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Mode Control of Guided Wave in Magnetic Hollow Cylinder Using Electromagnetic Acoustic Transducer Array

Akinori FURUSAWAFumio KOJIMAAtsushi MORIKAWA

Department of systems science,Graduate School of System Informatics,Kobe Univ.

摘要:The aim of this work presented here is to demonstrate the method for exciting and receiving torsional and longitudinal mode guided wave with Electromagnetic Acoustic Transducer(EMAT) ring array.First of all,three-dimensional guided wave simulator is developed in order to analyze propagation of the guided wave numerically.Finite Difference Time Domain(FDTD) method is used for the simulator.To enhance the accuracy of the surface wave,Zero Stress Formulation(ZSF) is used for implementation of the free boundary condition.Second,the guided wave testing systems using EMAT ring array are provided:one is for torsional mode guided wave and the other is for longitudinal mode.Finally,experimental and numerical results are compared and discussed.The results of experiments and simulation agree with well,showing potential of the EMAT ring array for mode controllable guided wave transmitter and receiver.
会议名称:

International Symposium on Future I&C for Nuclear Power Plants(ISOFIC2014)

会议时间:

2014-08-24

会议地点:

韩国济州岛

  • 专辑:

    工程科技Ⅱ辑

  • 专题:

    工业通用技术及设备

  • 分类号:

    TB552

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