弹性波传播到声发射传感器的声压透射系数研究

PDF(1443 KB)

振动与冲击 ›› 2018, Vol. 37 ›› Issue (12) : 153-158.

论文

张建超1,2，杨绍普2，郝如江2，顾晓辉2

作者信息 +

A study on sound pressure transmission coefficient of elastic wave propagation to acoustic emission sensors

ZHANG Jianchao1,2,YANG Shaopu2,HAO Rujiang2,GU Xiaohui2

Author information +

文章历史 +

摘要

研究固体中弹性波在媒介分界面的透射规律，以提高声发射检测的精度与效率。首先，基于声学理论推导出了三种典型耦合状态的声压透射系数计算公式，明确了各参数对透射系数的影响；然后，搭建了声发射波透射实验研究平台，分别对上述典型状态下的声压透射理论计算系数进行验证；最后，基于建立的声压透射系数计算方法分析了耦合层的声阻抗、厚度值以及耦合层材料的内外位置等对声压透射系数的影响。研究结果表明，理论计算结果与实验检测结果吻合较好，建立的声压透射系数计算公式有助于指导声发射传感器增强对弹性波的拾取。

Abstract

Based on the transmission rule of elastic wave on the medium surface of the decomposition in solid, this paper aimed at improving the acoustic emission detection accuracy and efficiency. Firstly, three typical acoustic pressure transmission coefficient calculation formulas in the coupling state were derived based on theoretical derivation, then the influence on transmitting coefficient from the parameters was obtained; the experimental research platform on acoustic emission wave transmission was established, then the theory of computation on sound pressure transmitting coefficient were tested respectively under the above typical conditions; finally, based on the established calculation method of sound pressure transmitting coefficient, this paper analyzed the influence on the sound pressure transmitting coefficient from the acoustic impedance and the thickness value as well as the position of the coupling layer material. It was shown that the theoretical calculation and the experimental test results matched very well. The established calculation formulas on the sound pressure transmitting coefficient contribute to the guidance of acoustic emission sensors picking up the elastic waves.

导出引用

张建超1,2，杨绍普2，郝如江2，顾晓辉2. 弹性波传播到声发射传感器的声压透射系数研究[J]. 振动与冲击, 2018, 37(12): 153-158

ZHANG Jianchao1,2,YANG Shaopu2,HAO Rujiang2,GU Xiaohui2. A study on sound pressure transmission coefficient of elastic wave propagation to acoustic emission sensors[J]. Journal of Vibration and Shock, 2018, 37(12): 153-158

参考文献

[1] 沈功田. 声发射检测技术及应用[M]. 北京:科学出版社, 2015: 1-20.
[2] C.U. Grosse, M. Ohtsu. Acoustic Emission Testing-Basics for Research[M]. Springer Verlag, Berlin & Heidelberg, Germany, 2008: 3-10.
[3] 何田, 叶午, 于海生, 等. 转静件碰摩故障定位声发射波束形成方法[J]. 北京航空航天大学学报, 2015, 41(12): 2191-2197.
HE Tian，YE Wu，YU Hai-sheng, et al. Acoustic emission beamforming method for localizing[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(12): 2191-2197.
[4] 关山，彭昶. 金属切削过程刀具磨损信号的混沌特征[J]. 振动与冲击, 2015, 34(10): 28-33.
GUAN Shan，PENG Chang. Chaotic characteristics of tool wear signal during metal cutting process[J]. Journal of Vibration and Shock, 2015, 34(10): 28-33.
[5] 张建超, 郝如江, 武哲. 列车转向架侧架声发射检测的有限元仿真与试验[J]. 图学学报, 2016, 37(4): 491-495.
ZHANG Jian-chao, HAO Ru-jing, WU Zhe. Finite element simulation and experiments of acoustic emission testing on the side frame of train bogie[J]. Journal of Graphics, 2016, 37(4): 491-495.
[6] Kim R J, Choi N S, Ferracane J, et al. Acoustic emission analysis of the effect of simulated pulpal pressure and cavity type on the tooth–composite interfacial de-bonding[J]. Dental Materials Official Publication of the Academy of Dental Materials, 2014, 30(8):876-83.
[7] Placidi L, Rosi G, Giorgio I, et al. Reflection and transmission of plane waves at surfaces carrying material properties and embedded in second-gradient materials[J]. Mathematics & Mechanics of Solids, 2013, 19(5):555-578.
[8] Speirs R W, Bishop A I. Photo acoustic tomography using a Michelson interferometer with quadrature phase detection[J]. Applied Physics Letters, 2013, 103(5): 1-5.
[9] 付千发, 李萍, 谭家隆,等. 应用超声声压透射系数谱反演薄板的弹性模量[J]. 测试技术学报, 2009, 23(2):106-111.
FU Qian-fa, LI Ping, TAN Jia-long, et al. Inversion of elastic modulus of thin plate using acoustic pressure transmitting coefficient spectrum[J]. Journal of Test and Measurement Technology, 2009, 23(2):106-111.
[10] 张振国, 张秀丽, 张娜,等. 传递矩阵-驻波管法研究材料隔声性能[J]. 材料导报, 2010, 24(10):118-121.
ZHANG Zhen-guo, ZHANG Xiu-li, ZHANG Na, et al. Journal of Beijing University of Aeronautics and Astronautics[J]. Materials Review, 2010, 24(10):118-121.
[11] 魏琦. 基于超构介质的新原理声学器件研究[D]. 南京大学, 2014.
[12] 王泽锋, 胡永明, 倪明, 等. 用传递矩阵法分析水下穿孔板结构的透声特性[J]. 振动与冲击, 2008, 27(3):154-156.
WANG Ze-feng, HU Yong-ming, NI Ming, et al. Analysis transmission characteristics of underwater perforated-panel structure by transfer matrix method[J]. Journal of Vibration and Shock, 2008, 27(3):154-156.
[13] 高广健, 邓明晰, 李明亮,等. 管间界面特性对周向超声导波传播特性的影响[J]. 物理学报, 2015(22):284-293.
GAO Guang-Jian, DENG Ming-Xi, LI Ming-Liang, et al. Influence of the interfacial properties on guidedcircumferential wave propagation in the circulartube structure[J]. Physica Sinica, 2015(22):284-293.
[14] 何田, 肖登红, 刘献栋, 等. 基于近场波束形成法的声发射源定位研究[J]. 振动工程学报, 2012, 25(2): 199-205.
HE Tian, XIAO Deng-hong, LIU Xian-dong, et al. Research of acoustic emission source locat ion based on near-f ield beamforming[J]. Journal of Vibratio n Engineering, 2012, 25(2): 199-205.
[15] 杜功焕, 朱哲民, 龚秀芬. 声学基础(第三版)[M]. 南京:南京大学出版社, 2012:163-236.
[16] Lynnworth L C. Ultrasonic measurements for process control: theory, techniques, applications[J]. New York: Academic press, 2013:111-244.