Shear horizontal circumferential wave EMAT design for pipeline inspection based on FEM
| Autor: | Jiang Cheng, Zhang Xu, Jun Tu, Cai Chen, Qiu Gongzhe, Xiaochun Song |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
business.industry Mechanical Engineering Pipeline (computing) Structural engineering Condensed Matter Physics Finite element method Circumferential waves Electronic Optical and Magnetic Materials Mechanics of Materials Shear horizontal Electrical and Electronic Engineering business Electromagnetic acoustic transducer |
| Zdroj: | International Journal of Applied Electromagnetics and Mechanics. 64:913-919 |
| ISSN: | 1875-8800 1383-5416 |
| DOI: | 10.3233/jae-209405 |
| Popis: | The electromagnetic acoustic transducer (EMAT) is widely used in In-Line Inspection of gas pipeline. However, the transduction efficiency of the EMAT transmitter is lower compared with the traditional piezoelectric transducer and needs improving. To enhance the amplitude of the received signal, an improved periodic-permanent-magnet EMAT is provided as well as its construction method to generate shear horizontal guided waves propagating in the circumferential direction. By designing a racetrack coil and magnetic array with the same radian of the annular pipeline, the EMAT is more suitable to generate the circumferential wave in the pipeline. The performance of the EMAT transmitter has been assessed with the validated finite element model. |
| Databáze: | OpenAIRE |
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