基于RFID微带天线的泵车臂架裂纹监测  

Crack Monitoring of Truck-mounted Con crete Pump Boom Based on RFID Micro strip Antenna

作　　者：马洪锋 陈鑫 刘忠振 Ma Hongfeng;Chen Xin;Liu Zhongzhen

机构地区：[1]江苏徐工工程机械研究院有限公司 [2]徐工集团高端工程机械智能制造全国重点实验室

出　　处：《工程机械》2024年第10期61-67,I0019,共8页Construction Machinery and Equipment

基　　金：基于FRID技术的工程机械结构健康监测与预警方法研究(BK20211049)。

摘　　要：臂架是混凝土泵车的重要支撑机构,针对其疲劳问题开展裂纹监测研究有助于提升整车作业安全性及稳定性。基于无线射频识别(RFID)的侧馈式微带天线技术,对臂架结构关键部位进行裂纹监测。分析微带天线的设计原理及其与裂纹之间的作用机理。利用HFSS软件研究不同裂纹长度、宽度和深度对谐振频率的影响,通过试验对仿真结果进行验证。结果表明,设计的微带天线能够精准感知金属表面裂纹的变化。因此,RFID微带天线适用于泵车臂架表面裂纹的健康监测。The boom is an important support mecha nism of the truck-mounted concrete pump,and for its fatigue problem,crack monitor ing research can help to improve the overall operation safety and stability.Based on side fed microstrip antenna technology of wireless radio frequency identification(RFID),crack monitoring is carried out on key parts of the boom structure.The design principle of the microstrip antenna and its action mechanism with cracks are analyzed.The software HFSS is used to study the influence of differ ent crack lengths,widths and depths on the resonant frequency,and the simulation results are verified through tests.The results show that the designed microstrip antenna can ac curately sense the changes in metal surface cracks.Therefore,the RFID microstrip antenna is applicable to health monitoring of surface cracks on the truck-mounted concrete pump boom.

关 键 词：泵车臂架 射频识别(RFID) 微带天线 表面裂纹 结构健康监测 

分 类 号：TU646[建筑科学—建筑技术科学]