무선 MEMS 시스템을 이용한 구조물 식별

다국어 초록 (Multilingual Abstract)

The structural health monitoring has been gaining more importance in civil engineering areas such as earthquake and wind engineering. The use of health monitoring system can also provide tools for the validation of structural analytical model. However, only few structures such as historical buildings and some important long bridges have been instrumented with structural monitoring system due to high cost of installation, long and complicated installation of system wires. In this paper, the structural monitoring system based on cheap and wireless monitoring system is investigated. The use of advanced technology of micro-electro-mechanical system(MEMS) and wireless communication can reduce system cost and simplify the installation. Further the application of wireless MEMS system can provide enhanced system functionality and due to low noise densities. Identification results are compared to ones using data measured from traditional accelerometers and results indicate that the system identification using wireless MEMS system estimates system parameters accurately.

참고문헌 (Reference)

1 강경수, "유한요소모델에 기초한 3층 건물모델의 시스템 식별" 한국소음진동공학회 14 (14): 416-423, 2004

2 윤자걸, "서장교의 구조식별을 위한 가진실험 데이터분석" 한국소음진동공학회 14 (14): 923-929, 2004

3 Krüger, M., "Wireless Structural Health Monitoring Using MEMS" 293~295 : 625-634, 2005

4 Ljung, L., "System Identification Toolbox User’s Guide" Mathworks 2007

5 Kinawi, H., "Structural Health Monitoring Using the Semantic Wireless: a Novel Application for Wireless Networking" Proceedings of the 27th Annual IEEE Conference on Local Computer Networks 2002

6 Lin, R. M., "Structural Dynamics of Microsystems - Current State of Research and Future Directions" 20 : 1015-1043, 2006

7 Baruch, M., "Optimization Procedure to Correct Stiffness and Flexibility Matrices Using Vibration Tests" 16 (16): 1208-1210, 1978

8 Baruch, M., "Optimal Weighted Orthogonalization of Measured Modes" 16 (16): 346-351, 1978

9 Vittorio, S. A., "MicroElectroMechanical Systems (MEMS)" Cambridge Scientific Abstracts 1-11, 2001

10 Shinozuka, M., "MEMS-based Wireless Real-time Health Monitoring of Bridges" Proceedings of the 3rd International Conference on Earthquake Engineering 2003

11 Kang, K.-S., "Identification of Stiffness and Damping Matrix of Building Structures Using Modal Characteristics" 8 (8): 45-53, 2004

12 Staszewski, W., "Health Monitoring of Aerospace Structures: Smart Sensor Technologies and Signal Processing" John Wiley and Sons 2004

13 Obadat, M., "Full-scale Field Evaluation of Microelectromechanical System-based Biaxial Strain Transducer and Its Application in Fatigue Analysis" 16 (16): 100-107, 2003

14 Hierold, C., "From Micro- to Nanosystems: Mechanical Sensors Go Nano" 14 : S1-S11, 2004

15 Friswell, M. I., "Finite Element Model Updating in Structural Dyna-mics" Kluwer Academic Publishers 1995

16 Chopra, A. K., "Dynamics of Structures: Theory and Applications to Earthquake Engineering" Prentice Hall 2000

17 Lynch, J. P., "Design of piezoresistive MEMS-based Accele-rometer for Integration with Wireless Sensing Unit for Structural Monitoring" 16 (16): 108-114, 2003

18 Analog Devices, "ADXL103 Data Sheets"

19 Zhang, Y., "A Study of Wireless MEMS Accelerometers for Civil Infrastructure Monitoring" Lehigh University 2005