The Fitting Algorithm of Fan Characteristic Curve
The Fitting Algorithm of Fan Characteristic Curve
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发表时间：
2009
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通讯作者：
LU Xue-yan
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作者：
LU Xue-yan
高精度的风机特性曲线通常采用最小二乘法或三次样条插值法对散乱的实验数据进行拟合，提出了一种新的扩展插值方法，实现了风机特性曲线的高精度拟合，实例拟合结果表明，该方法比传统的插值方法能实现更高精度的拟合由于采用了分段插值区域附近的实验数据，因此可以实现整个插值区域的最佳拟合。
Usually,the high precision fan characteristic curve is formed by fitting scattered experimental data using Least Square Method or Cubic Spline Interpolation Method,but both approaches are really hard to get the best fitting effect.A new extended interpolation method to realize the high precision fitting of fan characteristic curve is presented.The fitting result of a practical example shows that this method can implement higher precision fitting compared to those mentioned above under same conditions.Owing to using the experimental data around the subsection interpolation area,it can realize the best fitting in the whole interpolation area.