Vibration based damage detection of a beam-type structure using noise suppression method

Baneen, Ummul; Kinkaid, Nathan; Guivant, José; Herszberg, Israel

doi:10.1016/j.jsv.2011.12.018

Cited by 23 publications

(10 citation statements)

References 15 publications

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“…To date, most damage detection methods have been implemented on structural vibrational data [3,22,23]. But traditional data in the frequency domain, e.g., frequencies and mode shapes, are susceptible to measurement noises [24,25] and environmental factors [26]. Modern techniques using elastic wave propagation with the aid of the spectral finite element method have also been investigated for the purpose of structural health monitoring [27,28].…”

Section: Introductionmentioning

confidence: 99%

Statics-Based Model-Free Damage Detection under Uncertainties Using Modal Interval Analysis

Fang

Huang

2020

Materials

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Deterministic damage detection methods often fail in practical applications due to ever-present uncertainties. Moreover, vibration-based model updating strategies are easily affected by measurement noises and could encounter ill-conditioning problems during inverse solutions. On this account, a model-free method has been proposed combining modal interval analyses with static measurements. Structural geometrical dimensions, material parameters and external loads are expressed by interval variables representing uncertainties. Mechanical formulas for static responses are then extended to their interval forms, which are subsequently solved using classic interval and modal interval analyses. The analytical interval envelopes of static responses such as deflections and strains are defined by the interval solutions, and damage can be detected when the measured responses intersect the envelopes. By this approach, potential damage can be found in a fast and rough way without any inverse solution process such as model updating. The proposed method has been verified against both numerical and experimental reinforced concrete beams whose strains were taken as the desirable responses. It was found that the strain envelopes provided by modal interval analysis were narrower than those by classic interval analysis. Modal interval analysis effectively avoids the phenomenon of interval overestimation. In addition, the intersection point also identifies the current external load, providing a loading alarm for structures.

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Section: Introductionmentioning

confidence: 99%

Statics-Based Model-Free Damage Detection under Uncertainties Using Modal Interval Analysis

Fang

Huang

2020

Materials

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“…In such areas as physics, chemistry, and biology it has already been proved that random influences play a very significant role in the behavior of dynamic systems [11][12]. External noise can cause not only fluctuations in the properties of dynamic systems, but also a qualitative modification of their modes [13][14][15]. Using the example of the Anishchenko-Astakhov oscillator, T.E.…”

Section: Introductionmentioning

confidence: 99%

Contact Interaction of Plates and Beams Under the Influence of White Noise

2018

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“…ȼ ɬɚɤɢɯ ɨɛɥɚɫɬɹɯ, ɤɚɤ ɮɢɡɢɤɚ, ɯɢɦɢɹ, ɛɢɨɥɨɝɢɹ, ɭɠɟ ɩɨɤɚɡɚɧɨ, ɱɬɨ ɫɥɭɱɚɣɧɵɟ ɜɨɡɞɟɣ-ɫɬɜɢɹ ɢɝɪɚɸɬ ɜɟɫɶɦɚ ɫɭɳɟɫɬɜɟɧɧɭɸ ɪɨɥɶ ɜ ɩɨɜɟɞɟɧɢɢ ɞɢɧɚɦɢɱɟɫɤɢɯ ɫɢɫɬɟɦ [11][12]. ȼɧɟɲɧɢɟ ɲɭɦɵ ɫɩɨɫɨɛɧɵ ɩɪɢɜɨɞɢɬɶ ɧɟ ɬɨɥɶɤɨ ɤ ɮɥɭɤɬɭɚɰɢɹɦ ɜ ɯɚɪɚɤɬɟɪɢɫɬɢɤɚɯ ɞɢɧɚ-ɦɢɱɟɫɤɢɯ ɫɢɫɬɟɦ, ɧɨ ɢ ɜɵɡɵɜɚɬɶ ɤɚɱɟɫɬɜɟɧɧɭɸ ɩɟɪɟɫɬɪɨɣɤɭ ɢɯ ɪɟɠɢɦɨɜ [13][14][15]. ȼ ɪɚɛɨɬɟ [16] ɧɚ ɩɪɢɦɟɪɟ ɨɫɰɢɥɥɹɬɨɪɚ Ⱥɧɢɳɟɧɤɨ-Ⱥɫɬɚɯɨɜɚ ɩɨɤɚɡɚɧɨ, ɱɬɨ ɜɨɡɞɟɣɫɬɜɢɟ ɲɭɦɨɜɨɝɨ ɫɢɝɧɚɥɚ ɩɪɢɜɨɞɢɬ ɤ ɫɞɜɢɝɭ ɛɢɮɭɪɤɚɰɢɣ ɭɞɜɨɟɧɢɹ ɜ ɫɬɨɪɨɧɭ ɪɨɫɬɚ ɭɩɪɚɜɥɹɸɳɟɝɨ ɩɚɪɚ-ɦɟɬɪɚ.…”

Section: Introductionunclassified

Contact Interaction Plates, Reinforced by Ribs, With Gaps Under the Influence of White Noise

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2015

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Vibration based damage detection of a beam-type structure using noise suppression method

Cited by 23 publications

References 15 publications

Statics-Based Model-Free Damage Detection under Uncertainties Using Modal Interval Analysis

Statics-Based Model-Free Damage Detection under Uncertainties Using Modal Interval Analysis

Contact Interaction of Plates and Beams Under the Influence of White Noise

Contact Interaction Plates, Reinforced by Ribs, With Gaps Under the Influence of White Noise

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