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Article

Research on the Processing Method of Acoustic Focusing Cavities Based on the Temperature Gradient

by
Liqun Wu
,
Yafei Fan
,
Hongcheng Wang
,
Linan Zhang
,
Yizheng Sheng
,
Yajing Wang
and
Yaxing Wang
*
School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2021, 11(12), 5737; https://doi.org/10.3390/app11125737
Submission received: 17 May 2021 / Revised: 4 June 2021 / Accepted: 15 June 2021 / Published: 21 June 2021
(This article belongs to the Section Acoustics and Vibrations)
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Abstract

Aiming at the key factors affecting the quality and efficiency of high-energy in-beam machining, this paper studies the broadband acoustic focusing effect based on a discrete temperature gradient. Firstly, the basic theory and mathematical model of temperature-controlled acoustic focusing are established. Secondly, the acoustic focusing effect is achieved by combining the design of metasurfaces and discrete temperature. Then, the acoustic pressure and intensity distribution of acoustic focusing under a discrete temperature gradient are simulated and experimentally studied. The results show that the phase delay of transmission and reflection of acoustic wave covers the 2π interval by changing the temperature in different transmission units, which provides a theoretical basis for the processing of the acoustic focusing cavity.
Keywords: metasurfaces; discrete temperature gradient; acoustic focusing; inner cavity processing metasurfaces; discrete temperature gradient; acoustic focusing; inner cavity processing

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MDPI and ACS Style

Wu, L.; Fan, Y.; Wang, H.; Zhang, L.; Sheng, Y.; Wang, Y.; Wang, Y. Research on the Processing Method of Acoustic Focusing Cavities Based on the Temperature Gradient. Appl. Sci. 2021, 11, 5737. https://doi.org/10.3390/app11125737

AMA Style

Wu L, Fan Y, Wang H, Zhang L, Sheng Y, Wang Y, Wang Y. Research on the Processing Method of Acoustic Focusing Cavities Based on the Temperature Gradient. Applied Sciences. 2021; 11(12):5737. https://doi.org/10.3390/app11125737

Chicago/Turabian Style

Wu, Liqun, Yafei Fan, Hongcheng Wang, Linan Zhang, Yizheng Sheng, Yajing Wang, and Yaxing Wang. 2021. "Research on the Processing Method of Acoustic Focusing Cavities Based on the Temperature Gradient" Applied Sciences 11, no. 12: 5737. https://doi.org/10.3390/app11125737

APA Style

Wu, L., Fan, Y., Wang, H., Zhang, L., Sheng, Y., Wang, Y., & Wang, Y. (2021). Research on the Processing Method of Acoustic Focusing Cavities Based on the Temperature Gradient. Applied Sciences, 11(12), 5737. https://doi.org/10.3390/app11125737

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