Evaluation of internal boundary surface using instantaneous frequency of ultrasonic pulse
An evaluation technique of internal boundary surface using instantaneous frequency of ultrasonic pulse is proposed. The instantaneous frequency represents a variation of the frequency of the ultrasonic pulse waveform from moment to moment. In this paper, a novel technique to acquire precisely the in...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Japanese |
| Published: |
The Japan Society of Mechanical Engineers
2015-11-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/81/832/81_15-00420/_pdf/-char/en |
| _version_ | 1798018082188296192 |
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| author | Takumi INOUE Takahiro NAKANO Ren KADOWAKI |
| author_facet | Takumi INOUE Takahiro NAKANO Ren KADOWAKI |
| author_sort | Takumi INOUE |
| collection | DOAJ |
| description | An evaluation technique of internal boundary surface using instantaneous frequency of ultrasonic pulse is proposed. The instantaneous frequency represents a variation of the frequency of the ultrasonic pulse waveform from moment to moment. In this paper, a novel technique to acquire precisely the instantaneous frequency of ultrasonic pulse is proposed. Results of fundamental experiments, in which several internal boundary conditions are simulated by rubber elements, show that the instantaneous frequency of ultrasonic pulse transmitted the internal boundary is sensitive to the change of the boundary condition. Profiles of instantaneous frequency significantly change according to surface roughness and contact pressure of boundary, so that the internal boundary conditions can be evaluated by the instantaneous frequency. It is demonstrated that internal boundary conditions can be modeled as linearly or non-linearly change of partial stiffness, and the profiles of the instantaneous frequency depend on the partial stiffness. In addition, it is shown that the proposed method is not only available to rubber element but also metallic component. |
| first_indexed | 2024-04-11T16:18:01Z |
| format | Article |
| id | doaj.art-c0314d04271c4fbea8075f7748cfe9f5 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-11T16:18:01Z |
| publishDate | 2015-11-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-c0314d04271c4fbea8075f7748cfe9f52022-12-22T04:14:27ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612015-11-018183215-0042015-0042010.1299/transjsme.15-00420transjsmeEvaluation of internal boundary surface using instantaneous frequency of ultrasonic pulseTakumi INOUE0Takahiro NAKANO1Ren KADOWAKI2Department of Mechanical Engineering, Faculty of Engineering, Kyushu UniversityDepartment of Mechanical Engineering, Graduate School of Engineering, Kyushu UniversityDepartment of Mechanical Engineering, Faculty of Engineering, Kyushu UniversityAn evaluation technique of internal boundary surface using instantaneous frequency of ultrasonic pulse is proposed. The instantaneous frequency represents a variation of the frequency of the ultrasonic pulse waveform from moment to moment. In this paper, a novel technique to acquire precisely the instantaneous frequency of ultrasonic pulse is proposed. Results of fundamental experiments, in which several internal boundary conditions are simulated by rubber elements, show that the instantaneous frequency of ultrasonic pulse transmitted the internal boundary is sensitive to the change of the boundary condition. Profiles of instantaneous frequency significantly change according to surface roughness and contact pressure of boundary, so that the internal boundary conditions can be evaluated by the instantaneous frequency. It is demonstrated that internal boundary conditions can be modeled as linearly or non-linearly change of partial stiffness, and the profiles of the instantaneous frequency depend on the partial stiffness. In addition, it is shown that the proposed method is not only available to rubber element but also metallic component.https://www.jstage.jst.go.jp/article/transjsme/81/832/81_15-00420/_pdf/-char/endiagnosticssignal processingsupersonic wavesystem identificationinstantaneous frequency |
| spellingShingle | Takumi INOUE Takahiro NAKANO Ren KADOWAKI Evaluation of internal boundary surface using instantaneous frequency of ultrasonic pulse Nihon Kikai Gakkai ronbunshu diagnostics signal processing supersonic wave system identification instantaneous frequency |
| title | Evaluation of internal boundary surface using instantaneous frequency of ultrasonic pulse |
| title_full | Evaluation of internal boundary surface using instantaneous frequency of ultrasonic pulse |
| title_fullStr | Evaluation of internal boundary surface using instantaneous frequency of ultrasonic pulse |
| title_full_unstemmed | Evaluation of internal boundary surface using instantaneous frequency of ultrasonic pulse |
| title_short | Evaluation of internal boundary surface using instantaneous frequency of ultrasonic pulse |
| title_sort | evaluation of internal boundary surface using instantaneous frequency of ultrasonic pulse |
| topic | diagnostics signal processing supersonic wave system identification instantaneous frequency |
| url | https://www.jstage.jst.go.jp/article/transjsme/81/832/81_15-00420/_pdf/-char/en |
| work_keys_str_mv | AT takumiinoue evaluationofinternalboundarysurfaceusinginstantaneousfrequencyofultrasonicpulse AT takahironakano evaluationofinternalboundarysurfaceusinginstantaneousfrequencyofultrasonicpulse AT renkadowaki evaluationofinternalboundarysurfaceusinginstantaneousfrequencyofultrasonicpulse |