文章摘要
周光平.超声弯曲振动变幅杆的特性[J].声学技术,2002,(3):128~130
超声弯曲振动变幅杆的特性
The performance of ultrasonic flexural solid horn with simple shape
投稿时间:2000-09-05  修订日期:2000-12-06
DOI:
中文关键词: 弯曲振动  变幅杆  谐振曲线  放大系数
英文关键词: flexural vibration  solid horn  resonance curve  magnification
基金项目:
作者单位
周光平 深圳职业技术学院, 深圳, 518055 
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中文摘要:
      根据文献[1]提出的弯曲振动变幅杆的分析方法,通过大量数值计算,对圆截面指数形、锥形和悬链线形变幅杆弯曲振动的特性进行了研究。研究结果表明,变幅杆弯曲振动的频率随其长度增加而降低,随其直径增大而升高;进一步研究表明,尽管变幅杆谐振频率与其直径大小有关,但只要变幅杆两端直径比值一定,则其谐振频率与尺寸参数间存在一定关系,本文用谐振曲线描述了这一关系,谐振曲线对变幅杆设计以及复合振动的研究是一个非常重要的工具。最后对几种变幅杆的放大能力进行了比较,按从大到小的顺序依次是:悬链线形、指数形和锥形。
英文摘要:
      Based on the analytical method presented in reference [1] the vibration characteristics of three conventional solid horn are investigated by using numerical computation method. The results show that the resonant frequency of the horns decreases when the horns become longer and that the frequency increases when the horns become thick. Further study shows that there exists certain relation between the resonant frequency and the size parameters of horns which is independent of the values of the diameters of the horn when the ratio of large end diameter to small end diameter of a horn. This relation is described by resonance curve which is a important tool for horn design and complex-mode vibration analysis. Concerning the magnification capability of three types of horns the magnification of the catenary horn is greater than that of the exponential horn,which is in succession greater than that of the conic horn.
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