Title:
INFORMATION PROCESSING DEVICE, SYSTEM, PROGRAM, AND PRESENTATION METHOD
Document Type and Number:
WIPO Patent Application WO/2024/063053
Kind Code:
A1
Abstract:
The present invention provides a new technique for easily determining the elastic constant of an object having a complex shape. This information processing device comprises: an acquisition unit that acquires measurement results obtained by measuring the resonance frequency of an object and a vibrational mode at the resonance frequency; and a determination unit that presents an elastic constant on the basis of a plurality of inputted elasticity values and the measurement results. The determination unit creates, by using the plurality of inputted elasticity values, a first contour diagram of the object in each estimated vibrational mode at an estimated resonance frequency, creates a second contour diagram in each measured vibrational mode at a measured resonance frequency which corresponds to the estimated resonance frequency and which is based on the measurement results, updates the inputted elasticity values by using a genetic algorithm on the basis of the similarity degree between the first contour diagram and the second contour diagram, and presents the elastic constant on the basis of inputted elasticity values that satisfy setting conditions.
Inventors:
YAMAMOTO GO (JP)
YUKI SHUMA (JP)
SAKUDA YUTO (JP)
YUKI SHUMA (JP)
SAKUDA YUTO (JP)
Application Number:
PCT/JP2023/033939
Publication Date:
March 28, 2024
Filing Date:
September 19, 2023
Export Citation:
Assignee:
UNIV TOHOKU (JP)
International Classes:
G01H17/00; G01N3/32; G01N29/12; G06T7/00
Foreign References:
| JP2022107954A | 2022-07-25 | |||
| JP2003207390A | 2003-07-25 |
Other References:
BEARDSLEE LUKE B.; REMILLIEUX MARCEL C.; ULRICH T.J.: "Determining material properties of components with complex shapes using Resonant Ultrasound Spectroscopy", APPLIED ACOUSTICS., ELSEVIER PUBLISHING., GB, vol. 178, 16 March 2021 (2021-03-16), GB , XP086535156, ISSN: 0003-682X, DOI: 10.1016/j.apacoust.2021.108014
ARAI MASAHIRO, SHIBAHARA NAOYUKI, NISHIMURA MASAOMI, SHIMAMURA YOSHINOBU, KOBAYASHI KAZUYUKI: "IDENTIFICATION OF UNISOTROPIC-VISCOELASTIC PROPERTY OF CFRP USING RESONAT ULTRASOUND SPECTROSCOPY", TRANSACTIONS OF THE JAPAN SOCIETY FOR COMPUTATIONAL METHODS IN ENGINEERING, vol. 15, 1 December 2015 (2015-12-01), pages 02 - 151204, XP093150659
ARAI MASAHIRO, SHIBAHARA NAOYUKI, NISHIMURA MASAOMI, SHIMAMURA YOSHINOBU, KOBAYASHI KAZUYUKI: "IDENTIFICATION OF UNISOTROPIC-VISCOELASTIC PROPERTY OF CFRP USING RESONAT ULTRASOUND SPECTROSCOPY", TRANSACTIONS OF THE JAPAN SOCIETY FOR COMPUTATIONAL METHODS IN ENGINEERING, vol. 15, 1 December 2015 (2015-12-01), pages 02 - 151204, XP093150659
Attorney, Agent or Firm:
CLOVER PATENT FIRM et al. (JP)
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