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Determination of Optimal Accelerometer Locations for Bridges using Frequency-Domain Hankel Matrix
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 Title & Authors
Determination of Optimal Accelerometer Locations for Bridges using Frequency-Domain Hankel Matrix
Kang, Sungheon; Shin, Soobong;
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 Abstract
A new algorithm for determining optimal accelerometer locations is proposed by using a frequency-domain Hankel matrix which is much simpler to construct than a time-domain Hankel matrix. The algorithm was examined through simulation studies by comparing the outcomes with those from other available methods. To compare and analyze the results from different methods, a dynamic analysis was carried out under seismic excitation and acceleration data were obtained at the selected optimal sensor locations. Vibrational amplitudes at the selected sensor locations were determined and those of all the other degrees of freedom were determined by using a spline function. MAC index of each method was calculated and compared to look at which method could determine more effective locations of accelerometers. The proposed frequency-domain Hankel matrix could determine reasonable selection of accelerometer locations compared with the others.
 Keywords
Optimal sensor location;Frequency-domain Hankel matrix;Spline function;
 Language
Korean
 Cited by
 References
1.
Bayard, D. S., Fred, Y. H., and Deirdre, R. M. (1988), Optimal Experiment Design for Identification of Large Space Structures, Automatica, 24(3), 357-364. crossref(new window)

2.
Cherng, A. P. (2003), Optimal Sensor Placement for Modal Parameter Identification using Signal Subspace Correlation Techniques, Mechanical Systems and Signal Processing, 17(2), 361-378. crossref(new window)

3.
Gawronski, W., and Lim, K. B. (1996), Balanced Actuator and Sensor Placement for Flexible Structures, INT. J. Control, 65(1), 131-145. crossref(new window)

4.
Kang, S. (2015), Development of a Method for Dttermining Optimal Accelerometer Locations using Frequency-Domain Hankel Matrix, Master Degree Thesis, Inha University, Incheon, 1-10(in Korean).

5.
Korea Meteorological Administration (2015), Domestic earthquake trends, http://www.kma.go.kr/(in Korean).

6.
Kwon, S. J. (2006), Determination of Optimal Accelerometer Locations in Frequency Domain and Time Domain with Verification by SI Methods, Ph. D Degree Thesis, Inha University, Incheon, 4-14(in Korean).

7.
Kwon, S. J., and Shin, S. (2006), Determination of Optimal Accelerometer Locations using Mode-Shape Sensitivity, J. of the Earthquake Engineering Society of Korea, 10(6), 29-36(in Korean). crossref(new window)

8.
Li, Y. Y., and Yam, L. H. (2001), Sensitivity Analyses of Sensor Loactions for Vibration Control and Damage Detection of Thin-Plate Systems, J. of Sound and Vibration, 240(4), 623-636. crossref(new window)

9.
Liu, C., and Tasker, F. (1996), Sensor Placement for Time-Domain Modal Parameter Estimation, J. of Guidance, Control, and Dynamics, 19(6), 1349-1356. crossref(new window)

10.
Meo, M., and Zumpano, G. (2005), On the Optimal Sensor Placement Techniques for a Bridge Structure, Engineering Structures, 27(10), 1488-1497. crossref(new window)

11.
Ministry of Public Safety and Security (2015), Guideline for Earthquake Acceleration Measuring Instrument, Ministry of Public Safety and Security Bulletin No. 2015-1(in Korean).

12.
Penny, J. E. T., Friswell, M. I., and Garvey, S. D. (1994), Automatic Choice of Measurement Loactions for Dynamic Testing, AIAA J., 32(2), 407-414. crossref(new window)

13.
Zhang, L., Brincker, R., and Andersen, P. (2001), Modal indicators for Operational Modal Identification, 19th International Modal Analysis Conference (IMAC), Kissimmee, Florida.