Parameter sensitivity analysis of accumulator based on hydraulic dynamics
In order to quantitatively describe the influence on response time of the concrete pump hydraulic system by accumulatorparameters, the method for parameter sensitivity analysis of accumulator was proposed based on hydraulic dynamics. Response time of concrete pump hydraulic system was divided into switching time of distribution cylinder and main cylinder, and calculated individually by using hydraulic dynamics theory. By using the sensitivity factor of the accumulator parameters, the sensitivity of hydraulic' system response time by accumulator parameters from the view of engineering. The results show that the accumulator volume V0has the biggest influence on hydraulic system response time, followed by the highest charging pressure p, and the air pressure P0 of accumulator. The accumulator parameter sensitivity analysis results have laid a theory basis for concrete pump hydraulic system design.