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应用科学学报 ›› 1994, Vol. 12 ›› Issue (1): 46-52.

• 论文 • 上一篇    下一篇

力矩激励器及其在结构声实验中的应用

邱树业1, B. M. 吉布斯2   

  1. 1. 汕头大学物理系;
    2. 英国利物浦大学声学研究单位
  • 收稿日期:1991-08-29 修回日期:1992-12-16 出版日期:1994-03-31 发布日期:1994-03-31

MOMENT EXCITER AND ITS APPLICATION TO EXPERIMENTS OF STRUCTURE-BORNE SOUND

QIU SHUYE1, B. M. GIBBS2   

  1. 1. Shantou University;
    2. Acoustics Research Unit, Liverpool University, UK
  • Received:1991-08-29 Revised:1992-12-16 Online:1994-03-31 Published:1994-03-31

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摘要： 讨论了利用两根磁致伸缩棒(Tb0.3Dy0.7Fe1.95)组成的力矩激励器的特性.简单的理论和实验表明:力矩激励器的特性对力矩导纳测量结果基本上不会造成影响,但显然会影响力矩激励器激发转动的效率.最后计算了这个效率.

关键词: 磁致伸缩棒, 结构声, 力矩导纳, 力矩激励器

Abstract: In this paper the performances of the moment exciter which is composed of two magnetostrictive rods (Tb0.3Dy0.7Fe1.95) have been discussed.Both simple theory and experiments indicate that the performances of the moment exciter do not basically influence the measurement results of the moment mobilities, but do affect the efficiency for exciting the rotation. The efficiency for exciting the rotation has also been calculated in this paper.

Key words: moment exciter, megnetostrictive rod, moment mobility, structure-borne sound