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| A Study of Risk Propagation in Natural Gas Pipeline Networks Based on Complex Networks |
| DAI Jianyong, GAN Meiyan, ZHANG Meirong, MAO Jiazhi, LIU Chao
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| a. School of Resource Environment and Safety Engineering; b. Hunan Province Key Laboratory of Emergency Safety Technology and Equipment for Nuclear Facilities, University of South China, Hengyang 421001, China |
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Abstract To improve pipeline safety monitoring and maintenance, the optimal risk transmission path of the natural gas pipeline network is explored. Firstly, the network topology is constructed based on complex network theory, and the importance of network nodes is ranked by entropy weight-TOPSIS method. Secondly, the risk propagation model of the natural gas pipeline network is constructed, the failure rate and vulnerability of network nodes are defined, and the risk propagation degree and optimal risk propagation path of nodes under deliberate and random failure strategies are obtained. Finally, based on the empirical analysis of the Shanghai natural gas pipeline network, the results show that the total risk of intentional damage propagation is greater than that of random damage in the case of cascade risk, which provides a basis for pipeline topology optimization and maintenance.
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Received: 01 November 2022
Published: 07 November 2024
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