| Presentation | 2001/9/18 Multiple round-trips of acoustic waves alog the surface of a sphere : the application to NDE of bearing ball and ball AO devices Satoru ISHIKAWA, Hideo CHO, Yusuke TSUKAHARA, Noritaka NAKASO, Kazushi YAMANAKA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Using the laser ultrasonic method, we investigated the distribution of acoustic waves on and inside of a sphere excited by a line source. Experimental results revealed that surface acoustic waves were confined within a narrow path due to the balance of the diffraction and convergence effects. Moreover, the distribution had unique divergent, collimating and focussing forms, which had been predicted theoretically. The multiple reflections of bulk waves inside fused silica ball were also observed, and a shear wave reflected 3 times in a round-trip was identified. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Sphere / Surface acoustic waves / Round-trips / Ball bearing / Devices / Nondestructive evaluation |
| Paper # | US2001-46 |
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| Committee | US |
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| Conference Date | 2001/9/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Ultrasonics (US) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Multiple round-trips of acoustic waves alog the surface of a sphere : the application to NDE of bearing ball and ball AO devices |
| Sub Title (in English) | |
| Keyword(1) | Sphere |
| Keyword(2) | Surface acoustic waves |
| Keyword(3) | Round-trips |
| Keyword(4) | Ball bearing |
| Keyword(5) | Devices |
| Keyword(6) | Nondestructive evaluation |
| 1st Author's Name | Satoru ISHIKAWA |
| 1st Author's Affiliation | Graduate School of Engineering, Tohoku University() |
| 2nd Author's Name | Hideo CHO |
| 2nd Author's Affiliation | Graduate School of Engineering, Tohoku University |
| 3rd Author's Name | Yusuke TSUKAHARA |
| 3rd Author's Affiliation | Technical Research Institute, Toppan Printing Co., Ltd. |
| 4th Author's Name | Noritaka NAKASO |
| 4th Author's Affiliation | Technical Research Institute, Toppan Printing Co., Ltd. |
| 5th Author's Name | Kazushi YAMANAKA |
| 5th Author's Affiliation | Graduate School of Engineering, Tohoku University |
| Date | 2001/9/18 |
| Paper # | US2001-46 |
| Volume (vol) | vol.101 |
| Number (no) | 316 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |