Paper Title:
Development of a Bi-Axial Acceleration-Detecting Device for a Tube
  Abstract

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 accelerationdetecting 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 accelerationdetecting 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.

  Info
Periodical
Key Engineering Materials (Volumes 326-328)
Edited by
Soon-Bok Lee and Yun-Jae Kim
Pages
1483-1486
DOI
10.4028/www.scientific.net/KEM.326-328.1483
Citation
D. S. Oh, Y. H. Lee, C. H. Shin, T. H. Chun, H. K. Kim, K. B. Lee, "Development of a Bi-Axial Acceleration-Detecting Device for a Tube", Key Engineering Materials, Vols. 326-328, pp. 1483-1486, 2006
Online since
December 2006
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Price
$32.00
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