文章摘要
桑永杰,林书玉.基于能量修正法进行大尺寸指数型超声变幅杆准确设计[J].,2007,26(4):193-196
基于能量修正法进行大尺寸指数型超声变幅杆准确设计
Precise design of large dimension exponential horn based on energy modification method
  
中文摘要:
      基于能量修正法修正了大尺寸变幅杆纵振动共振频率方程,得出了其修正频率表达式,分析了大尺寸指数型变幅杆的共振频率修正值,并利用有限元软件ANSYS对一组大尺寸指数变幅杆进行了模态分析.结果表明,比起一维理论值,修正后的频率值更接近于有限元仿真分析结果,变幅杆的尺寸越大(即径长比越大)这种修正效果越明显。
英文摘要:
      Based on energy modification method,the longitudinal resonance frequency equation of large dimension exponential horn was modified in the article.As a example, the longitudinal resonance modification frequency of large dimension exponential horn was studied.By finite element analysis software ANSYS,a set of large dimension ex- ponential horn were analysed.Comparing with one-dimensional theory,the solutions of coupled theory are closer to finite element analysis solutions,and the larger for the dimension,the better for modify effect.
DOI:10.11684/j.issn.1000-310X.2007.04.001
中文关键词: 大尺寸指数变幅杆  共振频率  耦合振动  有限元
英文关键词: Large dimension exponential horn  Resonance frequency  Coupled vibration  Finite element
基金项目:国家自然科学基金(10674090)
作者单位
桑永杰 陕西师范大学应用声学研究所,西安,710062 
林书玉 陕西师范大学应用声学研究所,西安,710062 
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