Detection of Damage in Simply-Supported Plates by Discrete Wavelet Transform of Reconstructed Modal Data

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Payesteh Milad; Aghajan Nashtaee Morteza; Taheri Nasab Mohammad; BEHESHTI AVAL SEYED BAHRAM

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR) Year:2019 | Volume:51 | Issue:3 Page(s): 503-522

Download Full-Text

Persian Verion

View:

380

Download:

Cites:

Information Journal Paper

Title

Detection of Damage in Simply-Supported Plates by Discrete Wavelet Transform of Reconstructed Modal Data

Author(s)

Payesteh Milad | Aghajan Nashtaee Morteza | Taheri Nasab Mohammad | BEHESHTI AVAL SEYED BAHRAM | Issue Writer Certificate

Keywords

damage detectionQ1

Discrete wavelet transformsQ1

modal dataQ2

platesQ1

health monitoringQ1

Abstract

Localized singularities caused by changes in the stiffness or mass of the damaged region cannot be simply visible through smooth mode shape curves. However, the wavelet transform of input signal can identify the location of defects by sudden changes in the spatial variation of transformed response. The aim of this study is to present a new method for damage detection in a squarely damaged plate with element of reduced thickness with damage ratio 3% and to decrease the possible random noises that are come from different sources such as numerical solutions or physical situation. In this approach, the value of each point of mode shape data is subtracted from or is added with its symmetric point with respect to the plate’ s point of symmetry (point O). The obtained value is located at its first point, again. The result of this process is a symmetrical mode shape matrix of the damaged plate, which is utilized as the input signal function in wavelet analysis. The results demonstrated that using reconstructed modal data is superior to the original modal data and they provide a better crack indicator than the result of the DWT of the original mode shape data. The effects of crack location and sampling interval are examined. The simulated results show that this approach is more effective in damage detection of plate-like structures, as the method requires the knowledge of only the response of the damaged plate as a baseline for crack detection.

Cites

No record.

References

No record.

Cite

APA: Copy

Payesteh, Milad, Aghajan Nashtaee, Morteza, Taheri Nasab, Mohammad, & BEHESHTI AVAL, SEYED BAHRAM. (2019). Detection of Damage in Simply-Supported Plates by Discrete Wavelet Transform of Reconstructed Modal Data. AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR), 51(3 ), 503-522. SID. https://sid.ir/paper/165545/en

Vancouver: Copy

Payesteh Milad, Aghajan Nashtaee Morteza, Taheri Nasab Mohammad, BEHESHTI AVAL SEYED BAHRAM. Detection of Damage in Simply-Supported Plates by Discrete Wavelet Transform of Reconstructed Modal Data. AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR)[Internet]. 2019;51(3 ):503-522. Available from: https://sid.ir/paper/165545/en

IEEE: Copy

Milad Payesteh, Morteza Aghajan Nashtaee, Mohammad Taheri Nasab, and SEYED BAHRAM BEHESHTI AVAL, “Detection of Damage in Simply-Supported Plates by Discrete Wavelet Transform of Reconstructed Modal Data,” AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR), vol. 51, no. 3 , pp. 503–522, 2019, [Online]. Available: https://sid.ir/paper/165545/en

Related Journal Papers