报告题目:Structural Health Monitoring of Civil Engineering Structures
报 告 人:Professor Hua-Peng Chen (陈华鹏)
报告时间:2018年3月8日(周四)10:00
报告地点:18-602
报告摘要:The vibration-based damage identification methods show great promise, in particular in the application to remote damage identification for large engineering structures. The dynamic perturbation method overcomes some limitations in the most existing methods. Such method is based on the exact relationship between the change in stiffness due to damage in a structure and the vibration modal data of the damaged structure. Such method can directly adopt the incomplete modal measurements for damage identification, without requiring model reduction or mode shape expansion techniques. Only limited number of vibration modal data measurements with uncertainty are sufficient to identify correctly structural damage, which is potentially useful for large engineering structures. In the inverse predictions of structural damage using the method, the system of governing equations may be ill-conditioned. Thus, a regularisation algorithm can be implemented in the method to provide stable solutions for the damage indicators. The dynamic perturbation method presents a great potential to applications for effective damage identification in complex structures.
主讲人简介:陈华鹏教授于1998年获英国格拉斯哥大学结构工程博士, 是英国格林威治大学土木工程讲座教授,创新与智能结构研究中心主任。长期从事结构健康监测、结构可靠度与性能评估等方面研究,主持包括英国研究理事会、皇家工程院等资助科研项目20余项,发表160多篇国际期刊和会议论文,是英国土木工程师学会会士(Fellow),高等教育学会会士,特许工程师。