文章摘要
严伟.新型圆管换能器预应力分析[J].声学技术,2010,(2):236~239
新型圆管换能器预应力分析
The preload stress analysis of a new type cylindrical transducer
投稿时间:2009-02-05  修订日期:2009-05-12
DOI:
中文关键词: 圆管换能器  预应力  有限元(ANSYS)  热应力
英文关键词: cylindrical transducer  preload stress  finite element method(ANSYS)  thermal stress
基金项目:
作者单位E-mail
严伟 杭州应用声学研究所, 杭州, 310012 kenyw25@sina.com 
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中文摘要:
      大功率圆管换能器在清洗、除垢、萃取等领域中有着广泛的应用.分析了一种新型圆管换能器,通过热胀冷缩原理给换能器施加预应力,充分发挥压电陶瓷的机械性能,达到大功率辐射要求.通过有限元仿真软件ANSYS对换能器的预应力进行仿真分析,着重分析了金属管材料、管壁厚度以及温度差与热应力的关系,根据优化结果选择合适的材料、尺寸制作出换能器初样品,换能器测试结果一致性较好.
英文摘要:
      High power cylindrical transducer is widely used in cleaning, contaminant separation and extraction.In order to exert the maximal mechanic capability of PZT for the purpose of high power radiation, a new type cylindrical transducer preloaded by heating the metal casing A new type cylindrical transducer preloaded by heating the metal casing is introduced in this article.Preload stress is analyzed by the finite element simulation software ANSYS.The re-lationship between the thermal stress and the attribute of the metal casing such as material, thickness and heating tem-perature is obtained through analysis.According to the optimized results, transducers have been made.Experiments show that the transducers have good performance.
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