Numerical simulation of phased array ultrasonic beam propagation characteristics in ice layer

被引：0
|
作者：
Zhang H. [1 ,2 ]
Zhang Y. [1 ,2 ]
Xiong J. [1 ]
Zhao Z. [1 ]
Ran L. [1 ]
Yi X. [1 ,2 ]
机构：
[1] Key Laboratory of Icing and Anti/De-icing, China Aerodynamics Research and Development Center, Mianyang
[2] State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang
来源：
Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica | 2023年 / 44卷
基金：
中国国家自然科学基金;
关键词：
ice detection; numerical simulation; phased array; S[!sub]0[!/sub] mode; ultrasonic beam;
D O I：
10.7527/S1000-6893.2023.29289
中图分类号：
学科分类号：
摘要：
To solve the problems of small monitoring range，low detection sensitivity and limited detection of ice thickness，the mechanism of ultrasonic icing detection based on phased array is studied. Based on the synthesis principle of phased array ultrasonic beam，using COMSOL as a numerical calculation platform，a propagation model of phased array ultrasonic beam on aluminum plate covered with ice is constructed，and the propagation law of phased array ultrasonic beam in three-dimensional ice layer is studied. Compared with the other icing detection technologies，phased array ultrasonic icing detection offers a wider detection range. Compared with in-phase excitation，the energy of ultrasonic beam generated by phased array excitation is more concentrated. The displacement peak of the S0 mode beam changes more significantly with ice thickness，ice width，and ice length. The displacement peak change rate of the S0 mode beam increases with the excitation frequency，which can enhance the sensitivity of ice detection. When the excitation frequency exceeds a certain level，the peak displacement of the S0 mode beam exhibits a turning point，which may lead to early saturation of ice thickness. Choosing an appropriate excitation frequency can simultaneously improve the sensitivity of icing detection and the upper limit of ice thickness detection. The propagation characteristics of phased array ultrasonic beam in ice layer are preliminarily verified，which provides theoretical reference for future engineering application of ultrasonic icing detection. © 2023 Chinese Society of Astronautics. All rights reserved.
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