Research on Key Parameters Selection of Lock Capacity Simulation

Abstract

AbstractThere are many factors affecting the lock capacity, including ship size and ship type combination, navigation speed of ships entering and leaving the lock, ship spacing, lock filling and discharging time, gate opening and closing time, dimension of lock chamber, navigation days, ship loading rate, traffic volume imbalance, daily working time, etc. In the simulation model, the ship's random arrival at the lock and the distribution proportion of ship type can be simulated, so as to realize the random process of ship passing through the lock and simulate the ship passing scheduling rules. Compared with the methods of manual calculating the lock capacity according to the code, the simulation method is more objective and scientific. In the simulation analysis of lock capacity, the two ship operation parameters of ship entering and exit speed and start interval have strong randomness. This paper studies the rationality of the parameters by constructing the simulation model of lock capacity system. The simulation test shows that with the increase of randomness of ship entering and exit speed, the passing capacity of ship lock decreases gradually, but this decrease can be ignored. The randomness of the start interval has no obvious effect on the lock capacity. Therefore, it is reasonable to take the average value of the model parameters when using the system simulation method to determine the navigation capacity of the lock, and considering all factors comprehensively, it is recommended to take the average value of the parameters in the modeling.