Presentation 2016-11-07
Investigation of damage exploration using time-frequency analysis method by Wigner-Ville distribution
Yusaku Ota, Yasuhisa Hayashi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) It performs imaging of the damage as damage exploration techniques using Lamb waves. Because higher resolution is required in an imaging techniques, in this study examine analysis by Wigner-Ville distribution which has very high resolution as a time-frequency analysis method of the signal. After comparing it with the Wavelet transform that is a conventional method, it confirmed improvement of the resolution and showed effective possibility as a signal analysis technique in the imaging of the damage.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Lamb wave / Time-frequency analysis / Wigner-Ville distribution / Damage exploration
Paper # US2016-50
Date of Issue 2016-10-31 (US)

Conference Information
Committee US
Conference Date 2016/11/7(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Nobuyuki Endo(Kanagawa Univ.)
Vice Chair Yoichi Itoh(Nihon Univ.) / Minoru Kurosawa(Tokyo Inst. of Tech.)
Secretary Yoichi Itoh(Univ. of Electro-Comm.) / Minoru Kurosawa(Univ. of Toyama)
Assistant Takeshi Morita(Univ. of Tokyo)

Paper Information
Registration To Technical Committee on Ultrasonics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Investigation of damage exploration using time-frequency analysis method by Wigner-Ville distribution
Sub Title (in English)
Keyword(1) Lamb wave
Keyword(2) Time-frequency analysis
Keyword(3) Wigner-Ville distribution
Keyword(4) Damage exploration
1st Author's Name Yusaku Ota
1st Author's Affiliation Shizuoka University(Shizuoka Univ.)
2nd Author's Name Yasuhisa Hayashi
2nd Author's Affiliation Shizuoka University(Shizuoka Univ.)
Date 2016-11-07
Paper # US2016-50
Volume (vol) vol.116
Number (no) US-288
Page pp.pp.7-10(US),
#Pages 4
Date of Issue 2016-10-31 (US)