Simulation and Analysis of Surface Wave Based on Finite Element Method

Author

Lijian, Yang ; Chunhua, Li ; Mingming, Liu ; Songwei, Gao

Author_Institution

Sch. of Inf. Sci. & Eng., Shenyang Univ. of Technol., Shenyang, China

fYear

2012

fDate

1-3 Nov. 2012

Firstpage

209

Lastpage

212

Abstract

Electromagnetic ultrasound surface wave generated by combination of double magnets and the snake-shaped coil is widely used in the aluminum plate surface flaw detection. The electromagnetic ultrasonic transducer model is investigated and the theory analysis of electromagnetic ultrasound surface wave and numerical simulation of EMAT physical mechanism are discussed in this paper. Based on ANSYS, the 3-D finite element model of electromagnetic ultrasonic transducer is established, furthermore the relationship between magnet field, Lorentz force and surface wave generated on aluminum plate is concluded by applying electromagnetic structural coupling in this model. The consistency of electromagnetic ultrasonic theory and simulation results provides the theoretic basis for the parameters of electromagnetic ultrasonic transducer and facilitates the structural design and optimization of electro-magnetic ultrasonic transducer surface wave devices.

Keywords

aluminium; coils; electromagnetic devices; finite element analysis; flaw detection; magnetic fields; plates (structures); solid modelling; surface acoustic wave transducers; ultrasonic propagation; ultrasonic transducers; ultrasonic waves; 3-D finite element model; ANSYS; Al; EMAT physical mechanism; Lorentz force; aluminum plate surface flaw detection; double magnets; electromagnetic structural coupling; electromagnetic ultrasonic transducer surface wave device optimization; electromagnetic ultrasound surface wave generation; magnet field; numerical simulation; snake-shaped coil; structural design; surface wave analysis; surface wave simulation; theory analysis; Acoustics; Aluminum; Electromagnetic scattering; Electromagnetics; Finite element methods; Magnetic fields; Surface waves; Electromagnetic ultrasonic transducer; Finite element simulation; Lorentz force; bias magnet; electromagnetic ultrasonic; surface wave;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Networks and Intelligent Systems (ICINIS), 2012 Fifth International Conference on

Conference_Location

Tianjin

Print_ISBN

978-1-4673-3083-1

Type

conf

DOI

10.1109/ICINIS.2012.23

Filename

6376523