Patent ID: 11935664
Assignee: HARBIN ENGINEERING UNIVERSITY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC G  Y | IPC G

Claim 4:
5. The dynamic characteristic analysis method according to claim 1, wherein in the step S3 and the step S4, a specific method of identifying the DET branch time of state transition occurrence of the DET simulation object comprises:
S31, obtaining the time information of state transition control TRIP variable change of the DET simulation object according to the step S3;
S32, judging whether there is a branch in the current simulation step; if there is no branch, updating a simulation time in an initial restart file R0.i of the RELAP5; a simulation time of a time control card in input cards of the RELAP5 being the sum of a simulation time at an end and a simulation step of the RELAP5; then taking the initial restart file R0.i and the another result file Root. r as input, and running the RELAP5 again;
S33, if there is a branch, obtaining a minimum TRIP trigger time of state transition of the DET simulation object by analyzing the result file of the current simulation step output by the RELAP5, and then obtaining the RELAP5 restart number corresponding to a RELAP5 backtracking restart information block number according to the branch rule of the DET simulation model.