A Study of Risk Propagation in Natural Gas Pipeline Networks Based on Complex Networks
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 net-work 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 fail-ure 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 topol-ogy optimization and maintenance.
complex networksnatural gas pipeline networkrisk communication routesdeliber-ate vandalismrandom vandalism
万方数据
维普
