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

Claim 9:
10. The dynamic characteristic analysis method according to claim 8, wherein as there is a state transition of DET simulation object in the DET branch, the method for updating the restart file for the RELAP5 comprises:
S521: updating a restart number at a first bit of a 103 card in the restart file *.i for the RELAP5 of current node to be ResNum;
S522: updating a simulation end time SimTime at a first bit of a 201 time control card in the restart file *.i for the RELAP5 of the current node according to a following formula:, SimTime
  =
  
   
    
     INT
     [
     
      
       TRIPTimemin
       
        Δ
        ⁢
        t
       
      
      -
      
       1
       2
      
     
     ]
    
    ×
    Δ
    ⁢
    t
   
   +
   
    Δ
    ⁢
    T
   
  
 

where INT[ ] represents a rounding function, TRIPTimemin represents a minimum TRIP trigger time of state transition of the DET simulation object of calculation result in the current simulation step of the RELAP5, Δt represents a time interval between two restart information blocks in the time control card of input cards of the RELAP5, ΔT represents each the simulation step of the RELAP5; and
S523: updating state transition control TRIP information of the DET simulation object by category.