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稳定收敛
相关语句
  stable convergence
    The results show that the computational formulas given in this paper and the numerical method are accurate and stable convergence,quick nicety.
    结果表明 ,给出的求解公式及计算方法是正确的 ,且稳定收敛、迅速准确
短句来源
  stably convergent
    The model test showed that the method is more accurate , stably convergent and practical method.
    模型试验表明该方法是一种较为精确、稳定收敛和实用的方法。
短句来源
    The model test showed that forward modified method is more accurate, stably convergent and practical method.
    模型试验表明,正演修正方法是一种稳定收敛 和实用的方法。
短句来源
  “稳定收敛”译为未确定词的双语例句
    Inversion results show that quick calculation,steady convergence,little request for inversion starter and veracious results are the characteristics of this method.
    计算结果表明,这种方法计算快速、稳定收敛,对反演初值要求不高,结果准确。
短句来源
    Nonlinear conjugate gradient optimize is used to realize the first arrival tomography inversion.
    利用非线性共轭梯度优化方法来实现初至旅行时层析反演,反演过程稳定收敛
短句来源
    The method was used in some theoretical models and FAEM field data, and the result is satisfactory and helpful to the interpretation of FAEM data.
    经过对理论模型和实测数据试算表明,该方法运算稳定,收敛速度快,是一种有效的航空电磁数据处理解释方法。
短句来源
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  stable convergence
The test of the program on 17 experimental data sets showed the fast and stable convergence in all the cases.
      
Stable convergence of square integrable martingale array
      
Results for two analytical and two sheet metal forming test problems reveal that the new Kriging approach leads to a fast and stable convergence of the optimization process.
      
ProBLISS significantly reduces the computational cost and shows stable convergence while maintaining accuracy.
      
Stable convergence acceleration using Laplace transforms
      
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  stability convergence
This helps to ensure stability/convergence of the proposed iterative scheme.
      


Based on the principle described before, the authors propose a new rapid 2 - D MT inversion method. Under the suitable modeling grid, it erases efficiently the excessive structure and the overf of data in the 2 - D approximate inversion by minimizing the square of the first der-ivative of the longitudinal and lateral model. Meanwhile, it introduces the whole controlling function and calculates Lagronia factor by Newton's method for the single solution, which ena-bles the inversion to converge quickly and stably.The...

Based on the principle described before, the authors propose a new rapid 2 - D MT inversion method. Under the suitable modeling grid, it erases efficiently the excessive structure and the overf of data in the 2 - D approximate inversion by minimizing the square of the first der-ivative of the longitudinal and lateral model. Meanwhile, it introduces the whole controlling function and calculates Lagronia factor by Newton's method for the single solution, which ena-bles the inversion to converge quickly and stably.The trial calculation of the theoretical model shows that the results of this inversion method are better than those of similar ones given in recent years. In addition, the results of the inversion shown by field data are very satisfactory, which proves its good practical value.

在已有原理的基础上,本文给出了一种新的大地电磁二维快速反演方法。该方法在合理的模型网格下,求模型的纵向和横向一阶偏导数平方最小,反演得到最平滑模型,有效地消除了二维近似反演中易出现的多余构造和数据过拟合现象。同时,引入总体控制函数以及用牛顿单变量寻根法求拉格朗日因子,使反演快速、稳定地收敛。理论模型试算表明,该方法比近年来发展的同类反演方法效果更好。另外,野外资料的反演也取得了比较满意的结果。

First of all,this paper introduces a"two -dimensional"time axis and the dynamic explicit difference equation is extended through the factors of both δ and θ such that it is sure to obtain the stable and reasonable results for computing nonlinear seismic response of one-dimensional soil layers whatever conditions of the deposits are. Three difference methods are presented in time domain in order to compare with the effects of bedrock and its interface motions,and the responses indicate that the centre difference...

First of all,this paper introduces a"two -dimensional"time axis and the dynamic explicit difference equation is extended through the factors of both δ and θ such that it is sure to obtain the stable and reasonable results for computing nonlinear seismic response of one-dimensional soil layers whatever conditions of the deposits are. Three difference methods are presented in time domain in order to compare with the effects of bedrock and its interface motions,and the responses indicate that the centre difference method is appropriate although they are essentially equivalent.The current hyperbolic function in engineering is adopted in existing nonlinear constitutive models of soil since only two correlative parameters must be adjusted to fit the measured damping ratios in numerical integrating of the difference equation. Finally,a few typical examples are given. Numerical analysis shows that compared with the linearization method,the seismic responses are obviously different under conditions of complex deposit and filling it with soft(lower velocity)layers.

本文首先引入一个“二维”时间座标,并通过出因子δ-θ推广的动力显式差分方程,使得在任何情况下上层非线性地震反应均可获得稳定、收敛的计算结果。为了进一步底探讨基底及其界面的扰动影响,文中给出了三种不同的差分格式,结果虽基本一致,但仍以中心差分格式为宜。土的非线性本构关系,在多种可供采用的模型中,本文选取了工程上常用的“双曲骨架”模型,其优点在于:在积分过程中,只需调整两个相关因子,即可同时拟合土层的实测阻尼。最后,本文通过几个典型算例的分析表明,对于土层结构复杂且间有软弱(低速)层时,其地震反应与等效线性方法给出的相应结果相比,具有明显差异。

By introducing composite inversion ideas,the problem of ground motion inversion is studied in this paper.According to the mechanical characteristic of earthquake effect,a new method named as statistical average algorithm (SAA) is presented.The validity of the method is proved by both theoretical analysis and numerical simulation,which make the utilization of this algorithm more reasonable.

本文运用复合反演的观点研究结构参数未知条件下的地震动反演问题。根据地震作用的力学特性,将其具体化为估计输入的修正条件,文中给出了一类反演算法。理论分析及算例表明,该算法具有稳定的收敛特性以及良好的反演效果。

 
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