Device and method for testing pulsating load of underwater vehicle model

The invention provides a pulsating load testing device and method for an underwater vehicle model, and belongs to the field of ship and ocean engineering testing. The underwater vehicle model comprises an underwater vehicle model, a circulating water tank, a connecting part, a supporting part and a fixing part, the connecting part comprises a head connecting rod and a tail connecting rod, the head connecting rod and the tail connecting rod are arranged on the head side and the tail side of the top of the underwater vehicle model respectively, and the head connecting rod and the tail connecting rod are both connected with the supporting part. The supporting component is connected with the side wall of the circulating water tank through the fixing component, the head of the underwater vehicle model faces the incoming flow direction of the circulating water tank, the underwater vehicle surrounding shell is arranged upwards in the vertical direction, the surrounding shell is located between the head connecting ro