Semi-passive noise isolation of a smart board with embedded piezoelectric elements

Jinhao Qiu, Gael Sebald, Makoto Yoshida, Daniel Guyomar, Kaori Yuse

研究成果: Conference contribution

抄録

The semi-passive control method was used in the noise isolation of a smart board and compared with passive and active methods. Smart board is a composite board of Glass Fiber Reinforced Plastic (GFRP) with five embedded piezoelectric elements. In the semi-passive control method, an inductance and a switching circuit were connected to the piezoelectric elements to dissipate the generated energy. The function of the switching circuit is to boost the energy consumption by increasing the voltage over the piezoelectric elements. In the passive method, a RC shunting circuit was used to dissipate the energy generated by piezoelectric elements. The active control is an adaptive method based on FIR filter and filtered-X LMS algorithm. The control effects of the three methods on the first resonance mode were investigated under sweeping excitation. For a slow sweeping excitation, the damping reaches 6.1 dB with semi-passive control, 14.6 dB with active control and 6.5 dB with passive control around the first resonance frequency. The damping with active control and semi-passive control decreases when the sweeping speed increases.

本文言語English
ホスト出版物のタイトル16th International Conference on Adaptive Structures and Technologies
ページ174-181
ページ数8
出版ステータスPublished - 2006 12 1
外部発表はい
イベント16th International Conference on Adaptive Structures and Technologies, ICAST - Paris, France
継続期間: 2005 10 92005 10 12

出版物シリーズ

名前16th International Conference on Adaptive Structures and Technologies

Other

Other16th International Conference on Adaptive Structures and Technologies, ICAST
国/地域France
CityParis
Period05/10/905/10/12

ASJC Scopus subject areas

  • 土木構造工学
  • 建築および建設

フィンガープリント

「Semi-passive noise isolation of a smart board with embedded piezoelectric elements」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル