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首页> 外文期刊>Key Engineering Materials >Development of a Bi-axial Acceleration-detecting Device for a Tube
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Development of a Bi-axial Acceleration-detecting Device for a Tube

机译：管的双轴加速度检测装置的开发

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摘要

A new device for measuring an acceleration in a fuel rod has been developed. The primary purpose is to apply it to the experiments for a nuclear fuel fretting, which is caused by a fuel rod and grid interaction due to a flow-induced vibration of the rods. A bi-axial acceleration-detecting device of a cylindrical shape for an insertion into a cladding tube is designed. Two unimorph piezoelectric accelerometers of small size and for special use in a high temperature condition were attached to the housing's inner wall of the mounting device, which were oriented perpendicularly with each other to accommodate the acceleration signal during a fretting. Verification is carried out by a displacement and a frequency response analysis. The verification results of the bi-axial acceleration-detecting device showed a good response for the amplitude and bi-directional trace. This paper mainly presents the detailed design of the bi-axial acceleration-detecting device which is developed by using the design optimization of a cylindrical type and applying it to the lower and upper plugs to sustain the device in the tube wall. The verification is carried out by a displacement analysis and a frequency response analysis. An elaboration of the development procedure, calibration method and results are also given in this paper.
机译：已经开发出一种用于测量燃料棒中的加速度的新装置。主要目的是将其应用于核燃料微动的实验，这是由于燃料棒和燃料棒由于流动引起的振动而与电网相互作用而引起的。设计了一种用于插入包层管中的圆柱形双轴加速度检测装置。将两个小尺寸的单压电晶片压电加速度计安装在安装设备的壳体内壁上，它们在高温条件下特殊使用，它们相互垂直，以适应微动期间的加速度信号。通过位移和频率响应分析进行验证。该双轴加速度检测装置的验证结果对振幅和双向轨迹显示出良好的响应。本文主要介绍了双轴加速度检测装置的详细设计，该装置是通过使用圆柱型的设计优化并将其应用于上下塞子以将装置保持在管壁中而开发的。通过位移分析和频率响应分析来进行验证。本文还给出了开发过程，校准方法和结果的详细说明。

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