2006
DOI: 10.1061/(asce)0733-9445(2006)132:2(304)
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Identification of the Location and Level of Damage in Multiple-Bolted-Joint Structures by PZT Actuator-Sensors

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Cited by 35 publications
(24 citation statements)
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“…at which the bifurcation is induced for deterministic system can be applied into equations (14) and (15) to describe the local dynamics around the bifurcation point as…”
Section: Declaration Of Conflicting Interestsmentioning
confidence: 99%
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“…at which the bifurcation is induced for deterministic system can be applied into equations (14) and (15) to describe the local dynamics around the bifurcation point as…”
Section: Declaration Of Conflicting Interestsmentioning
confidence: 99%
“…Furthermore, by comparing the damage-induced changes of piezoelectric impedance measurements with those obtained from a reliable baseline model, the location and severity of damage can be identified by an inverse analysis. 14,[21][22][23] However, the number of available independent impedance measurement data sets is generally far smaller than the number of degrees-of-freedom required for characterizing the damage from the corresponding baseline model. As a result, the inverse problem for damage identification is often highly underdetermined, 23,24 which severely undermines damage identification performance since the inverse solution may become unstable and extremely sensitive to even small amount of error in the data, especially in practical implementations where impedance changes induced by small damages may be easily buried in noise.…”
Section: Introductionmentioning
confidence: 99%
“…Visual inspections will often also be needed in conjunction with the detecting technologies, although these are known to be unreliable (e.g., Lea and Middleton 2002). Ritdumrongkul and Fujino (2006) use piezoceramic actuator sensors and a spectral-element model of a simple bolted aluminum beam to see if damage could be detected in a laboratory environment. Bolts were arbitrarily loosened so that damage could be simulated.…”
Section: Specific Damage Scenariosmentioning
confidence: 99%
“…Rutherford et al utilize nonlinear feature identifications based on self-sensing impedance measurements for jointed portal frame structure structural health assessment [11]. Ritdumrongkul and Park present the use of a PZT actuator-sensor and the impedancebased monitoring techniques in conjunction with numerical model-based methodology in structural health monitoring to quantitatively detect damage of bolted joint of two aluminum beams [12][13][14][15]. Yang et al use the Lamb wave propagation to monitor the loosening of bolts in a space thermal protection panel [16].…”
Section: Introductionmentioning
confidence: 99%