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Mode localization in a satellite system due to parameters detuning

  • Shuai Zhang
  • , Ya Jun Luo
  • , Xi Nong Zhang
  • , Chi Cheng Ma
  • Xi'an Jiaotong University

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

When modeling structures consisting of numerous repeated segments, structural dynamicists typically assume that the geometry and material properties of repeated elements are identical. The mode shapes obtained from this idealized model are global in nature, and the modal response extends throughout the structure. However, the presence of small irregularities in nominally periodic structures may localize the modes of free vibration and inhibit the propagation of vibration. The finite element method is used to study localization of a satellite with solar panels which the symmetry condition would be violated. Then, a measure for the degree of mode localization is defined and used in the numerical analysis. The results show that small deviations of the solar panel lengths lead to the occurrence of strongly localized modes. The values of localization factors increase with the ratio of imperfections.

源语言英语
主期刊名21st International Congress on Sound and Vibration 2014, ICSV 2014
出版商International Institute of Acoustics and Vibrations
3460-3466
页数7
ISBN(电子版)9781634392389
出版状态已出版 - 2014
活动21st International Congress on Sound and Vibration 2014, ICSV 2014 - Beijing, 中国
期限: 13 7月 201417 7月 2014

出版系列

姓名21st International Congress on Sound and Vibration 2014, ICSV 2014
4

会议

会议21st International Congress on Sound and Vibration 2014, ICSV 2014
国家/地区中国
Beijing
时期13/07/1417/07/14

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