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以某款混凝土泵车为研究对象,对其进行了4组转速实验,测得了每个排量脉宽下实际泵送次数。并在建立该泵送系统的AMESim模型基础上,仿真推算出了每个泵送次数所对应的斜盘开度,从而得到了4组排量脉宽与斜盘开度的对应关系。最后利用matlab软件对这4组对应关系进行了拟合,得到了排量脉宽与斜盘开度的数学关系式,从而达到了全面分析恒功率变量泵特性的目的。
Taking a certain type of concrete pump truck as the research object, four sets of speed experiments were carried out on it, and the actual number of pumps under each pulse width was measured. Based on the AMESim model of the pumping system, the opening of the swashplate corresponding to each pumping frequency was simulated and calculated, and the corresponding relationship between the displacement pulse width and the opening of the swashplate was obtained. Finally, the matlab software was used to fit the four groups of correspondences, and the mathematical relation between displacement pulse width and swashplate opening degree was obtained, so as to achieve the purpose of comprehensively analyzing the characteristics of constant power variable pump.