Page 5 - 《应用声学》2023年第4期

第 42 卷 第 4 期 Vol. 42, No. 4
2023 年 7 月 Journal of Applied Acoustics July, 2023

⋄ 研究报告 ⋄

新型柱孔式模式转换型纵-扭复合模态超声振动系统 ∗

林基艳 1,2 林书玉 2†

(1 榆林学院信息工程学院 榆林 719000)
(2 陕西师范大学物理学与信息技术学院 西安 710119)
摘要：为了改善基于螺旋槽结构和斜槽结构的模式转换型纵 -扭复合模态超声振动系统存在的结构复杂、扭转
分量较小等问题，论文提出了基于新型柱孔式复合变幅杆的模式转换型纵 -扭复合模态超声振动系统，并利用
有限元法和数据分析对其进行了仿真分析。结果表明，引入新型柱孔式复合变幅杆的系统的输出端面的剪切
应力、旋转角度得到了大幅提升，能够有效地提高纵 -扭振动的转换效率。
关键词：螺旋槽结构；斜槽结构；模式转换型纵 -扭复合模态超声振动系统；新型柱孔式复合变幅杆
中图法分类号: O426.2 文献标识码: A 文章编号: 1000-310X(2023)04-0667-07
DOI: 10.11684/j.issn.1000-310X.2023.04.001

Design of a new cylindrical holes mode conversion longitudinal torsional
composite mode ultrasonic vibration system

LIN Jiyan 1,2 LIN Shuyu 2

(1 School of Information Technology, Yulin University, Yulin 719000, China)
(2 School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710119, China)

Abstract: At present, most studies have realized the mode conversion longitudinal torsional composite vibra-
tion by opening spiral grooves or inclined slots on the longitudinal vibration horn. However, the system based
on spiral grooves structure has some disadvantages, such as difficult model establishment and complex struc-
ture. Therefore it has great limitations in practical application. It is relatively simple to use the inclined slot
structure to realize the mode conversion longitudinal torsional composite vibration, but the energy conversion
efficiency is low. How to optimize the mode conversion longitudinal torsional composite vibration has become
an urgent problem to be solved. In this paper, a mode conversion longitudinal torsional composite mode ultra-
sonic vibration system based on the new cylindrical holes composite horn is proposed. The simulation analysis
of the new system is carried out by using the finite element method and data analysis. The analysis results
show that the shear stress and rotation angle of the output end face of the new cylindrical holes composite horn
system are greatly improved, so as to effectively improve the conversion efficiency of longitudinal and torsional
vibration.
Keywords: Spiral grooves structure; Inclined slots structure; Mode conversion longitudinal torsional
composite mode ultrasonic vibration system; New cylindrical holes composite horn

2022-03-17 收稿; 2022-04-12 定稿
国家自然科学基金资助项目 (11874253, 11964040)
∗
作者简介: 林基艳 (1984– ), 女, 山东烟台人, 博士研究生, 研究方向: 功率超声、换能器。
† 通信作者 E-mail: sylin@snnu.edu.cn