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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Barai, Sudhir Kumar | - |
dc.date.accessioned | 2021-11-27T04:12:50Z | - |
dc.date.available | 2021-11-27T04:12:50Z | - |
dc.date.issued | 2014 | - |
dc.identifier.uri | https://www.koreascience.or.kr/article/JAKO201404260596596.page | - |
dc.identifier.uri | http://dspace.bits-pilani.ac.in:8080/xmlui/handle/123456789/3656 | - |
dc.description.abstract | This paper presents the processing of nonlinear features associated with a damage event by quadratic time-frequency distributions for damage identification in a frame structure. A time-frequency distribution is a function that distributes the total energy of a signal at a particular time and frequency point. As the occurrence of damage often gives rise to non-stationary, nonlinear structural behavior, simultaneous representation of the dynamic response in the time-frequency plane offers valuable insight for damage detection. The applicability of the bilinear time-frequency distributions of the Cohen class is examined for the damage assessment of a frame structure from the simulated acceleration data. It is shown that the changes in instantaneous energy of the dynamic response could be a good damage indicator. Presence and location of damage can be identified using Choi-Williams distribution when damping is ignored. However, in the presence of damping the Page distribution is more effective and offers better readability for structural damage detection. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Techno Press | en_US |
dc.subject | Civil Engineering | en_US |
dc.subject | Damage detection | en_US |
dc.subject | Nonlinear features | en_US |
dc.subject | Frame structure | en_US |
dc.subject | Time-frequency distributions | en_US |
dc.title | Damage assessment of frame structure using quadratic time-frequency distributions | en_US |
dc.type | Article | en_US |
Appears in Collections: | Department of Civil Engineering |
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