A safety dynamic evaluation method for missile mission based on multi-layered safety control structure model

The multi -mission environment and complex working conditions of long-term storage put forward strict requirements on the effective risk suppression and accurate safety evaluation of missile equipment. This paper proposes a safety dynamic evaluation method based on a multi -layered safety control structure model to realize accurate safety evaluation for missile missions. Firstly, according to the missile mission profile characteristics, a multi -view architecture is constructed to achieve the accurate description of mission process as well as their relationships and interactions. Secondly, a multi -layered safety control structure model is proposed to determine the accident causal factors and accident chain of the targeted mission. Meanwhile, oriented to the long-term storage complex and volatile environment, a human performance and risk evaluation system is built to realize the effective evaluation of human factor error rate under the man -machine -environment coupling condition. Then, a safety dynamic feedback evaluation method integrating STAMP and CREAM is proposed to obtain the accident rates of the missile mission. Finally, a case study of the missile test mission is carried out, and 6 typical accident scenarios are studied. The results show that the overall accident rate accuracy is improved by 70.08%, which verifies the effectiveness and superiority of the proposed method.