Sensitivity of Parameter Changes in Structural Damage Detection
Structural damage detection by nondestructive methods is highly desirable. Changes in modal parameters such as frequency, damping, and mode shape are particularly inviting. Evidence is presented here that reveals that static deflection can, in many cases, be a more sensitive predictor of structural...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
1997-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.3233/SAV-1997-4103 |
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| _version_ | 1849683115788730368 |
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| author | C. H. Jenkins L. Kjerengtroen H. Oestensen |
| author_facet | C. H. Jenkins L. Kjerengtroen H. Oestensen |
| author_sort | C. H. Jenkins |
| collection | DOAJ |
| description | Structural damage detection by nondestructive methods is highly desirable. Changes in modal parameters such as frequency, damping, and mode shape are particularly inviting. Evidence is presented here that reveals that static deflection can, in many cases, be a more sensitive predictor of structural damage than frequency. The reasons for this are illuminated within, and hinge on very fundamental issues about the very nature of structural response. Furthermore, static deflection measurements are often easier to make, with higher levels of accuracy than dynamic measurements. Comparisons are made between theoretical models and experimental results for simple structures, with extensions given to more complex structures. |
| format | Article |
| id | doaj-art-d1b334ebc87e4b1eb97d7f084405f8d2 |
| institution | DOAJ |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 1997-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-d1b334ebc87e4b1eb97d7f084405f8d22025-08-20T03:23:59ZengWileyShock and Vibration1070-96221875-92031997-01-0141273710.3233/SAV-1997-4103Sensitivity of Parameter Changes in Structural Damage DetectionC. H. Jenkins0L. Kjerengtroen1H. Oestensen2Mechanical Engineering Department, South Dakota School of Mines and Technology, Rapid City, SD 57701, USAMechanical Engineering Department, South Dakota School of Mines and Technology, Rapid City, SD 57701, USAMechanical Engineering Department, South Dakota School of Mines and Technology, Rapid City, SD 57701, USAStructural damage detection by nondestructive methods is highly desirable. Changes in modal parameters such as frequency, damping, and mode shape are particularly inviting. Evidence is presented here that reveals that static deflection can, in many cases, be a more sensitive predictor of structural damage than frequency. The reasons for this are illuminated within, and hinge on very fundamental issues about the very nature of structural response. Furthermore, static deflection measurements are often easier to make, with higher levels of accuracy than dynamic measurements. Comparisons are made between theoretical models and experimental results for simple structures, with extensions given to more complex structures.http://dx.doi.org/10.3233/SAV-1997-4103 |
| spellingShingle | C. H. Jenkins L. Kjerengtroen H. Oestensen Sensitivity of Parameter Changes in Structural Damage Detection Shock and Vibration |
| title | Sensitivity of Parameter Changes in Structural Damage Detection |
| title_full | Sensitivity of Parameter Changes in Structural Damage Detection |
| title_fullStr | Sensitivity of Parameter Changes in Structural Damage Detection |
| title_full_unstemmed | Sensitivity of Parameter Changes in Structural Damage Detection |
| title_short | Sensitivity of Parameter Changes in Structural Damage Detection |
| title_sort | sensitivity of parameter changes in structural damage detection |
| url | http://dx.doi.org/10.3233/SAV-1997-4103 |
| work_keys_str_mv | AT chjenkins sensitivityofparameterchangesinstructuraldamagedetection AT lkjerengtroen sensitivityofparameterchangesinstructuraldamagedetection AT hoestensen sensitivityofparameterchangesinstructuraldamagedetection |