Detail publikace

Identification of Damage on Sluice Hoist Beams Using Local Mode Evoked by Swept Frequency Excitation

WEI, Q. XU, H. LI, Y. CHEN, L. NOVÁK, D. CUI, L. CAO, M.

Originální název

Identification of Damage on Sluice Hoist Beams Using Local Mode Evoked by Swept Frequency Excitation

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

As a global vibration characteristic, natural frequency often suffers from insufficient sensitivity to structural damage, which is associated with local variations of structural material or geometric properties. Such a drawback is particularly significant when dealing with the large scale and complexity of sluice structural systems. To this end, a damage detection method in sluice hoist beams is proposed that relies on the utilization of the local primary frequency (LPF), which is obtained based on the swept frequency excitation (SFE) technique and local resonance response band (LRRB) selection. Using this method, the local mode of the target sluice hoist beam can be effectively excited, while the vibrations of other components in the system are suppressed. As a result, the damage will cause a significant shift in the LPF of the sluice hoist beam at the local mode. A damage index was constructed to quantitatively reflect the damage degree of the sluice hoist beam. The accuracy and reliability of the proposed method were verified on a three-dimensional finite element model of a sluice system, with the noise resistance increased from 0.05 to 0.2 based on the hammer impact method. The proposed method exhibits promising potential for damage detection in complex structural systems.

Klíčová slova

hoist beam; damage detection; local primary frequency; local mode; local resonance response band

Autoři

WEI, Q.; XU, H.; LI, Y.; CHEN, L.; NOVÁK, D.; CUI, L.; CAO, M.

Vydáno

23. 8. 2021

Nakladatel

MDPI

Místo

BASEL

ISSN

1424-8220

Periodikum

SENSORS

Ročník

21

Číslo

19

Stát

Švýcarská konfederace

Strany od

1

Strany do

16

Strany počet

16

URL

https://www.mdpi.com/1424-8220/21/19/6357/htm

Plný text v Digitální knihovně

http://hdl.handle.net/11012/204051

BibTex

@article{BUT176243,
  author="Qing Yang {Wei} and Hao {Xu} and Yifei {Li} and Li {Chen} and Drahomír {Novák} and Li {Cui} and Maosen {Cao}",
  title="Identification of Damage on Sluice Hoist Beams Using Local Mode Evoked by Swept Frequency Excitation",
  journal="SENSORS",
  year="2021",
  volume="21",
  number="19",
  pages="1--16",
  doi="10.3390/s21196357",
  issn="1424-8220",
  url="https://www.mdpi.com/1424-8220/21/19/6357/htm"
}