Development of High Frequency Vibration Measurement and HelthMonitoring System Using Contactless Laser Excitation
| Project/Area Number |
22246027
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Dynamics/Control
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| Research Institution | Hokkaido University |
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Principal Investigator |
KAJIWARA Itsuro 北海道大学, 大学院・工学研究院, 教授 (60224416)
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| Co-Investigator(Kenkyū-buntansha) |
NARITA Yoshihiro 北海道大学, 大学院・工学研究院, 教授 (00137407)
KOBAYASHI Yukinori 北海道大学, 大学院・工学研究院, 教授 (10186778)
HARADA Hiroyuki 北海道大学, 大学院・工学研究院, 准教授 (90301936)
EMARU Takanori 北海道大学, 大学院・工学研究院, 准教授 (30440952)
HOSHINO Yohei 北海道大学, 大学院・工学研究院, 助教 (90374579)
HONDA Shinya 北海道大学, 大学院・工学研究院, 助教 (90548190)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥42,380,000 (Direct Cost: ¥32,600,000、Indirect Cost: ¥9,780,000)
Fiscal Year 2012: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2011: ¥15,470,000 (Direct Cost: ¥11,900,000、Indirect Cost: ¥3,570,000)
Fiscal Year 2010: ¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
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| Keywords | 振動解析 / 試験 / レーザーアブレーション / 非接触レーザー加振 / インパルス応答 / 打撃試験 / 周波数応答関数 / パルスレーザー / 振動試験 |
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| Research Abstract |
This study developed a vibration testing and health monitoring system based on an impulse response excited by a laser ablation. High power Nd: YAG pulse laser was used for producing an ideal impulse force on structural surface. It was possible to measure high frequency vibration responses in this system. A health monitoring system was constructed by this vibration testing system and a damage detecting algorithm.
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Report
(4 results)
Research Products
(66 results)
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[Presentation] Structural health monitoring by high frequency vibration measurement with non-contact laser excitation2011
Author(s)
Kajiwara, I., Miyamoto, D., Hosoya, N., and Nishidome, C
Organizer
Proceedings of SPIE Smart Structures/NDE 2011
Place of Presentation
Convention Center, San Diego, CA, USA
Year and Date
2011-03-09
Related Report
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