Journal of Systems Engineering and Electronics ›› 2018, Vol. 29 ›› Issue (4): 873-880.doi: 10.21629/JSEE.2018.04.22

• Reliability • Previous Articles    

Application of deep autoencoder model for structural condition monitoring

Chathurdara Sri Nadith PATHIRAGE1(), Jun LI2(), Ling LI1,*(), Hong HAO2(), Wanquan LIU1()   

  1. 1 Department of Computing, Curtin University, Perth WA 6102, Australia
    2 Centre for Infrastructural Monitoring and Protection, Curtin University, Perth WA 6102, Australia
  • Received:2017-01-03 Online:2018-08-01 Published:2018-08-30
  • Contact: Ling LI E-mail:c.nadithpa@postgrad.curtin.edu.au;junli@curtin.edu.au;L.Li@curtin.edu.au;hong.hao@curtin.edu.au;W.Liu@curtin.edu.au
  • About author:PATHIRAGE Chathurdara Sri Nadith was born in 1987. He received his B.S. degree in computer science in 2009 and is currently stduying for his Ph.D. degree in the Department of Computing, Curtin University, Australia. He worked as a specialist software engineer at London Stock Exchange group. His research interests lie in the field of artificial intelligence in computer vision, concepts of human visual perception via combined intellect of image processing, sparse sensing and deep learning. E-mail: c.nadithpa@postgrad.curtin.edu.au|LI Jun was born in 1984. He received his Ph.D. degree from Hong Kong Polytechnic University in 2012. He is currently a senior lecturer in Department of Civil Engineering/Centre for Infrastructural Monitoring and Protection at Curtin University. His research interests include structural health monitoring and signal processing techniques. E-mail: junli@curtin.edu.au|LI Ling was born in 1965. She obtained her B.S. degree in computer science from Sichuan University, China, and Ph.D. degree in computer engineering from Nanyang Technological University, Singapore. She is now an associate professor in the Department of Computing at Curtin University in Australia. Her research interests are mainly in computer vision and graphics, and artificially intelligent beings. E-mail: L.Li@curtin.edu.au|HAO Hong was born in 1962. He received his B.E. degree from Tianjin University, China, and Ph.D. degree from the University of California at Berkeley. He is a john curtin distinguished professor and the director of Centre for Infrastructural Monitoring and Protection at Curtin University, Australia. His research interests include earthquake engineering, blast engineering and structural condition monitoring. E-mail: hong.hao@curtin.edu.au|LIU Wanquan was born in 1965. He received his B.S. degree in applied mathematics from Qufu Normal University, China, in 1985, M.S. degree in control theory and operation research from Chinese Academy of Sciences in 1988, and the Ph.D. degree in electrical engineering from Shanghai Jiaotong University, in 1993. He once held the ARC fellowship, U2000 fellowship and JSPS fellowship and attracted research funds from different resources over 2.4 million Australian dollars. He is currently an associate professor in the Department of Computing at Curtin University and is in editorial board for nine international journals. His current research interests include large-scale pattern recognition, signal processing, machine learning, and control systems. E-mail: W.Liu@curtin.edu.au
  • Supported by:
    the Australian Research Council;This work was supported by the Australian Research Council

Abstract:

Damage detection in structures is performed via vibration based structural identification. Modal information, such as frequencies and mode shapes, are widely used for structural damage detection to indicate the health conditions of civil structures. The deep learning algorithm that works on a multiple layer neural network model termed as deep autoencoder is proposed to learn the relationship between the modal information and structural stiffness parameters. This is achieved via dimension reduction of the modal information feature and a non-linear regression against the structural stiffness parameters. Numerical tests on a symmetrical steel frame model are conducted to generate the data for the training and validation, and to demonstrate the efficiency of the proposed approach for vibration based structural damage detection.

Key words: auto encoder, non-linear regression, deep auto encoder model, damage identification, vibration, structural health monitoring