基于曲面拟合的水泵性能曲线参数化研究

根据水泵叶片调节性能曲线的变化规律选择适当的基函数,基于曲面拟合法研究叶片安放角、流量、扬程(轴功率)3个参量之间的关系,建立参数化模型,提出了模型的求解方法。计算实例表明,该模型拟合相关系数高,且有简明固定的数学表达式,有利于进一步的应用和推广。

Study of Parametric Pump Performance Curve Based on Surface Fitting

By selecting the appropriate basis functions according to the variation of vane pump regulating performance curves,we analysed the relationship in blade angle,flow,and head(or shaft power) based on surface fitting,and a parametric model was established,the solution of the problem was proposed. The calculation of the example shows that the model has a high correlation coefficient,and has a simple mathematical expression,which is helpful for further application and popularization.