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Recent Progress on Distributed Structural Health Monitoring Research at NUAA

The Aeronautical Science Key Laboratory for Smart Materials and Structures Nanjing University of Aeronautics and Astronautics, 29 Yu Dao Street, Nanjing 210016, PR China, ysf{at}nuaa.edu.cn

Dakai Liang

The Aeronautical Science Key Laboratory for Smart Materials and Structures Nanjing University of Aeronautics and Astronautics, 29 Yu Dao Street, Nanjing 210016, PR China

Lihua Shi

The Aeronautical Science Key Laboratory for Smart Materials and Structures Nanjing University of Aeronautics and Astronautics, 29 Yu Dao Street, Nanjing 210016, PR China

Xia Zhao

The Aeronautical Science Key Laboratory for Smart Materials and Structures Nanjing University of Aeronautics and Astronautics, 29 Yu Dao Street, Nanjing 210016, PR China

Jian Wu

The Aeronautical Science Key Laboratory for Smart Materials and Structures Nanjing University of Aeronautics and Astronautics, 29 Yu Dao Street, Nanjing 210016, PR China

Gang Li

The Aeronautical Science Key Laboratory for Smart Materials and Structures Nanjing University of Aeronautics and Astronautics, 29 Yu Dao Street, Nanjing 210016, PR China

Lei Qiu

The Aeronautical Science Key Laboratory for Smart Materials and Structures Nanjing University of Aeronautics and Astronautics, 29 Yu Dao Street, Nanjing 210016, PR China

This study introduces recent research advances on the structural health monitoring (SHM) at Nanjing University of Aeronautics and Astronautics (NUAA). Distributed SHM technology for large-scale engineering structures is discussed. First, a hybrid wing box health monitoring evaluation system is presented. This evaluation system is developed to verify the piezoelectric sensor array-based active Lamb wave diagnostic method and the fiber Bragg grating sensor-based structural strain monitoring method. Second, distributed health monitoring technology based on the multi-agent system (MAS) technology is discussed. This research includes the individual agent design, the MAS-based SHM system architecture design, and three important aspects in designing the MAS-based SHM system. An evaluation case is presented in detail to show the advantages of the MAS-based SHM system. Finally, the study illustrates the motivation of the agents realized by a wireless sensor network. The developed wireless sensor nodes are also described.

Key Words: structural health monitoring • multi-agent technology • wireless sensor network • distributed system.

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