Development of diagnostic technique for structure filled with liquid metal using acoustic vibration

利用声振动开发液态金属填充结构诊断技术

• 批准号: 23561021
• 负责人: WAKUI Takashi
• 金额: $ 3.41万
• 依托单位: Japan Atomic Energy Agency
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23561021/
• 关键词: 診断技術; 超音波計測; 損傷評価; 固液連成振動; ガイド波; 水銀ターゲット容器; 超音波; 非破壊検査; キャビテーション; レーザー計測; 衝撃; 低熱膨張合金; 液体金属; 衝撃壊食

In order to estimate the damage on the inner surface of the structure, relationships between ultrasonic waveform and the amount of damage was clarified by using the contactless and remote controlled measuring technique. The optimal measurement conditions for detecting minute damage were found out. Because the ultrasonic wave propagating in the structure which includes the liquid was influenced the liquid, the influence was taken into account in the ultrasonic measurement. In consideration of the above result, the measuring system based on the laser Doppler vibrometer was developed and the vibration due to proton beams could be measured with sufficient accuracy to monitor the mercury target vessel. This measuring system can be applied as the monitoring system for the apparatus used under the extreme environment.

为了估计结构内表面的损伤，利用非接触式远程控制测量技术阐明了超声波波形与损伤量之间的关系。找出了检测微小损伤的最佳测量条件。由于在包含液体的结构中传播的超声波受到液体的影响，因此在超声波测量中考虑了该影响。考虑到上述结果，开发了基于激光多普勒振动计的测量系统，并且可以足够精确地测量质子束引起的振动以监测汞靶容器。该测量系统可用作极端环境下使用的设备的监控系统。

项目成果

Pitting damage evaluation by nonlinear ultrasonic method

非线性超声法点蚀损伤评估

• 发表时间: 2011
• 作者: 涌井 隆

Vibration Measurement of Mercury Target using Laser Doppler Vibrometer

使用激光多普勒测振仪测量水银目标的振动

• 发表时间: 2013
• 作者: 涌井隆

非線形超音波法によるピッティング損傷評価

使用非线性超声方法评估点蚀损伤

• 发表时间: 2011
• 作者: 涌井隆