[1] [1] LIANG Xidong, GAO Yanfeng, WANG Jiafu, et al. Rapiddevelopment of silicone rubber composite insulator in China［J］. High Voltage Engineering, 2016, 42 (9):2888-2896.

[2] [2] LIU Hui, ZHANG Yang, LI Ziyue, et al. Internaldefect detection method of composite insulator based on microwave heating［J］. High Voltage Apparatus, 2023, 59(3):179-188.

[3] [3] ZONG Kun, ZHANG Dongchen, CHATI F, et al. Analysis ofpipeline inner sediment parameters based on ultrasonic nondestructive testing［J］. Piezoelectrics & Acoustooptics, 2018, 40(4) :543-546.

[4] [4] ZHOU Yongli, ZHOU Gang, HU Hongwei, et al. Theinfluence of cladding layer thickness on surface wave focusing characteristics of phased array［J］. Piezoelectrics & Acoustooptics, 2020, 42(6):752-756.

[5] [5] DENG Honglei, HE Zhanfeng, CHEN Li. Inspection ofdebonding defects of composite insulators by ultrasonic guide wave［J］. High Voltage Apparatus, 2019, 45(1):196-202.

[6] [6] XIE Congzhen, HE Zilan, LING Yongxing, et al.Using ultrasonic phased array to inspect the internal defects of composite insulators［J］. Proceedings of the CSEE, 2012, 32(Suppl1):63-68.

[7] [7] XU Tianyong, LEI Chenghua, DONG Xiaohu, et al. Simulationstudy on ultrasonic phased array detection for internal defect of composite insulators［J］. Electrotechnics Electric, 2017(7):25-28.

[8] [8] XU Tianyong, LEI Chenghua, LI Rongchao, et al.Ultrasonic phased array detection of composite insulator internal defects［J］. Electric Power Engineering Technology, 2018, 37(6):75-79.

[9] [9] SHEN Chengye, HONG Chao, HUANG Haijun, et al.Weld defects detection using TFM phased array imagine technique［J］. Nondestructive Testing, 2020, 42(9):45-49.

[10] [10] ELEANO R, MARTI N, JIR I, et al. Experimental validation of k-Wave: Nonlinear wave propagation in layered, absorbing fluid media［J］. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2019, 67(1):81-91.

[11] [11] ZHANG Shuai, DANG Junwu, WU Jiankang, et al.Simulation of induced electric field focusing characteristics of transcranial magneto-acoustic-electrical stimulation based on K-space Pseudo-spectral method［J］. Life Science Instruments, 2021, 19(1):59-67.

[12] [12] ZHOU Zhenggan, PENG Di, LI Yang et al. Research on phased array ultrasonic total focusing method and its calibration［J］. Journal of Mechanical Engineering, 2015, 51(10):1-7.

[13] [13] HU Hongwei, DU Jian, LI Yang, et al. Two-layer medium ultrasonic phased array total focusing method imaging based on sparse matrix［J］. Journal of Mechanical Engineering, 2017, 53(14):128-135.

[14] [14] WU Juncen, HU Hongwei, SONG Yongfeng, et al. Ultrasonic phased array phase shift migration imaging of irregular surface components using attenuation compensation and anti-aliasing technique［J］. NDT and E International, 2023, 133:102759.

[15] [15] FYLERIS T, JASINIENE. E. Comparative analysis of plane-wave imaging and the total focusing method in the reconstruction of complex geometrical surfaces ［J］. Surface Topography: Metrology and Properties, 2019, 7(3):035011.

[16] [16] MINEO C, CERNIGLIA D, MOHSENI E. Solving ultrasonic ray tracing in parts with multiple material layers through root-finding methods［J］. Ultrasonics, 2022, 124:106747.

[17] [17] PARK Y T, PAHK J K, KIM H. Method to optimize the placement of a single-element transducer for transcranial focused ultrasound［J］. Computer Methods and Programs in Biomedicine, 2019, 179(C):1-10.

[18] [18] GUAN Shanyue, WANG Xiaokai, HUA Lin, et al. Ultrasonic phased array inspection of aeroengine casing ring forgings using adaptive filtering and angle gain compensation algorithm［J］. Applied Acoustics, 2022, 195:1-15.