Page 12 - 《应用声学》2022年第5期

第 41 卷 第 5 期 Vol. 41, No. 5
2022 年 9 月 Journal of Applied Acoustics September, 2022

⋄ 研究报告 ⋄

周期性扇形孔结构对斜槽型纵扭复合模态

超声振动系统性能的影响 ∗

林基艳 1,2 林书玉 2† 钟兴华 3

(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)
(3 长庆油田分公司第二采气厂 榆林 719000)

摘要：为了解决基于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扭转分量较小、纵扭转化效率
较低的问题，论文对基于周期性扇形孔和斜槽结构的模式转换型纵扭复合模态超声振动系统进行了研究，主
要仿真分析了扇形孔结构参数对基于斜槽结构的模式转换型纵扭复合模态超声振动系统谐振频率、扭转振
幅、旋转角度和剪切应力的影响规律，并找到使系统获得最佳纵扭转换效率的扇形孔结构参数，且求解出扇形
孔结构的引入对系统性能的改善幅度。
关键词：斜槽型纵扭复合模态超声振动系统；周期性扇形孔结构；扭转振幅；旋转角度；剪切应力
中图法分类号: O426.2 文献标识码: A 文章编号: 1000-310X(2022)05-0688-11
DOI: 10.11684/j.issn.1000-310X.2022.05.002

Effect of periodic fan-shaped hole structure on performance of
longitudinal and torsional composite modal ultrasonic

vibration system based on chute structure

LIN Jiyan 1,2 LIN Shuyu 2 ZHONG Xinghua 3

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

(3 The Second Gas Production Plant of Changqing Oilfield Branch, Yulin 719000, China)

Abstract: In order to solve the problem of small torsional component and low longitudinal and torsional
efficiency of mode conversion longitudinal torsional composite mode ultrasonic vibration system based on
chute structure, the mode conversion longitudinal torsional composite mode ultrasonic vibration system based
on periodic fan-shaped holes and chute structure is studied in this paper. The effects of structural parameters of
fan-shaped holes on resonant frequency, torsional amplitude, rotation angle and shear stress of mode conversion
longitudinal torsional composite mode ultrasonic vibration system based on chute structure are simulated and
analyzed. The fan-shaped hole structure parameters that enable the system to obtain the best longitudinal
torsional conversion efficiency are found, and the improvement range of the system performance caused by the
introduction of the fan-shaped hole structure is solved.
Keywords: Longitudinal and torsional composite modal ultrasonic vibration system based on chute
structure; Periodic fan-shaped hole structure; Torsion amplitude; Rotation angle; Shear stress

2021-07-20 收稿; 2021-08-13 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