Damage detection of jacket type offshore platforms using rate of signal energy using wavelet packet transform
| Autor: | Vahid Aghaeidoost, Hamed Rahman Shokrgozar, Behrouz Asgarian |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Damage detection
Engineering business.industry Mechanical Engineering Hinge 020101 civil engineering Ocean Engineering 02 engineering and technology Structural engineering 01 natural sciences 010305 fluids & plasmas 0201 civil engineering Wavelet packet decomposition Steel jacket Mechanics of Materials Dynamic loading 0103 physical sciences General Materials Science Submarine pipeline Structural health monitoring Pile business |
| Zdroj: | Marine Structures. 45:1-21 |
| ISSN: | 0951-8339 |
| DOI: | 10.1016/j.marstruc.2015.10.003 |
| Popis: | Steel jacket type offshore platforms are highly susceptible to damage because of the severe environmental condition, therefore ensuring its proper performance and detection of probable damage is very important and undeniable. In this paper, by studying on experimental results of a prototype scaled offshore platform subjected to dynamic loading for different damage conditions, efficiency of Rate of Signal Energy using Wavelet Packet Transform for damage detection of this kind of structures has been carried out. Experiments results of two support conditions including hinge based and pile supported cases have been used. Wavelet packet analysis was used to determine the location of damage for different damage scenarios. The results demonstrate that proposed method can predict location of damage accurately. It can be concluded that this method can be used for prediction of damages similar to damages considered in this paper by using a continuous measurements and monitoring of platform responses. |
| Databáze: | OpenAIRE |
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