Page 142 - 《应用声学》2020年第5期

第 39 卷 第 5 期 Vol. 39, No. 5
2020 年 9 月 Journal of Applied Acoustics September, 2020

⋄ 研究报告 ⋄

超声搅拌磁流变抛光液的声场仿真分析 ∗

姚炳廷 1,2 杨胜强 1,2† 郭 策 1,2 李秀红 1,2

(1 太原理工大学机械工程学院 太原 030024)
(2 精密加工山西省重点实验室 太原 030024)
摘要：为了探究超声搅拌磁流变抛光液的制备及优化工艺，利用多物理场数值计算方法，建立了超声搅拌磁
流变抛光液的声场仿真模型。研究了 20 kHz 下不同液位深度、超声变幅杆探入深度、不同功率下磁流变抛光
液的声场分布。通过测量磁流变抛光液的声场强度对声场仿真进行了验证。结果表明：随着距变幅杆距离的
增加，声强逐渐减弱，高声强区域主要分布在换能器轴线附近。声强在距变幅杆输出端 20 mm 范围内急剧衰
减，变幅杆最佳探入深度为 10 mm，增大功率有助于空化区域的扩大。声场仿真结果与实验测量结果基本一
致，对磁流变抛光液的制备提供了数值计算基础。
关键词：超声搅拌；磁流变抛光液；空化；声场分布
中图法分类号: O426 文献标识码: A 文章编号: 1000-310X(2020)05-0784-07
DOI: 10.11684/j.issn.1000-310X.2020.05.018

Acoustic field simulation analysis of ultrasonic stirring magnetorheological

polishing fluid

YAO Bingting 1,2 YANG Shengqiang 1,2 GUO Ce 1,2 LI Xiuhong 1,2

(1 School of Mechanical Engineering, Taiyuan University of Technology, Taiyuan 030024, China)
(2 Shanxi Key Laboratory of Precision Machining, Taiyuan 030024, China)

Abstract: In order to investigate the preparation and optimization of ultrasonic stirring magnetorheological
polishing fluid, a multiphysics numerical calculation method was used to establish a sound field simulation model
of ultrasonic stirring magnetorheological polishing fluid, and a frequency domain analysis was performed. The
sound field distribution of different level depth, ultrasonic horn inlet depth and different power was studied.
The intensity of a sound field under different test parameters was measured by using sound intensity measuring
instrument point by point, and was verified with the sound field simulation model. The results demonstrate that
the sound intensity gradually decreases with the increase of distance from the horn, and the region of the high
sound intensity is mainly distributed near the axis of the horn. The sound intensity is attenuated sharply within
a range of 20 mm from the horn. The optimal penetration depth of the horn is 10 mm. Increasing the power will
help expand the cavitation area. Sound field simulation results are basically consistent with the experimental
measurement results, providing a numerical calculation basis for the preparation of the magnetorheological
polishing fluid.
Keywords: Ultrasonic stirring; Magnetorheological polishing fluid; Cavitation; Sound field distribution

2020-02-17 收稿; 2020-04-02 定稿
山西省应用基础研究计划项目 (201901D211016), 山西省高等学校科技创新项目 (201802038)
∗
作者简介: 姚炳廷 (1995– ), 男, 山西太原人, 硕士研究生, 研究方向: 零件表面精密加工。
† 通信作者 E-mail: tutysq@263.net.cn