Blasting vibration signal analysis technology of construction of nuclear power plant based on improved MP-WVD algorithm

MEI Bi; WANG Xuguang; YANG Renshu

doi:10.11883/bzycj-2018-0055

Volume 39 Issue 4

Mar. 2019

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MEI Bi, WANG Xuguang, YANG Renshu. Blasting vibration signal analysis technology of construction of nuclear power plant based on improved MP-WVD algorithm[J]. Explosion And Shock Waves, 2019, 39(4): 045201. doi: 10.11883/bzycj-2018-0055

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MEI Bi, WANG Xuguang, YANG Renshu. Blasting vibration signal analysis technology of construction of nuclear power plant based on improved MP-WVD algorithm[J]. Explosion And Shock Waves, 2019, 39(4): 045201. doi: 10.11883/bzycj-2018-0055

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Blasting vibration signal analysis technology of construction of nuclear power plant based on improved MP-WVD algorithm

doi: 10.11883/bzycj-2018-0055

1.
School of Mechanics, Architecture and Civil Engineering, China University of Mining and Technology, Beijing 100083, China
2.
Beijing General Research Institute of Mining and Metallurgy, Beijing 100160, China

Received Date: 2018-02-09
Rev Recd Date: 2018-03-19

Available Online: 2019-03-25

Publish Date: 2019-04-01

Abstract

Abstract

In this study, an MP-WVD combination algorithm is introduced to solve the cross term interference problem in signal analysis. The time-frequency resolution has been improved, which meets the requirement of accurately extracting time-frequency distribution characteristics of nuclear power station blasting vibration response signals. Introduction of HHT algorithm into the data preprocessing of MP algorithm has successfully reduced the computational complexity of MP algorithm, and laid the foundation for large data analysis. Combined with the first phase project of Zhangzhou nuclear power station, the improved algorithm has been applied to analyze blasting vibration signals. The time-frequency characteristics of blasting vibration signals in the surrounding terrain and earth rock environment of the nuclear power station were obtained. This will provide reference for vibration monitoring and safety protection of blasting in the extension project.
- MP algorithm,
- WVD distribution,
- time-frequency analysis,
- nuclear power construction,
- blasting construction

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