摘要
介绍了用正交函数作最小二乘拟合的方法对离心泵性能曲线进行拟合以及详细的计算步骤,进而采用Visual C++语言编制了计算程序。计算实例表明,该方法得到的拟合可靠、计算精度高,方便快捷,可用于离心泵的选型与计算,能提高工作效率。
Least square fitting using orthogonal function for centrifugal performance curve is de- scribed.Calculation steps are also analyzed in de- tail.Additionally,calculation program using Visual C++ is introduced.It is illustrated that the method,being easy operation,reliable and high ac- curate,can be used to selection of centrifugal pump and improve efficiency.
出处
《石油库与加油站》
2007年第2期42-44,共3页
Oil Depot And Gas Station
关键词
离心泵
性能曲线
拟合
最小二乘法
centrifugal pump
performance curve
fitting
and least square
作者简介
吴玉国(1977-),男,硕士,2004年毕业于辽宁石油化工大学,现从事教学工作。