Page 66 - 《应用声学》2023年第6期
P. 66
1176 2023 年 11 月
T [2] Ogilvy J A. Computerized ultrasonic ray tracing in
10 ⊲
austenitic steel[J]. NDT International, 1985, 18(2): 67–77.
⊲
15 [3] Ogilvy J A. An iterative ray tracing model for ultrasonic
⊲
nondestructive testing[J]. NDT & E International, 1992,
⊲
20 25(1): 3–10.
⊲
z/mm 25 ⊲ [4] Moysan J, Apfel A, Corneloup G, et al. Modelling the
grain orientation of austenitic stainless steel multipass
⊲
30 welds to improve ultrasonic assessment of structural in-
⊲
tegrity[J]. International Journal of Pressure Vessels and
⊲
35 Piping, 2003, 80(2): 77–85.
⊲
[5] Spies M. Modeling of transducer fields in inhomogeneous
40
-15 -10 -5 0 5 10 15 anisotropic materials using Gaussian beam superposi-
x/mm tion[J]. NDT & E International, 2000, 33(3): 155–162.
[6] Fellinger P, Marklein R, Langenberg K J, et al. Nu-
图 11 修正后的成像结果
merical modeling of elastic wave propagation and scat-
Fig. 11 The corrected imaging result tering with EFIT—Elastodynamic finite integration tech-
nique[J]. Wave Motion, 1995, 21(1): 47–66.
4 结论 [7] Halkjær S, Sørensen M P, Kristensen W D. The propa-
gation of ultrasound in an austenitic weld[J]. Ultrasonics,
本文基于 Ogilvy焊缝模型,建立了各向异性奥 2000, 38(1–8): 256–261.
氏体不锈钢焊缝仿真模型,使用 Dijkstra 路径搜索 [8] Hannemann R, Marklein R, Langenberg K J, et al. Ul-
trasonic wave propagation in real-life austenitic V-butt
算法对各向异性焊缝中的声传播路径和传播时间
welds: numerical modeling and validation[J]. AIP Confer-
进行了计算和理论分析。基于实验室超声相控阵系 ence Proceedings, 2000, 509(1): 145–152.
统,采集了焊缝试块的全矩阵回波数据。之后,根据 [9] Zhao X Y, Gang T, Zhao X M. Simulation and experi-
ments of ultrasonic propagation in nickel-based alloy weld-
各向异性下的 TFM 成像原理,使用各向异性下的
ments[J]. China Welding, 2008, 17(4): 17–21.
TFM 传播时间计算结果替换原始回波数据中的传 [10] Nowers O, Duxbury D J, Zhang J, et al. Novel ray-tracing
播时间,从而对原始数据进行修正并重新成像。结 algorithms in NDE: application of Dijkstra and A algo-
∗
果表明,这一方法能够有效修正基于均匀介质模型 rithms to the inspection of an anisotropic weld[J]. NDT
& E International, 2014, 61: 58–66.
的传统 TFM 成像所产生的缺陷定位精度和分辨率
[11] 杨敬, 吴斌, 焦敬品, 等. 各向异性焊缝缺陷超声阵列全聚焦
问题,为各向异性奥氏体不锈钢的超声检测提供了 成像方法 [J]. 声学学报, 2019, 44(1): 125–135.
一种新的思路和方法。 Yang Jing, Wu Bin, Jiao Jingpin, et al. Total focus imag-
ing of defects in anisotropic welds using ultrasonic ar-
ray[J]. Acta Acustica, 2019, 44(1): 125–135.
参 考 文 献 [12] Guo Z C, Yan S G, Zhang B X. Simulation of acous-
tic fields emitted by ultrasonic phased array in austenitic
[1] Silk M G. A computer model for ultrasonic propagation steel weld[J]. Chinese Physics B, 2019, 28(11): 114302.
in complex orthotropic structures[J]. Ultrasonics, 1981, [13] Dijkstra E W. A note on two problems in connexion with
19(5): 208–212. graphs[J]. Numerische Mathematik, 1959, 1(1): 269–271.