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Bolt Conclusion Evaluation System using Nonlinear Ultrasonic Pulse Waves

Bolt Conclusion Evaluation System using Nonlinear Ultrasonic Pulse Waves
使用非线性超声波脉冲波的螺栓结论评估系统
批准号:
20860020
负责人:
FUKUDA Makoto
金额:
$2.1万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Young Scientists (Start-up)
财政年份:
2008
资助国家:
日本
项目状态:
已结题
起止时间:
2008 至 2009

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项目成果

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中文摘要
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英文摘要
This study investigates the use of ultrasonic second harmonic components in the quality control of bolt fastened structures. The second harmonic components from a fastened bolt were detected using a double-layered piezoelectric ultrasonic transducer (DLPT). The fundamental ultrasonic pulse waves (1MHz) are transmitted when the DLPT is electrically connected in parallel, while the second harmonic ultrasonic components (2MHz) are detected when the DLPT is connected in series. A hexagon head bolt (the diameter and length of the screw are 12mm and 100mm) was used in the experiments. The bolt was fastened by an axial force of 20kN. The second harmonic component increased by approximately 15dB before and after the bolt was fastened.
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塑性変形した金属棒断面の観察結果による二層型圧電振動子を用いた2次高調波および分調波の検出結果の考察
基于塑性变形金属棒截面的观察结果讨论使用双层压电振子的二次谐波和分谐波检测结果
DOI: --
发表时间: 2008
期刊:
影响因子: --
作者: [三宅徳朗, 金亨燮, 前田真也, 板井善則, タンジュークイ, 石川聖二, 桂川茂彦, 福田誠,鎌田真一,今野和彦, 日置渉, 福田誠,鎌田真一,今野和彦]
通讯作者: 福田誠,鎌田真一,今野和彦
DOI: --
发表时间: 2009
期刊: IEICE Electronics Express 6
影响因子: --
作者: [M.Fukuda, 今野和彦]
通讯作者: 今野和彦
Novel detection system using double-layered pieioelectric transducer in same polarization direction for sub-harmonic components generated from plastic-deformed metal rod
采用同偏振方向双层压电换能器检测塑性变形金属棒产生的次谐波分量的新型检测系统
DOI: --
发表时间: 2008
期刊: Jpn. J. Appl. Phys 47
影响因子: --
作者: [Makoto Fukuda, Morimasa Nishihira and Kazuhiko Imano]
通讯作者: Morimasa Nishihira and Kazuhiko Imano
ボルト締め付け前後における2次高調波検出
螺栓拧紧前后二次谐波检测
DOI: --
发表时间: 2009
期刊:
影响因子: --
作者: [福田誠, 今野和彦]
通讯作者: 今野和彦
25
    Evaluation of Bolt-Nut Fastening Condition Using Nonlinear Ultrasonic Components
    • 批准号:
      22760293
    • 项目类别:
      Grant-in-Aid for Young Scientists (B)
    • 资助金额:
      $2.58万
    • 财政年份:
      2010
    • 负责人:
      FUKUDA Makoto
    • 依托单位:
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    • 批准号:
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    • 项目类别:
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    • 资助金额:
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    • 财政年份:
      1998
    • 负责人:
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