| 李佳,卢今,陈振华,李泽,卢超.蜂窝夹层复材板超声兰姆波成像检测技术[J].电子测量与仪器学报,2025,39(9):215-223 |
| 蜂窝夹层复材板超声兰姆波成像检测技术 |
| Study on ultrasonic lamb wave imaging testing technology forhoneycomb sandwich composite panels |
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| DOI： |
| 中文关键词: 非线性超声检测 兰姆波 蜂窝夹层复合材料板 成像算法 缺陷因子 |
| 英文关键词:non-linear ultrasonic lamb wave honeycomb sandwich composite panels imaging algorithm defect factor |
| 基金项目:国家自然科学基金（12464059）、江西省重点研发项目（20212BBE51006）资助 |
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| Author | Institution |
| Li Jia | AECC Commercial Aircraft Engine Co., Ltd., Shanghai 201306, China |
| Lu Jin | 2.CRRC Braking System Co., Ltd., Qingdao 266031,China;
3.Key Laboratory of Nondestructive Testing of Ministry of Education, Nanchang Hangkong University, Nanchang 330063, China |
| Chen Zhenhua | Key Laboratory of Nondestructive Testing of Ministry of Education, Nanchang Hangkong University, Nanchang 330063, China |
| Li Ze | AECC Commercial Aircraft Engine Co., Ltd., Shanghai 201306, China |
| Lu Chao | Key Laboratory of Nondestructive Testing of Ministry of Education, Nanchang Hangkong University, Nanchang 330063, China |
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| 中文摘要: |
| 飞机蜂窝夹层复合材料板具有结构复杂、尺寸大、缺陷类型多的特点，常规超声无损检测技术存在效率低、精度差的问题。提出蜂窝夹层复材板的非线性超声兰姆波成像检测技术，将兰姆波大范围传播及缺陷的非线性响应敏感性强的优势相结合以提高蜂窝夹层复材板粘接缺陷的无损检测能力。首先，分析板中兰姆波传播特性，基于波传播的各向异性特征设计探头布置方法并定义缺陷因子；其次，设计和优化成像算法以提高蜂窝夹层复材板内部缺陷的非线性兰姆波成像效果；最后，参照空耦C扫描及金相观察分析非线性兰姆波检测图像对板中缺陷的显示能力。研究结果表明，非线性超声兰姆波检测图像与空气耦合超声C扫描图像相比具有较差的分辨率，无法显示蜂窝细节，但能够显示蜂窝夹层复材板的脱粘和弱粘接缺陷区域，并兼顾高效率的优势，其同侧收发探头布置方式提高了对检测环境的适应性，可用于在役蜂窝夹层复材板粘结缺陷的无损检测。 |
| 英文摘要: |
| Aircraft honeycomb sandwich composite panel has the characteristics of complex structure, large size and many types of defects, and the conventional ultrasonic nondestructive testing technology has the problems of low efficiency and poor accuracy. In the study, nonlinear ultrasonic Lamb wave imaging technology for honeycomb sandwich composites is proposed, which combines the advantages of large range propagation of Lamb waves and strong sensitivity of nonlinear response of defects to improve the non-destructive testing ability of honeycomb sandwich composites. Firstly, the propagation characteristics of Lamb waves in the panel are analyzed, and the probe arrangement method is designed and the defect factor is defined based on the anisotropic characteristics of wave propagation. Secondly, the imaging algorithm is designed and optimized to improve the nonlinear Lamb wave imaging effect of the defects in the honeycomb sandwich composite panel. Finally, the ability of nonlinear Lamb wave detection image to display the defects in the panel is analyzed by referring to the air-coupled C-scan and metallographic observation. The results indicate that the nonlinear ultrasonic Lamb wave image has poor resolution compared with the air-coupled ultrasonic C-scan image, which cannot show the honeycomb details. Nevertheless, the debonding and weak bonding defect areas of honeycomb sandwich composite panel can be displayed by the nonlinear ultrasonic Lamb wave testing, and it also possesses the advantages of high efficiency and same-side transceiver probe arrangement which improves the adaptability to the detection environment. Thus, it can be used for the non-destructive detection of bonding defects of honeycomb sandwich composite panels in service. |
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