| 超声珩磨作用下磨削液空化泡的共振频率 |
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| 引用本文： | 郭策,祝锡晶,王建青,刘国东. 超声珩磨作用下磨削液空化泡的共振频率[J]. 北京理工大学学报, 2017, 37(1): 5-9. DOI: 10.15918/j.tbit1001-0645.2017.01.002 |
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| 作者姓名： | 郭策 祝锡晶 王建青 刘国东 |
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| 作者单位： | 1. 中北大学 机械与动力工程学院, 山西, 太原 030051; |
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| 基金项目： | 国家自然科学基金资助项目（51275490）；山西省研究生优秀创新基金资助项目（20143077）；中北大学研究生科技基金资助项目（20141112） |
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| 摘 要： | 为揭示超声珩磨加工过程中磨削液空化泡的共振特性，首先利用VHX-600ESO显微镜对油石表面的磨削液进行了微观测量试验，得到了共振状态下的空化泡.基于空化泡的动力学理论，推导出了超声珩磨作用下磨削液中空化泡的共振频率方程.数值模拟了水和煤油中空化泡初始半径、磨削液静压力、气泡内含气压、磨削液温度对空化泡共振频率的影响.通过讨论磨削液中空化泡的振动位移，验证了超声频率与空化泡共振频率的匹配关系.结果表明，水中的空化泡要比煤油中更容易发生共振，这是导致粗珩选择水溶液而精珩选择煤油的一个重要原因.
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| 关 键 词： | 超声振动 珩磨 空化 共振频率 |
| 收稿时间： | 2015-03-16 |
Resonant Frequency of Cavitation Bubble in Grinding Fluid Under Ultrasonic Honing |
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| GUO Ce,ZHU Xi-jing,WANG Jian-qing and LIU Guo-dong. Resonant Frequency of Cavitation Bubble in Grinding Fluid Under Ultrasonic Honing[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2017, 37(1): 5-9. DOI: 10.15918/j.tbit1001-0645.2017.01.002 |
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| Authors: | GUO Ce ZHU Xi-jing WANG Jian-qing LIU Guo-dong |
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| Affiliation: | 1. School of Mechanics and Power Engineering, North University of China, Taiyuan, Shanxi 030051, China;2. Taiyuan University of Technology, Shanxi Key Laboratory of Precision Machinging, Taiyuan, Shanxi 030024, China |
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| Abstract: | To reveal the resonance characteristics of cavitation bubble in the grinding fluid during ultrasonic honing, experimental observations on the grinding fluid of oilstone surface were carried out firstly using microscope VHX-600ESO. The cavitation bubble in the resonance state was observed. Based on the bubble dynamics, the resonant frequency equation was established for cavitation bubble in the grinding fluid during ultrasonic honing. The effect of ambient bubble radius,ambient pressure,gas content and ambient temperature of water and kerosene on bubble resonant frequency in the grinding fluid was numerically simulated respectively. The coordination relationship of ultrasonic frequency and cavitation bubble resonance frequency was verified by analyzing the displacement of a cavitation bubble. The results show that the resonance cavitation bubble occurs more easily in water than in kerosene at the same conditions, which is an important reason that water can be selected in coarse honing and kerosene can be chosen in fine honing. |
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| Keywords: | ultrasonic vibration honing cavitation resonant frequency |
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