选择了几个典型非线性方程组,从收敛可靠性、计算成本和适用性等指标分析对比了不同算法。
Convergence reliability, computational cost and applicability of different algorithms were compared by testing several classical equations of nonlinear equations.
计算结果表明,广义协调元对于求解结构几何非线性问题同样具有精度高、收敛快等优点。
Numerical results indicate that the generalized conforming element has the advantages of high accuracy and uniform convergence to geometrically nonlinear problem of structures.
在每次成功收敛非线性分析的最后,用旧的总荷载系数与当前荷载比的总和计算总荷载系数。
The total load factor is computed as the sum of the old total load factor and the current Loading Rate at the end of each successfully convergent nonlinear analysis.
本文讨论了非线性多组分液相色谱速率模型求解过程中两种不同的插值方式即线性插值和拉格朗日插值对模型计算结果收敛速度的影响。
Two interpolation methods, which are linear interpolation method and the Lagrange interpolation method, are compared for calculating the rate model of multi-component nonlinear liquid chromatography.
对于非线性对流占优扩散方程,不仅可以消除因对流占优项引起的数值振荡现象,还可以加快收敛速度、提高计算效率。
For the nonlinear convection-dominated diffusion equation, this method can not only stabilize the numerical oscillation but also accelerate the convergence and improve the computational efficiency.
二维非线性磁场问题的计算表明,这一方法收敛很快,是求解非线性磁场和涡流问题的一种有效解析法。
It is found that the method converges rapidly and is efficient for determining magnetic filed and eddy current in two dimension nonlinear ferromagnetic materials.
给出了一种新的求解非线性方程的迭代方法,该算法至少是5阶收敛且不用计算导数,具有收敛速度快,计算精度高的特点。
In this paper we present a new iteration method with high accuracy for solving nonlinear equations, this method has not only 5-order convergence but also avoids the operation of derivatives.
计算机仿真结果表明该算法的收敛性能优于粒子群优化算法,并且在非线性盲信号分离中是有效的。
The computer simulation results showed that the proposed algorithm was superior to original particle swarm optimization algorithms and was effective in separating nonlinear blind sources.
由于计算中存在着材料非线性、几何非线性以及接触非线性问题,为了提高计算的收敛性能,采用了小时间计算步长。
Because of material nonlinear, geometry nonlinear and contacting nonlinear, the small time step is adopted to improve convergence of the calculation.
对于非线性对流占优扩散方程,不仅可以消除因对流占优项引起的数值振荡现象,更重要的是可以加快收敛速度、提高计算效率。
For the nonlinear convection-dominated diffusion equation, the method can stabilize the numerical oscillation, accelerate the convergence and improve the computational efficiency.
如果该非线性分析收敛失败,包括检测出结构不稳定,则用旧的荷载比乘以备份比,来计算新的荷载比。
If the nonlinear analysis fails to converge, including the detection of a structural instability, a new Loading rate is compute by multiplying the old rate by the Backup rate.
如果该非线性分析收敛失败,包括检测出结构不稳定,则用旧的荷载比乘以备份比,来计算新的荷载比。
If the nonlinear analysis fails to converge, including the detection of a structural instability, a new Loading rate is compute by multiplying the old rate by the Backup rate.
应用推荐