The Feasibility of Using Laser Doppler Vibrometer Measurements from a Passing Vehicle for Bridge Damage Detection
This paper investigates the feasibility of detecting local damage in a bridge using Laser Doppler Vibrometer (LDV) measurements taken from a vehicle as it passes over the bridge. Six LDVs are simulated numerically on a moving vehicle, collecting relative velocity data between the vehicle and the bri...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2018/9385171 |
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| _version_ | 1832549521709596672 |
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| author | Abdollah Malekjafarian Daniel Martinez Eugene J. OBrien |
| author_facet | Abdollah Malekjafarian Daniel Martinez Eugene J. OBrien |
| author_sort | Abdollah Malekjafarian |
| collection | DOAJ |
| description | This paper investigates the feasibility of detecting local damage in a bridge using Laser Doppler Vibrometer (LDV) measurements taken from a vehicle as it passes over the bridge. Six LDVs are simulated numerically on a moving vehicle, collecting relative velocity data between the vehicle and the bridge. It is shown that Instantaneous Curvature (IC) at a moving reference, which is the curvature of the bridge at an instant in time, is sensitive to local damage. The vehicle measures Rate of Instantaneous Curvature (RIC), defined as the first derivative of IC with respect to time. A moving average filter is found to reduce the effects of noise on the RIC data. A comparison of filtered RIC measurements in healthy and damaged bridges shows that local damage can be detected well with noise-free measurements and can still be detected in the presence of noise. |
| format | Article |
| id | doaj-art-7048ffd42ee3425aa40f60201b314473 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-7048ffd42ee3425aa40f60201b3144732025-02-03T06:11:04ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/93851719385171The Feasibility of Using Laser Doppler Vibrometer Measurements from a Passing Vehicle for Bridge Damage DetectionAbdollah Malekjafarian0Daniel Martinez1Eugene J. OBrien2School of Civil Engineering, University College Dublin, Dublin 4, IrelandSchool of Civil Engineering, University College Dublin, Dublin 4, IrelandSchool of Civil Engineering, University College Dublin, Dublin 4, IrelandThis paper investigates the feasibility of detecting local damage in a bridge using Laser Doppler Vibrometer (LDV) measurements taken from a vehicle as it passes over the bridge. Six LDVs are simulated numerically on a moving vehicle, collecting relative velocity data between the vehicle and the bridge. It is shown that Instantaneous Curvature (IC) at a moving reference, which is the curvature of the bridge at an instant in time, is sensitive to local damage. The vehicle measures Rate of Instantaneous Curvature (RIC), defined as the first derivative of IC with respect to time. A moving average filter is found to reduce the effects of noise on the RIC data. A comparison of filtered RIC measurements in healthy and damaged bridges shows that local damage can be detected well with noise-free measurements and can still be detected in the presence of noise.http://dx.doi.org/10.1155/2018/9385171 |
| spellingShingle | Abdollah Malekjafarian Daniel Martinez Eugene J. OBrien The Feasibility of Using Laser Doppler Vibrometer Measurements from a Passing Vehicle for Bridge Damage Detection Shock and Vibration |
| title | The Feasibility of Using Laser Doppler Vibrometer Measurements from a Passing Vehicle for Bridge Damage Detection |
| title_full | The Feasibility of Using Laser Doppler Vibrometer Measurements from a Passing Vehicle for Bridge Damage Detection |
| title_fullStr | The Feasibility of Using Laser Doppler Vibrometer Measurements from a Passing Vehicle for Bridge Damage Detection |
| title_full_unstemmed | The Feasibility of Using Laser Doppler Vibrometer Measurements from a Passing Vehicle for Bridge Damage Detection |
| title_short | The Feasibility of Using Laser Doppler Vibrometer Measurements from a Passing Vehicle for Bridge Damage Detection |
| title_sort | feasibility of using laser doppler vibrometer measurements from a passing vehicle for bridge damage detection |
| url | http://dx.doi.org/10.1155/2018/9385171 |
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