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VRIJE UNIVERSITEIT BRUSSELSCI EN T I AV INCERET ENE BRA SVRIJE UNIVERSITEIT BRUSSELFACULTEIT TOEGEPASTE WETENSCHAPPENVAKGROEP WERKTUIGKUNDEPleinlaan 2, B-1050 Brussels, BelgiumAPPLICATION OF FREQUENCY-DOMAIN SYSTEMIDENTIFICATION TECHNIQUES IN THE FIELD OFOPERATIONAL MODAL ANALYSISEli PARLOOJury:Prof. dr. ir. D. Lefeber, voorzitterProf. dr. ir. J. Vereecken, vice-voorzitterProf. dr. ir. P. Guillaume, promotorProf. dr. ir. M. Van Overmeire, copromotorProf. dr. ir. W. Heylen (KULeuven)Prof. dr. ir. G. De Roeck (KULeuven)Prof. dr. ir. J. Schoukens (VUB)Prof. dr. ir. H. Sol (VUB)Dr. ir. H. Van der Auweraer (LMS International)Dr. ir. P. VerbovenProefschrift ingediend tothet behalen van de academischegraad van doctor in detoegepaste wetenschappenMay 2003
Page 1 and 2: VRIJE UNIVERSITEIT BRUSSELSCI EN T
Page 6 and 7: c○ Vrije Universiteit Brussel - F
Page 11: vList of abbreviationsCMCCMFCMIFCOM
Page 15 and 16: Contentsix4.2.3 Sensitivity to erro
Page 17 and 18: Contentsxi8 Identification of damag
Page 19 and 20: Chapter 1IntroductionThis Chapter c
Page 21 and 22: 1.1. Research context 3note that pa
Page 23 and 24: 1.1. Research context 5modification
Page 25 and 26: 1.2. Focus and outline of the thesi
Page 27 and 28: 1.3. Organization of the text 9Moda
Page 29 and 30: Chapter 2Operational Modal Analysis
Page 31 and 32: 2.1. Introduction 13(a)(b)(c)(d)(e)
Page 33 and 34: 2.1. Introduction 15question is an
Page 35 and 36: 2.2. Frequency Domain Identificatio
Page 45 and 46: 2.3. Extension to output-only data
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2.3. Extension to output-only data
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2.4. Case study: stairway structure
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2.5. Conclusion 43niques - such as
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2.5. Conclusion 45ZYX(a)YZXY(b)(c)F
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2.6. Appendix: Modal decomposition
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Chapter 3Identification frommulti-p
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3.2. Non-stationary data 55some of
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3.3. Multi-patch mode shape re-scal
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3.3. Multi-patch mode shape re-scal
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3.4. Additional remarks 61Ψ [:,r]
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3.5. Experimental validation 63the
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3.5. Experimental validation 65(a)(
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3.5. Experimental validation 67(a)(
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3.5. Experimental validation 69−8
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3.5. Experimental validation 711614
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3.5. Experimental validation 73ZYX(
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3.5. Experimental validation 75ZYX(
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Chapter 4Sensitivity-basednormaliza
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4.1. Sensitivity of Modal Parameter
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4.1. Sensitivity of Modal Parameter
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4.2. Normalization of operational m
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4.3. Conclusions 99Table 4.2: Overv
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4.3. Conclusions 1010.10.08normaliz
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4.3. Conclusions 103tion experiment
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4.4. Appendix: Calculation of modal
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Chapter 5Application to real-life c
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5.1. Agricultural engineering appli
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5.2. Civil engineering application:
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5.3. Conclusions 12910.90.80.7mac v
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Chapter 6Force identificationThis C
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6.2. Source identification 133maliz
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6.2. Source identification 135the l
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6.2. Source identification 137a dia
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6.3. Experimental results 139Table
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6.3. Experimental results 141221.51
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6.3. Experimental results 1430.240.
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6.3. Experimental results 1450.70.6
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6.4. Conclusions 147procedure (as w
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6.4. Conclusions 1490.16normalized
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6.5. Appendix 1516.5 AppendixIn the
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Chapter 7Input-output andoutput-onl
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7.1. Introduction 155from the non-p
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7.1. Introduction 157damage feature
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7.1. Introduction 159structures or
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7.3. Sensitivity-based damage ident
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7.4. Damage identification methods
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7.4. Damage identification methods
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7.5. Experimental validation and co
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7.6. Application to output-only dat
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7.6. Application to output-only dat
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7.8. Conclusion 217technique (intro
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Chapter 8Identification of damage i
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8.1. Introduction 221Figure 8.1: In
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8.2. Assessment of test setup varia
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8.2. Assessment of test setup varia
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8.3. Dynamic loading setup 227LEVEL
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8.4. Identification of the damage 2
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8.5. Conclusions 2398.5 Conclusions
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Chapter 9Non-linear structuralmodif
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9.2. Approximation of non-linear pa
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9.3. Applications 251with their unk
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9.4. Simulation results 2539.4 Simu
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9.4. Simulation results 25516401638
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9.4. Simulation results 25798097597
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9.4. Simulation results 25943error
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9.4. Simulation results 261Table 9.
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9.4. Simulation results 26332normal
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9.5. Experimental results 2651050sc
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9.5. Experimental results 26732norm
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9.5. Experimental results 269(a)(b)
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9.6. Conclusions 271100−10scaling
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9.6. Conclusions 273tational burden
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Chapter 10Conclusions10.1 Summary a
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10.1. Summary and main contribution
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10.2. Future work 279variable traff
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BibliographyAbdelghani, M., Goursat
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Bibliography 283Dobson, B. and Ride
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Bibliography 285Hermans, L., Van de
Page 305 and 306:
Bibliography 287Parloo, E., Guillau
Page 307 and 308:
Bibliography 289Silva, J., Maia, N.
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