着重介绍了数值逼近方法中的多项式曲面函数模型逼近法,并通过实测数据对多项式函数模型的精度进行分析。
The paper emphasizes on the methods of polynomial surface approximation which is part of numerical approximations, and analyzes the precision of polynomial function model through the measured data.
文中还设计了一种能满足位移边界条件的多项式作为振型试函数,从而用里兹法得到相应的上限值。
A kind of polynomial satisfying the displacement boundary conditions is designed, which makes it possible to evaluate the upper limit of fundamental freqrency by Ritz method.
无论是曲面拟合法还是路径线法,各量计线上增殖误差可用时间多项式函数来表示,且多项式最高幂次数与量计线数目有关。
Propagation error for each gage can be expressed as polynomial of time and the highest power of polynomial ism-1, which mis the number of gages.
无论是曲面拟合法还是路径线法,各量计线上增殖误差可用时间多项式函数来表示,且多项式最高幂次数与量计线数目有关。
Propagation error for each gage can be expressed as polynomial of time and the highest power of polynomial ism-1, which mis the number of gages.
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