Combined diagnostics of the technical state of mobile reflector in IBR-2 research reactor

IF 0.4 4区工程技术 Q4 NUCLEAR SCIENCE & TECHNOLOGY

Atomic Energy Pub Date : 2025-02-19 DOI:10.1007/s10512-025-01181-4

V. D. Sizarev, A. V. Smirnov, A. G. Sokolova, F. Ya. Balitsky

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Abstract

The paper considers the issue of ensuring the reliability and nuclear safety of unique rotary equipment represented with the mobile neutron reflector of the IBR-2M research reactor. The specifics of its operation under the conditions of inaccessibility for visual control and maintenance dictates the need to use indirect methods of monitoring and diagnostics. The performed study demonstrates the efficiency of combined vibration monitoring and diagnostics for detecting operational defects of the PO-3 mobile reflector. Both conventional spectral and non-standard probabilistic methods of vibration analysis are used, including the S-discriminant analysis adapted to the reference state of equipment. The gamma-spectral analysis of radioactive impurities in the reflector lubricant oil significantly increases the reliability of recognizing the technical state of complex machinery. The example of the PO-2R mobile reflector demonstrates the applicability of the neutron activation method to identify the release of metal microparticles in the oil lubricant due to the degradation processes of exhausted equipment.

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IBR-2研究堆移动反射器技术状态的综合诊断

本文研究了以IBR-2M研究堆移动中子反射器为代表的独特旋转设备的可靠性和核安全保障问题。在无法进行目视控制和维护的情况下，其操作的具体情况决定了需要使用间接的监测和诊断方法。验证了振动监测与诊断相结合的方法对PO-3移动式反射器工作缺陷检测的有效性。采用了常规的频谱和非标准概率振动分析方法，包括适应设备参考状态的s -判别分析。对反射器润滑油中放射性杂质的伽玛谱分析，大大提高了对复杂机械技术状态识别的可靠性。PO-2R移动反射器的实例证明了中子活化方法在识别因废弃设备降解过程而导致的润滑油中金属微粒释放方面的适用性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Atomic Energy 工程技术-核科学技术

CiteScore

1.00

自引率

20.00%

发文量

100

审稿时长

4-8 weeks

期刊介绍： Atomic Energy publishes papers and review articles dealing with the latest developments in the peaceful uses of atomic energy. Topics include nuclear chemistry and physics, plasma physics, accelerator characteristics, reactor economics and engineering, applications of isotopes, and radiation monitoring and safety.