• CN:11-2187/TH
  • ISSN:0577-6686

›› 2000, Vol. 36 ›› Issue (10): 1-4.

• 论文 •    下一篇

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小波变换在反应堆跌落物质量估计中的应用研究

方力先;陈仲仪   

  1. 浙江大学机械系
  • 发布日期:2000-10-15

STUDY ON THE APPLICATION OF WAVELET TRANSFORMATION IN RECTOR'S LOOSE PARTS MASS ESTIMATION

Fang Lixian;Chen Zhongyi   

  1. Zhejiang University
  • Published:2000-10-15

摘要: 采用小波能量谱比值方法,对跌落物进行了质量估计。研究结果表明,该方法明显好于传统的频率比估计法,能较好地区分螺钉(5g)和螺母(12g),且在图表上也能较好地反应冲击能量的变化。小波能量比法为提高跌落物的质量估计精度提供了一个有效的途径。

关键词: 跌落物, 反应堆, 小波变换, 质量估计

Abstract: A energy spectrum method with wavelet transformation is used, the result shows that this method is better than frequency ratio estimation method, and can get the difference of 5g bolt from 12g nut. In the graph, the change of impact energy is shown. Wavelet frequency ratio method gives a better way to falling part’s mass estimation.

Key words: Loose parts monitoring system, Mass estimation, Reactor, Wavelet transform

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