, 崔龙, 黄海等 . 基于动力吸振器的空间桁架多自由度振动抑制[J]. 北京航空航天大学学报, 2013, 39(3): 295-299.
引用本文: 杨恺, 崔龙, 黄海等 . 基于动力吸振器的空间桁架多自由度振动抑制[J]. 北京航空航天大学学报, 2013, 39(3): 295-299.
Yang Kai, Cui Long, Huang Haiet al. Multi-degree-of-freedom vibration suppression of space trusses based on multiple dynamic vibration absorbers[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(3): 295-299. (in Chinese)
Citation: Yang Kai, Cui Long, Huang Haiet al. Multi-degree-of-freedom vibration suppression of space trusses based on multiple dynamic vibration absorbers[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(3): 295-299. (in Chinese)

基于动力吸振器的空间桁架多自由度振动抑制

基金项目: 航天科技创新基金资助项目(CASC200902);北京航空航天大学研究生创新实践基金资助项目(YCSJ-01-02)
详细信息
    作者简介:

    杨恺(1986-),男,湖北恩施人,博士生,yangkai@sa.buaa.edu.cn.

  • 中图分类号: TB535

Multi-degree-of-freedom vibration suppression of space trusses based on multiple dynamic vibration absorbers

  • 摘要: 为实现对大型空间柔性桁架结构的振动控制,提出了一种基于动力吸振器的桁架多自由度自适应振动控制方法.首先阐述了采用多个动力吸振器实现桁架多自由度振动抑制的SISO(Single Input Single Output)控制策略,然后仿真验证了单吸振器系统对多频扰动的自适应抑制能力.其中控制算法为多频ADC算法,该算法无需知道结构的精确模型,即能通过自适应控制律实现对多频振动的抑制.仿真结果显示,相对被动吸振器,各频率分量抑制效果分别提高了62.38 dB和42.51 dB.最后实验验证了多动力吸振器对三棱柱桁架多自由度振动的抑制效果,实验结果显示,动力吸振器对单频振动的各自由度抑制效果分别为95.13%,93.59%和95.01%,对多频振动的各自由度抑制效果分别为94.26%,91.55%和93.42%.

     

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出版历程
  • 收稿日期:  2011-10-11
  • 网络出版日期:  2013-03-31

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