Optimum Sensor Placement for StructuralDamage Detection
Publication: Journal of Engineering Mechanics
Volume 126, Issue 11
Abstract
A method of optimizing sensor locations and detecting damage in a structure using the collected information is presented in this paper. Unlike most methods found in the literature, the sensor locations are prioritized according to their ability to localize structural damage based on the eigenvector sensitivity method. This is in line with the requirements for structural damage localization. Only a small subset of the total structural degrees-of-freedom is instrumented, and the incomplete modes yielded from these optimized sensor locations are used to localize structural damage. Numerical example and test results show that this approach is effective for detecting structural damage directly using optimum and incomplete test modes.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Alvin, K. F. ( 1997). “Finite element model update via Bayesian estimation and minimization of dynamic residuals.” AIAA J., 35(5), 879–886.
2.
Baruch, M., and Bar Itzhack, I. Y. ( 1978). “Optimum weighted orthogonalization of measured modes.” AIAA J., 16(4), 346–351.
3.
Berman, A., and Flannelly, W. G. ( 1971). “Theory of incomplete models of dynamic structures.” AIAA J., 9(8), 1481–1487.
4.
Berman, A., and Nagy, E. J. ( 1983). “Improvements of a large analytical model using test data.” AIAA J., 21(8), 1168–1173.
5.
Cawley, P., and Adams, R. D. ( 1979). “The location of defects in structures from measurements of natural frequencies.” J. Strain Anal., 14(2), 49–57.
6.
Cobb, R. G., and Liebst, B. S. ( 1996). “Sensor location prioritization and structural damage localization using minimal sensor information.” AIAA J., 35(2), 369–374.
7.
Ewins, D. J. ( 1984). Modal testing: Theory and practice, Research Studies Press Ltd., Wiley, New York.
8.
Farhat, C., and Hemez, F. M. ( 1993). “Updating finite element dynamic models using an element-by-element sensitivity methodology.” AIAA J., 31(9), 1702–1711.
9.
Farrar, C. R., and Cone, K. M. ( 1995). “Vibration testing of the I-40 bridge before and after the introduction of damage.” Proc., 13th Int. Modal Anal. Conf., Society of Experimental Mechanics, Honolulu, 1, 203–209.
10.
Fox, R. L., and Kapoor, M. P. ( 1988). “Rates of change of eigenvalues and eigenvectors.” AIAA J., 6(12), 2426–2429.
11.
Friswell, M. I., Penny, G. E. T., and Wilson, D. A. L. ( 1994). “Using vibration data and statistical measures to locate damage in structures.” Int. J. Analytical and Experimental Modal Anal., 9(4), 239–254.
12.
Hemez, F. M., and Farhat, C. ( 1994). “An energy based optimum sensor placement criterion and its application to structural damage detection.” Proc., 12th Int. Modal Anal. Conf., Society of Experimental Mechanics, Honolulu, 1568–1575.
13.
Kabe, A. M. ( 1985). “Stiffness matrix adjustment using mode data.” AIAA J., 23(9), 1431–1436.
14.
Kammer, D. C. ( 1988). “Optimum approximation for residual stiffness in linear system identification.” AIAA J., 26(1), 104–112.
15.
Kammer, D. C. ( 1991). “Sensor placement for on orbit modal identification and correlation of large space structures.” AIAA J. Guidance, Control, and Dyn., 14(2), 251–259.
16.
Law, S. S., Shi, Z. Y., and Zhang, L. M. (1998). “Structural damage detection from incomplete and noisy modal data.”J. Engrg. Mech., ASCE, 124(11), 1280–1288.
17.
Levine-West, M., Milman, M., and Kissil, A. ( 1996). “Mode shape expansion techniques for prediction: Experimental evaluation.” AIAA J., 34(4), 821–829.
18.
Lim, T. W. ( 1991). “Sensor placement for on-orbit modal identification.” Proc., 32nd AIAA/ASME/ASCE/AHS/ASC Struct., Struct. Dyn., and Mat. Conf., American Institute of Aeronautics and Astronautics, Reston, Va.
19.
Lim, T. W., and Kashangaki, T. A. L. ( 1994). “Structural damage detection of space truss structures using best achievable eigenvectors.” AIAA J., 32(5), 1049–1057.
20.
Messina, A., Williams, E. J., and Contursi, T. ( 1998). “Structural damage detection by a sensitivity and statistical-based method.” J. Sound and Vib., 216(5), 791–808.
21.
Pandey, A. K., and Biswas, M. ( 1995). “Experimental verification of flexibility difference method for locating damage in structures.” J. Sound and Vib., 184(2), 311–328.
22.
Shi, Z. Y., Ding, X. H., and Gu, H. Z. ( 1995). “A new model reduction and expansion method.” Proc., Int. Conf. on Struct. Dyn., Vib., Noise and Control, Hong Kong Polytechnic University, Hong Kong, 847–852.
23.
Shi, Z. Y., Law, S. S., and Zhang, L. M. ( 1998). “Structural damage localization from modal strain energy change.” J. Sound and Vib., 218(5), 825–844.
24.
Shi, Z. Y., Law, S. S., and Zhang, L. M. (1999). “Damage detection by directly using incomplete mode shapes.”J. Engrg. Mech., ASCE, 126(6), 656–660.
25.
Sidhu, J., and Ewins, D. J. ( 1984). “Correlation of finite and modal test studies of a practical structure.” Proc., 2nd Int. Modal Anal. Conf., 756–762.
26.
Udwadia, F. E., and Garba, J. A. ( 1985). “Optimal sensor locations for structural identification.” Proc., JPL Workshop on Identification and Control of Flexible Space Struct., 247–261.
27.
Zimmerman, D. C., and Kaouk, M. ( 1994). “Structural damage detection using a minimum rank update theory.” J. Vib. and Acoustics, 116(2), 222–231.
28.
Zhang, L. M., Zhang, C. N., et al. ( 1988). Dynamic test and analysis system DTAS-DSA user manual, Nanjing University of Aeronautics and Astronautics, Nanjing, China.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 126 • Issue 11 • November 2000
Pages: 1173 - 1179
History
Received: May 24, 1999
Published online: Nov 1, 2000
Published in print: Nov 2000
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.