Fault DSm T Fusion Method of Core Barrel Based on Wavelet Energy Analysis

GUO Qing; XIA Hong; HAN Wenwei

doi:10.13832/j.jnpe.2015.01.0085

Volume 36 Issue 1

Feb. 2025

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GUO Qing, XIA Hong, HAN Wenwei. Fault DSm T Fusion Method of Core Barrel Based on Wavelet Energy Analysis[J]. Nuclear Power Engineering, 2015, 36(1): 85-89. doi: 10.13832/j.jnpe.2015.01.0085

Citation:

GUO Qing, XIA Hong, HAN Wenwei. Fault DSm T Fusion Method of Core Barrel Based on Wavelet Energy Analysis[J]. Nuclear Power Engineering, 2015, 36(1): 85-89. doi: 10.13832/j.jnpe.2015.01.0085

GUO Qing, XIA Hong, HAN Wenwei. Fault DSm T Fusion Method of Core Barrel Based on Wavelet Energy Analysis[J]. Nuclear Power Engineering, 2015, 36(1): 85-89. doi: 10.13832/j.jnpe.2015.01.0085

Citation:

GUO Qing, XIA Hong, HAN Wenwei. Fault DSm T Fusion Method of Core Barrel Based on Wavelet Energy Analysis[J]. Nuclear Power Engineering, 2015, 36(1): 85-89. doi: 10.13832/j.jnpe.2015.01.0085

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Fault DSm T Fusion Method of Core Barrel Based on Wavelet Energy Analysis

doi: 10.13832/j.jnpe.2015.01.0085

1. Engineering Training Center, Harbin Engineering University, Harbin, 150001, China;
2. National Defense Key Subject Laboratory for Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin, 150001, China

Received Date: 2014-01-28
Rev Recd Date: 2014-07-10

Available Online: 2025-02-15

Abstract

Abstract

Being aimed at the problems that it is difficult to recognize effectively the faults of core barrel rupture and fall off of core barrel fasteners parts, a method of the wavelet packet energy analysis and DSm T is proposed. By using the wavelet decomposition and reconstruction method, the fault signal of core barrel is decomposed to the basis function family formed from wavelet expanding and contracting, then sub-band energy distributed in different bands are obtained, and used as BPA evaluation signal of core barrel DSm T. By the simulation and analysis, the effectiveness of this method is verified.
- DSm T,
- Wavelet packet energy analysis,
- Core barrel,
- Information fusion