Ship weight calculation method based on dock water inflow

The invention discloses a ship weight calculation method based on dock water inlet flow, which comprises the following steps: preparing a cavity with a closed lower end, forming an accommodating cavity in the cavity, communicating the accommodating cavity with a liquid source through a liquid inlet channel, arranging a flowmeter and a valve on the liquid inlet channel, and arranging a ship in the accommodating cavity; acquiring the density of the liquid source, and calculating the bottom area of the cavity; the valve is opened, and liquid in the liquid source is fed into the containing cavity; after the ship floats, closing the valve, and recording the total volume of inlet liquid according to the flowmeter; the draft height in the containing cavity is obtained; calculating the weight of the ship according to the bottom area, the liquid level height and the total volume of inlet liquid; according to the ship weight calculation method based on the dock water inlet flow, the weight of the new ship during launch