Experimental Study of Damage Detection in Beam Using Dynamic Excitation System and Wavelet Packet Transform and Energy Rate Index

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Kouhdaragh M.; LOTFOLLAHI YAGHIN M.A.; ETEFAGH M.M.; MOJTAHEDI A.R.

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Journal: Modares Mechanical Engineering Year:2019 | Volume:19 | Issue:7 Page(s): 1655-1662

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Title

Experimental Study of Damage Detection in Beam Using Dynamic Excitation System and Wavelet Packet Transform and Energy Rate Index

Author(s)

Kouhdaragh M. | LOTFOLLAHI YAGHIN M.A. | ETEFAGH M.M. | MOJTAHEDI A.R. | Issue Writer Certificate

Keywords

Damage DetectionQ1

Dynamic SystemQ2

Energy Rate IndexQ1

Wavelet PacketQ1

Abstract

Most of structural failures are because of break in consisting materials. Beginning of these breaks is with crack, whose extension is a serious threat to behavior of structure; so, the methods of distinguishing and showing cracks are the most important subjects, which are being investigated. In this article, by experimental, a new smart portable mechanical system to detect damage in beam structures by Wavelet Packet Energy Rate Index is introduced. At first, acceleration-time history is taken from the points of the simple support beam, using the accelerometer sensors, and then these signals are decomposed into packet wavelet components and the Energy Rate Index is calculated for each, which is named by Wavelet Packet Energy Rate Index (WPERI). The results indicate that these values are a sensitive and accurate index for the identification of the cracks.

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APA: Copy

Kouhdaragh, M., LOTFOLLAHI YAGHIN, M.A., ETEFAGH, M.M., & MOJTAHEDI, A.R.. (2019). Experimental Study of Damage Detection in Beam Using Dynamic Excitation System and Wavelet Packet Transform and Energy Rate Index. MODARES MECHANICAL ENGINEERING, 19(7 ), 1655-1662. SID. https://sid.ir/paper/178006/en

Vancouver: Copy

Kouhdaragh M., LOTFOLLAHI YAGHIN M.A., ETEFAGH M.M., MOJTAHEDI A.R.. Experimental Study of Damage Detection in Beam Using Dynamic Excitation System and Wavelet Packet Transform and Energy Rate Index. MODARES MECHANICAL ENGINEERING[Internet]. 2019;19(7 ):1655-1662. Available from: https://sid.ir/paper/178006/en

IEEE: Copy

M. Kouhdaragh, M.A. LOTFOLLAHI YAGHIN, M.M. ETEFAGH, and A.R. MOJTAHEDI, “Experimental Study of Damage Detection in Beam Using Dynamic Excitation System and Wavelet Packet Transform and Energy Rate Index,” MODARES MECHANICAL ENGINEERING, vol. 19, no. 7 , pp. 1655–1662, 2019, [Online]. Available: https://sid.ir/paper/178006/en

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