Impact Analysis of Node Immunity on Risk Transfer Behavior in Accident Network
Wang Son · Safety and Environmental Engineering · 2015
For the purpose of getting rid of the limitations of physical model,from the perspective the dynamic evolvement of the accident systems to reveal the general accident law of complex system,this paper reconstructs the dynamic model of the accident network risk transfer with focus on the influence of node risk immunity,spread mechanism and internal random noise on risk transfer process.Based on the reconstructed accident network,the paper applies Arena software to simulating the impact of node immunity on the risk transfer behavior of the accident network,including influences of different node immunities in essential causation layer,transition causation layer and adjacent causation layer on the behavior of risk transfer.The results show that the node immunities in essential causation layer and adjacent causation layer are sensitive parameters to the risk transfer behavior and a higher risk immunity level should be given to those causation layers in the accident prevention of complex systems.