超声珩磨时单空化泡的动力学分析

李旷雅; 祝锡晶; 郭策; 王建青

doi:10.13433/j.cnki.1003-8728.2014.0703

超声珩磨时单空化泡的动力学分析

doi: 10.13433/j.cnki.1003-8728.2014.0703

1.
中北大学,山西省先进制造重点实验室太原 030051

基金项目:

国家自然科学基金项目(51275490,50975265)

太原市科技明星项目(120247-17)资助

详细信息

作者简介:
李旷雅(1990-)，硕士研究生，研究方向为超声空化及超声磨削热分析，lkylby@163.Com

通讯作者:
祝锡晶，教授，博士生导师，zxj3618@263.net

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- 被引次数: 0
出版历程
- 收稿日期: 2013-07-23
- 刊出日期: 2015-06-10

Dynamics Analysis of the Single Cavitation Bubble in Ultrasonic Honing Grinding

1.
Key Laboratory for AMT of Shanxi,North University of China,Taiyuan 030051

摘要

摘要: 超声振动珩磨时单空化泡动力学的分析有助于深入研究超声振动珩磨磨削机理,故以磨削液为液体介质,研究了超声振动珩磨环境下单个气泡的动力学特性。将气泡大于初始半径的运动过程看作是等温过程,而气泡小于初始半径的运动过程看作是绝热过程,在rayleigh-Plesset方程的基础上,建立超声珩磨环境下单空化泡的动力学模型。应用4~5阶runge-Kutta法,对单空化泡动力学模型进行了数值求解,并与传统超声空化的空化泡运动特性进行了比较。结果表明:超声珩磨的环境下,磨削区空化泡膨胀的幅值较大,但频率较慢,气泡的运动规律比较稳定。
- 超声振动 /
- 珩磨 /
- 空化泡 /
- 动力学
Abstract: For obtaining the mechanism of the ultrasonic vibration honing grinding, the cavitation bubble dynamicsin the ultrasonic vibration honing grinding zone is studied in this paper, regarding the grinding fluid as the workmedium. The motion process of cavitation bubble which is greater than the initial radius is defined as isothermalprocess, and which is less than the initial radius is as adiabatic process. Based on rayleigh-Plesset equation, thedynamic model of single cavitation bubble in the ultrasonic honing was established. The model was simulated byusing 4-5 runge-Kutta method, and the simulation results were compared with those of the dynamics model in thetraditional ultrasonic field. The result shows that the amplitude of the cavitation bubble in the grinding zone ofultrasonic honing is larger, but the frequency is slower, and its movement law is comparatively stable.
- cavitation bubble /
- dynamics /
- honing /
- ultrasonics vibration

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参考文献(12)

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