Least square method of polynomial or the method based on the given function are used to fit pumpcharacteristiccurve in pump selection or operation.
在水泵的选型或运行中,通常采用多项式的最小二乘法或根据假设的函数关系来拟合水泵性能曲线。
2
Pump selection, and sometimes need to consider the production process requirements, selection of different shapes QH characteristiccurve.
选泵时,有时须考虑生产工艺要求,选用不同形状Q - H特性曲线。
3
Through a study in characteristiccurveof the engine and hydraulic pump, the matching efficiencies between engine and fixed and hydraulic variable displacement pump were analyzed respectively.