報告題目:Structural Health Monitoring and Its Application to Reliability Assessment
報告人:Fumio KOJIMA(Graduate School of System Informatics,Kobe University)
報告時間:2015年10月20日15:00
報告地點:國家重點實驗室會議室(9-506)
主辦單位:機械結構力學及控制國家重點實驗室 航空宇航學院 國際交流與合作處 校科協
Abstract:
Structural health monitoring (SHM) is a key component for keeping safety operation of large-scale artifacts such as airplane, bridge, power plants, underground gas pipe etc. Severe accidents in such artifacts have been often caused by variety of material degradations due to the long-term service of structured materials. SHM plays an essential role in preventing catastrophic events at the course of material aging. It involves the broad concept of assessing ongoing and in-service performance of structures using variety of measurements. Those elements include sensors in structures, data acquisition, data management, data interpretation, diagnosis, etc. In the first part of this talk, typical case studies for critical damages are overviewed and I will discuss how SHM for structural integrity could work. Secondly, several efforts on practical implementations of SHM are demonstrated using various monitoring techniques, such as thermal tomography, electromagnetic nondestructive testing, and ultrasonic testing. The final part of this talk is devoted to the recent critical issues on SHM associated with the reliability assessment for post Fukushima’s era.
Bibliography:
Dr. Fumio Kojima received the Doctor of Engineering from Kyoto University in 1985. He was a staff scientist at Institute of Computer Applications in Science and Engineering (ICASE), NASA Langley Research Center, Hampton, Virginia during 1986-90. In 1990, he was an assistant professor at Research Center in Applied Mathematics (RIMS) in the University of Southern California. In 1991 he was an associate professor at the Department of Mechanical Engineering, Osaka Institute of Technology and became a professor in 1994. In 1999, he joined Graduate School of Science and Technology, Kobe University. He is currently a professor at Department of System Science in Graduate School of System Informatics, Kobe University. He was also scientific consultant at ICASE during 1990-92 and had visiting positions in North Carolina State University (CRSC), University of Minnesota (IMA), Chinese University of Hong Kong, Xian Jiaotong University, etc. He has been a scientific advisor for the Institute of Applied Mechanics at Vietnamese Academy of Science and Technology since 2005. He has been also an associate editor of Electrical Journal of Advanced Maintenance (E-JAM) since 2009, a president of the Institute of Systems, Control and Information Engineers (ISCIE) during 2013 to 2014 and a fellow of Japan Society of Mechanical Engineers.