Finite element analysis based sparse array features modeling and localization method forpressure vessel damage
-
摘要: 针对压力容器无损检测中较难检测的封头部位，提出了一种基于压电超声导波阵列的在线监测方法。首先，建立压力容器封头结构的有限元模型，利用窄带Lamb波模拟结构损伤源的散射信号；其次，将被监测区域离散成稀疏点，对每个稀疏点的回波信号提取阵列波达时间差作为导波阵列的稀疏特征信息，并计算损伤回波信号的波达时间均方根值（RMS），形成基于有限元模型的损伤稀疏特征样本库；最后，通过计算实测损伤回波信号均方根值与损伤稀疏特征样本库匹配成像，像素点最高的位置即为损伤位置。试验结果表明，模拟损伤距离定位误差为20 mm，角度定位误差为1°，与实际损伤位置较为符合，能够较准确地反映缺陷的位置。Abstract: Aiming at the difficulty of nondestructive testing of pressure vessels head part, a piezoelectric ultrasonic guided wave array is proposed for pressure vessel damage localization. Firstly, a finite element model of the head part of pressure vessel is established, and the narrow-band of Lamb wave is excited to simulate the echo of the damage. Secondly, discrete the monitored area into sparse points, the time of flight (TOF) of array signal at each sparse points is obtained as the sparse feature of the guided wave array, and calculates the root mean square (RMS) value of them to form the damage sparse feature sample library. Finally, the RMS of the measured array signal when a damage happen is calculated to match the damage sparse feature sample library for damage imaging, and the highest position of the pixel is the position of damage occurred. The test results show that the simulated damage distance positioning error is 20 mm and the angle positioning error is 1°, which is more consistent with the actual damage position and can accurately reflect the position of the defect.
-
Keywords:
- finite element analysis /
- pressure vessel /
- guided wave array /
- TOF /
- damage localization
-
-
[1] WANG X J,QIANG W J,SHU G G.Magnetic non-destructive evaluation of hardening of cold rolled reactor pressure vessel steel[J].Journal of Nuclear Materials,2017,492:178-182.
[2] YANG B,XIANG Y X,XUAN F Z,et al.Damage localization in hydrogen storage vessel by guided waves based on a real-time monitoring system[J].International Journal of Hydrogen Energy,2019,44(40):22740-22751.
[3] 李培中,于丛娟,孙晓靖.压力容器制造监检中发现的射线检测问题综述[J].中国特种设备安全,2016,32(1):37-41. [4] WILSON J W,ALLEN D J,PEYTON A J,et al.Detection of creep degradation during pressure vessel testing using electromagnetic sensor technology[J].Energy Materials,2018,13(2):448-457.
[5] XU G R,GUAN X S,QIAO Y L,et al.Analysis and innovation for penetrant testing for airplane parts[J].Procedia Engineering,2015,99:1438-1442.
[6] AMJADIAN M,AGRAWAL A K.Modeling,design,and testing of a proof-of-concept prototype damper with friction and eddy current damping effects[J].Journal of Sound and Vibration,2018,413:225-249.
[7] LUGOVTSOVA Y,PRAGER J.Structural health monitoring of composite pressure vessels using guided ultrasonic waves[J].Insight-Non-Destructive Testing and Condition Monitoring,2018,60(3):139-144.
[8] 刘伟成,张路根,胡智,等.海洋石油静电脱水压力容器的超声导波检测[J].无损检测,2012,34(2):31-34,67. [9] CHEN D Y,WANG D,CHEN H,et al.Research of key technology for macroscopic hydrogen induced injury testing and in-service monitoring of pressure vessel in wet hydrogen sulfide environment[J].Procedia Engineering,2015,130:1665-1676.
[10] PARODI M,FIASCHI C,MEMMOLO V,et al.Interaction of guided waves with delamination in a bilayered aluminum-composite pressure vessel[J].Journal of Materials Engineering and Performance,2019,28(6):3281-3291.
[11] SAUSE M G R,HAMSTAD M A,HORN S.Finite element modeling of lamb wave propagation in anisotropic hybrid materials[J].Composites Part B:Engineering,2013,53:249-257.
[12] DUCZEK S,JOULAIAN M,DÜSTER A,et al.Numerical analysis of Lamb waves using the finite and spectral cell methods[J].International Journal for Numerical Methods in Engineering,2014,99(1):26-53.
[13] MOSER F,JACOBS L J,QU J M.Modeling elastic wave propagation in waveguides with the finite element method[J].NDT & E International,1999,32(4):225-234.
[14] JIANG W X,GAO K,HE Z,et al.Using Hilbert-Huang transform to process and analyze the corrosion acoustic emission signal of the tank bottom plate[J].IOP Conference Series:Earth and Environmental Science,2020,508(1):012161.
计量
- 文章访问数: 2
- HTML全文浏览量: 0
- PDF下载量: 2
下载:
