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Volume 35, Issue 5
A Noise and Vibration Tolerant ResNet for Field Reconstruction with Sparse Sensors

Han Li, Jialiang Lu, Hongjun Ji, Lizhan Hong & Helin Gong

Commun. Comput. Phys., 35 (2024), pp. 1287-1308.

Published online: 2024-06

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  • Abstract

The aging of nuclear reactors presents a substantial challenge within the field of nuclear energy. Consequently, there is a critical demand for field reconstruction techniques capable of obtaining comprehensive spatial data about the condition of nuclear reactors, even when provided with limited observer data. It is worth noting that prior research has often neglected to account for the impact of noise and changes in sensor states that can occur during actual production scenarios. In this paper, the so called Noise and Vibration Tolerant ResNet (NVT-ResNet) is proposed to tackle these challenges. By introducing noise and vibrations into the training data, NVT-ResNet is able to learn the tolerance thus exhibits robustness for the field reconstruction. The influence of sensor numbers on the model’s performance is also investigated. Numerical results convincingly demonstrate that even with limited sparse sensors exposed to a noise with magnitude of 5% and vibrations, NVT-ResNet consistently achieves a reconstruction field of relative $L_2$ error within 1% and relative $L_∞$ error of less than 5% in average sense. Additionally, NVT-ResNet exhibits remarkable computational efficiency, with field reconstruction taking only microseconds. This makes it a viable candidate for integration into online monitoring systems, thereby enhancing the safety performance of nuclear reactors.

  • AMS Subject Headings

68T07, 93B51, 94A08

  • Copyright

COPYRIGHT: © Global Science Press

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@Article{CiCP-35-1287, author = {Li , HanLu , JialiangJi , HongjunHong , Lizhan and Gong , Helin}, title = {A Noise and Vibration Tolerant ResNet for Field Reconstruction with Sparse Sensors}, journal = {Communications in Computational Physics}, year = {2024}, volume = {35}, number = {5}, pages = {1287--1308}, abstract = {

The aging of nuclear reactors presents a substantial challenge within the field of nuclear energy. Consequently, there is a critical demand for field reconstruction techniques capable of obtaining comprehensive spatial data about the condition of nuclear reactors, even when provided with limited observer data. It is worth noting that prior research has often neglected to account for the impact of noise and changes in sensor states that can occur during actual production scenarios. In this paper, the so called Noise and Vibration Tolerant ResNet (NVT-ResNet) is proposed to tackle these challenges. By introducing noise and vibrations into the training data, NVT-ResNet is able to learn the tolerance thus exhibits robustness for the field reconstruction. The influence of sensor numbers on the model’s performance is also investigated. Numerical results convincingly demonstrate that even with limited sparse sensors exposed to a noise with magnitude of 5% and vibrations, NVT-ResNet consistently achieves a reconstruction field of relative $L_2$ error within 1% and relative $L_∞$ error of less than 5% in average sense. Additionally, NVT-ResNet exhibits remarkable computational efficiency, with field reconstruction taking only microseconds. This makes it a viable candidate for integration into online monitoring systems, thereby enhancing the safety performance of nuclear reactors.

}, issn = {1991-7120}, doi = {https://doi.org/10.4208/cicp.OA-2023-0252}, url = {http://global-sci.org/intro/article_detail/cicp/23192.html} }
TY - JOUR T1 - A Noise and Vibration Tolerant ResNet for Field Reconstruction with Sparse Sensors AU - Li , Han AU - Lu , Jialiang AU - Ji , Hongjun AU - Hong , Lizhan AU - Gong , Helin JO - Communications in Computational Physics VL - 5 SP - 1287 EP - 1308 PY - 2024 DA - 2024/06 SN - 35 DO - http://doi.org/10.4208/cicp.OA-2023-0252 UR - https://global-sci.org/intro/article_detail/cicp/23192.html KW - Field reconstruction, NVT-ResNet, observation noise, nuclear reactors, sensor vibrations. AB -

The aging of nuclear reactors presents a substantial challenge within the field of nuclear energy. Consequently, there is a critical demand for field reconstruction techniques capable of obtaining comprehensive spatial data about the condition of nuclear reactors, even when provided with limited observer data. It is worth noting that prior research has often neglected to account for the impact of noise and changes in sensor states that can occur during actual production scenarios. In this paper, the so called Noise and Vibration Tolerant ResNet (NVT-ResNet) is proposed to tackle these challenges. By introducing noise and vibrations into the training data, NVT-ResNet is able to learn the tolerance thus exhibits robustness for the field reconstruction. The influence of sensor numbers on the model’s performance is also investigated. Numerical results convincingly demonstrate that even with limited sparse sensors exposed to a noise with magnitude of 5% and vibrations, NVT-ResNet consistently achieves a reconstruction field of relative $L_2$ error within 1% and relative $L_∞$ error of less than 5% in average sense. Additionally, NVT-ResNet exhibits remarkable computational efficiency, with field reconstruction taking only microseconds. This makes it a viable candidate for integration into online monitoring systems, thereby enhancing the safety performance of nuclear reactors.

Han Li, Jialiang Lu, Hongjun Ji, Lizhan Hong & Helin Gong. (2024). A Noise and Vibration Tolerant ResNet for Field Reconstruction with Sparse Sensors. Communications in Computational Physics. 35 (5). 1287-1308. doi:10.4208/cicp.OA-2023-0252
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