文章摘要
贺西平,胡时岳,陈航.换能器前辐射头与轴向相平行方向的弯曲振动[J].,2003,22(5):9-11,4
换能器前辐射头与轴向相平行方向的弯曲振动
Flexural vibration parallel to the axis of a compound transducer radiator
  
中文摘要:
      复合棒型换能器前面的变截面组件在工作时常伴有弯曲振动现象,这在一定程度上会影响换能器的工作性能;利用复合棒型换能器的纵向振动基频与前辐射头弯曲振动的恰当耦合,可展宽换能器的频带。本文用有限元法,研究了前辐射头在声换能器组成中的弯曲振动问题,与测试结果相吻合。
英文摘要:
      Variable cross-sectional component bar, in front of a compound bar transducer, always lead to the appearance of nexural vibration at working, in addition to the expected longitudinal vibration. To a certain extent, this may impair the working performance of the transducer; But the bandwidth of the compound bar transducer may be improved by mode coupling between the longitudinal mode and flexural mode of the head. Investigating clearly characteristics of flexural vibration parallel to the axis of variable cross-section bar, has a important significance for acoustic transducer designing. In this paper, the flexural vibrating of a horn in compound bar transducer is investigated by using finite element methods, the calculating results are in good agreement with experiments.
DOI:10.11684/j.issn.1000-310X.2003.05.003
中文关键词: 前辐射头  弯曲振动  有限元方法
英文关键词: Horn  Flexural vibrating  Finite element method
基金项目:
作者单位
贺西平 西安交通大学建力学院机械结构强度与振动国家重点实验室
西安 710049 
胡时岳 西安交通大学建力学院机械结构强度与振动国家重点实验室
西安 710049 
陈航 西北工业大学航海工程学院 西安 710072 
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