The invention relates to the technical field of special vehicles and particularly provides a
tank pressure distribution test method and a tank
internal pressure test device for a
tank truck. The testmethod comprises the following steps: (1) setting a sampling area in a tank body, fixing
pressure sensing devices for acquiring
pressure data in the sampling area, and setting a
data acquisition device in
signal connection with the
pressure sensing devices to acquire the
pressure data; and (2) injecting liquid into the tank body to enable each
pressure sensing device to be immersed into the liquid, starting the
tank truck to drive the tank body to move, and obtaining and
processing test data. The pressure distribution at an end socket is obtained in a real test environment, the accuracy of
test data can be improved, technicians are helped to master the pressure intensity distribution in the tank body when the vehicle runs, effective data support is provided for the structural design of thetank body in the future, and great help is provided for improving the safety of the whole vehicle.