文章摘要
林书玉.切向极化压电陶瓷细长圆棒的扭转振动研究[J].声学技术,1994,(2):89~93
切向极化压电陶瓷细长圆棒的扭转振动研究
Study on torsional vibration of piezoelectric ceramic slender rods polarized in tangential direction
投稿时间:1993-12-08  修订日期:1994-03-14
DOI:
中文关键词: 扭转振动  等效电路  共振频率  切向极化  压电陶瓷细棒
英文关键词: torsional vibration  electro-mechanical equivalent circuit  resonance frequency  piezoelectric ceramic slendet rods  polarization in the tangential direction
基金项目:
作者单位
林书玉 陕西师范大学应用声学研究所, 西安 710062 
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中文摘要:
      利用压电材料的压电及运动方程,本文研究了切向极化压电陶瓷细长棒的扭转振动,分析了扭转振动压电陶瓷细棒中扭转角及扭矩的分布规律,推出了扭转振动压电陶瓷振子的机电等效电路,并得出了振子的共振及反共振频率方程,为扭转振动超声换能器的设计及计算奠定了一定的理论基础。
英文摘要:
      Based on the piezoelectric and wave equations,the torsional vibration of piezoelectric ceramic slender rods polarized in the tangential direction was studied.The distribution functions of the torsional angle and the torsional moment were derived. The electro-mechanical equivalent circuit was obtained and the frequency equation was derived.This theory will provide theoretical bases for the design and the calculation of the torsional transducers.
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