Journal of South China University of Technology(Natural Science) >
Finite Element Analysis of Propagation Characteristics of Guided Waves in Helically-Curved Ｒods
Received date: 2013-10-29
Revised date: 2014-03-14
Online published: 2014-07-01
Supported by
国家自然科学基金重点资助项目( 11132002) ; 华南理工大学中央高校基本科研业务费专项资金资助项目( x2tj-D2120420)
This paper deals with the propagation characteristics of guided waves in helically-curved rods by meansof the finite element method.First,the coordinate transformation and the two-dimensional fast Fourier transform( 2D-FFT) are employed to process and analyze guided waves.Then,the propagation processes of guided waves inthe helically-curved rods respectively with different diameters and different helix angles are simulated,and theeffects of the diameter and the helix angle on the propagation are described.Finally,the cut-off frequency and themodal separation phenomena occurring in the propagation process are discussed.
Li Chun-lei Han Qiang Liu Yi-jie Xiao Dong-liang . Finite Element Analysis of Propagation Characteristics of Guided Waves in Helically-Curved Ｒods[J]. Journal of South China University of Technology(Natural Science), 2014 , 42(8) : 6 -13,33 . DOI: 10.3969/j.issn.1000-565X.2014.08.002
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