基于超声导波的车用氢瓶在线检验技术研究  

Research on online inspection of vehicle hydrogen cylinders based on ultrasonic guided wave technology

作　　者：袁奕雯[1] YUAN Yiwen(Shanghai Special Equipment and Inspection Technology Institute,Shanghai 200062,China)

机构地区：[1]上海市特种设备监督检验技术研究院,上海200062

出　　处：《压力容器》2024年第4期9-15,共7页Pressure Vessel Technology

基　　金：国家重点研发计划项目(2021YFB4000800);国家市场监督管理总局科技人才计划(QNBJ202318)。

摘　　要：在役车用氢瓶的安全性能直接影响到氢能产业交通应用场景的可行性。传统拆卸离线检验模式制约了产业发展,结合前期研究成果,创新车用气瓶定期检验策略,通过定位损伤引导判断是否应进行拆卸离线验证气瓶安全性能。本文开展超声导波技术对车用氢瓶缺陷的定位算法研究及装置开发,进而攻克金属基碳纤维复合材料制气瓶噪声干扰大、信噪比高等不利因素,有效提取损伤信号,实现高精度损伤定位,经对极端冲量损伤、表面裂纹损伤后的车用氢瓶进行试验,验证其损伤定位误差可达到5%以内,对在役车用氢瓶安全性能评估具有非常重要的应用前景。The safety performance of in-service hydrogen cylinders for vehicle directly affects the feasibility of hydrogen energy transportation application scenario directly.The traditional dismantling offline inspection mode restricts the industry development.In combination with the previous research achievements,the vehicle cylinder inspection strategy should be innovated to guide to judge whether to conduct dismantling offline verification of safety performance of the cylinder or not by locating the damage.The research of algorithm for locating the defects of vehicle hydrogen cylinders and device development were carried out using the ultrasonic guided wave technology,and the unfavorable factors such as big interference noise and high signal-to-noise ratio of metal base carbon fiber composite materials were tackled,the damage signal was effectively extracted,and high precision damage location was achieved.Experiments on vehicle hydrogen cylinders with extreme impulse damage and surface crack have verified that the damage locating error can be within 5%,which has a very important application prospect for safety performance evaluation of in-service vehicle hydrogen cylinders.

关 键 词：车用气瓶 复合材料 导波技术 缺陷定位 

分 类 号：TH49[机械工程—机械制造及自动化] TH138.22