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Acta Aeronautica et Astronautica Sinica ›› 2023, Vol. 44 ›› Issue (S2): 729289-729289.doi: 10.7527/S1000-6893.2023.29289

• Icing and Anti/De-icing • Previous Articles     Next Articles

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

Hongjian ZHANG1,2, Yanxin ZHANG1,2, Jianjun XIONG1, Zhao ZHAO1, Lin RAN1, Xian YI1,2()   

  1. 1.Key Laboratory of Icing and Anti/De-icing,China Aerodynamics Research and Development Center,Mianyang 621000,China
    2.State Key Laboratory of Aerodynamics,China Aerodynamics Research and Development Center,Mianyang 621000,China
  • Received:2023-07-10 Revised:2023-07-16 Accepted:2023-07-17 Online:2023-10-11 Published:2023-10-08
  • Contact: Xian YI E-mail:yixian_2000@163.com
  • Supported by:
    National Science and Technology Major Project (J2019-Ⅲ-0010-0054);National Natural Science Foundation of China (Key Program)(12132019)

Abstract:

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.

Key words: ice detection, ultrasonic beam, phased array, numerical simulation, S0 mode

CLC Number: