MISC

2003年

モードセンサを用いた骨組構造物の振動制御に関する研究 (分布定数系モードセンサについて)

日本機械学会論文集C編投稿中
  • 菊島 義弘
  • ,
  • 田中 信雄

69
687
開始ページ
2999
終了ページ
3006
記述言語
日本語
掲載種別
DOI
10.1299/kikaic.69.2999
出版者・発行元
一般社団法人日本機械学会

Vibration mode of a truss structure is different to that of a cantilever. The objective of the present work is to establish a new sensing technique for specific vibration mode of the truss. In this method the distributed modal sensor is employed to determine the vibration mode. First the design process for a modal filtering method is examined using a one-dimensionally distributed modal sensor. Then the shape of the vibration mode, which is required for designing the sensor, is determined and, based on the displacement distribution of this mode shape, a modal filter can be designed. If the sensor is designed under the condition of a fixed vibration mode, the error signals introduced during the measurement are considered to cause unfavorable effect on the sensitivity. As a counter measure, a polynomial approximation with minimum errors is used to smooth the measured vibration mode. The modal filter designed above is attached to the truss structure and excitation tests of the truss are conducted for evaluating separation performance of the modal filter. By comparing the results of the present system with a distributed modal sensor and the inertial mass actuator system commonly used so far, it is found that the present sensing method is far more useful.

リンク情報
DOI
https://doi.org/10.1299/kikaic.69.2999
CiNii Articles
http://ci.nii.ac.jp/naid/110002379229
CiNii Books
http://ci.nii.ac.jp/ncid/AN00187463
URL
http://id.ndl.go.jp/bib/6776449
ID情報
  • DOI : 10.1299/kikaic.69.2999
  • ISSN : 0387-5024
  • ISSN : 1884-8354
  • CiNii Articles ID : 110002379229
  • CiNii Books ID : AN00187463

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