In-situ Structural Health Monitoring for High-Speed Trains on Beijing-Shanghai High-speed Railway
讲座名称：
In-situ Structural Health Monitoring for High-Speed Trains on Beijing-Shanghai High-speed Railway
讲座时间：
2015-07-01
讲座人：
苏众庆
形式：
校区：
兴庆校区
实践学分：
讲座内容：
讲座题目：In-situ Structural Health Monitoring for High-Speed Trains on Beijing-Shanghai High-speed Railway
基于主动导波的嵌入式结构健康监测技术及其在京沪高铁上的应用
讲座人：苏众庆
讲座时间：7月1日 10:00
讲座地点：交大科技园西五楼北楼四楼第一会议室
讲座摘要:Based on the team’s research efforts over the years, an in-situ structural health monitoring (SHM) technique taking advantage of guided elastic waves has been developed, and deployed via an online diagnosis system. The technique and the system were recently installed on China’s latest high-speed train model (CRH380CL) operated on Beijing−Shanghai High-Speed Railway (BSHSR), the world’s longest high-speed line constructed in a single phase. The system incorporated modularized components including active sensor networks, wave generation, data acquisition, signal processing, data fusion, and results presentation. The sensor network, inspired by a concept of “decentralized standard sensing”, was integrated into bogie frames during train final assembly, to generate and acquire guided ultrasonic waves, from which a wide array of signal features were extracted. Mock-up damage affixed to the bogie was identified quantitatively, and visualized in images. This in-situ testing has demonstrated the feasibility, effectiveness, sensitivity, and reliability of the developed SHM technique and system in real-world applications.
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