Research on response characteristics of weighing sensor of mixing vessel under medium and long period surge

Under surge condition, the composite motion of heave, roll, pitch, sway and surge occurs in the concrete mixing vessel, which affects the measurement accuracy of the load cell. Taking the S-shaped load cell as the test object, the measurement accuracy of the load cell under the condition of complex force field is tested by using the six degree of freedom test platform to simulate the medium and long period surge sea conditions. The test results show that: the measured value of the load cell is affected by the sway acceleration, the surge acceleration and the heave acceleration, and is positively correlated with them; when the meaningful wave height is 1m and the average zero crossing period is 6 ∼ 10s, the direct weighing accuracy of the concrete mixing vessel can not meet the requirements of the domestic standard.