Ultrasonic inverse identification of surface integrity of aviation functional coatings through material-oriented regularization

Z Ma, L Sun, Z Luo, L Lin, M Lei - NDT & E International, 2023 - Elsevier
Accurately controlling surface integrity of aviation functional coatings including defect,
geometry, structure, and property is important to balance the comprehensive performance of …

Porosity estimation of abradable seal coating with an optimized support vector regression model based on multi-scale ultrasonic attenuation coefficient

L Lin, W Zhang, Z Ma, M Lei - NDT & E International, 2020 - Elsevier
Accurate porosity characterization is of great significance to evaluate abradable seal coating
comprehensive performance. In this paper, a support vector regression model optimized by …

ABIDE: A Novel Scheme for Ultrasonic Echo Estimation by Combining CEEMD-SSWT Method with EM Algorithm

Y Jiao, Z Li, J Zhu, B Xue, B Zhang - Sustainability, 2022 - mdpi.com
Ultrasonic echo estimation has played an important role in industrial non-destructive testing
and analysis. The ability to estimate parameters in the ultrasonic echo model is crucial to …

Application of all-optical laser ultrasonics for characterization of sub-mm layers in multilayer structure

X Yang, C Zhang, C Chen, A Sun, B Ju, Q Shen - Applied Acoustics, 2021 - Elsevier
The last decades have seen the rapid development of laser ultrasonic (LU) techniques for
remote inspection for composite structures. However, it is still challenging for current LU …

Solid–liquid interface reconstruction for sandwich structure metal plate via laser-ultrasonic techniques

J Zhang, D Xu, F Dong, R Wang, Q Yang… - Review of Scientific …, 2021 - pubs.aip.org
A laser-ultrasonic testing system was built for the purpose of liquid core detection of a
moving and inaccessible continuous casting slab. Reflected waves from different solid …

Decomposition of overlapping peaks in X‐ray fluorescence using improved crow searching algorithm based on opposite learning

X Zhao, S Sun, M Li, J Zhang, K Li… - Journal of …, 2021 - Wiley Online Library
To overcome the difficulties in overlapping peaks decomposition in X‐ray fluorescence
(XRF) spectrum of heavy metal Pb and As, an improved crow searching algorithm …

Inverse identification of geometric and acoustic parameters of inhomogeneous coatings through URCAS-based least-squares coupled cross-correlation algorithm

Z Ma, T Qi, L Lin, M Lei - Ultrasonics, 2022 - Elsevier
Aiming to determine the geometric and acoustic parameters of inhomogeneous multi-layer
coatings, an ultrasonic pressure reflection coefficient amplitude spectrum (URCAS) is …

多层包铁结构超声反射频谱数值仿真.

陈祎婷, 陆铭慧, 朱颖, 黄嘉诚… - Piezoelectrics & …, 2022 - search.ebscohost.com
(南昌航空大学无损检测教育部重点实验室, 江西南昌330063) 摘要: 随着直升机技术的发展,
急需对一种新型的直升机桨叶包铁结构做质量检测研究, 该包铁结构外层为不锈钢, 中层为橡胶 …

Series Expanding of the Ultrasound Transmission Coefficient Through a Multilayered Structure

A Chitnalah, N Aouzale, H Jakjoud - Archives of Acoustics, 2023 - acoustics.ippt.gov.pl
Obviously, the resulting infinite summation has to be reduced to a finite one, according to
some level of accuracy. The numerical estimation of the transmission coefficient using the …

Simultaneous determination of layer thicknesses in graded layer materials by ultrasonic non-destructive method

C Zhang, X Yang, G Luo, Q Shen… - Insight-Non-Destructive …, 2021 - ingentaconnect.com
Functionally graded materials (FGMs) are widely applied in aerospace, energy, biology and
other fields. Simultaneous determination of the thicknesses of all the graded layers is of …