QR decomposition can improve the condition number of a matrix and then improve the numerical stability.
QR分解可以改善矩阵条件数，从而提高数值稳定性。
This paper discusses the numerical stability and time step criterion for the finite element solution of viscoelastic problems.
本文讨论粘弹性问题用有限元求解时的数值稳定性及步长判据。
Smoothness constraints can be incorporated into the objective function, which can improve the numerical stability of the inversion.
详细推导了粗糙度函数，并将粗糙度函数加入到模型函数中去，实现了模型的光滑约束；
In the paper, a criterion is also presented to determine the numerical stability of any integration method solving complex nonlinear problems from engineering practice.
文中建议了一种判定工程实际问题之非线性数值积分稳定性的实用办法，并成功地应用于重载列车动力学分析。
In order to further improve the numerical stability of solution of equation, the orthogonal transformation technique based on PMU is used to solve the problem of state estimation.
为了进一步改善求解方程的数值稳定性，利用正交变换技术来求解状态估计问题。
This paper proposes a new algorithm based on conformal mapping and FDTD method, and derives the numerical stability and numerical dispersion equations of conformal mapping FDTD algorithm.
本文提出了新的保角变换FDTD算法，推导了保角变换FDTD算法的时间稳定性和数值色散方程。
Numerical examples are presented to show the effects of viscoelastic coefficient on the stability boundaries.
给出的数值算例说明了粘弹性系数对稳定性边界的影响。
Numerical results show that the LRKOPT method has better numerical stability and its calculation efficiency prior to the IMPBOT one.
数值结果表明LRKOPT方法具有很好的数值稳定性并且LRKOPT方法的计算效率优于IMPBOT方法。
First, now in all common numerical methods for the satellite dynamics equations the most important problem that needs to be improved is stability problem.
首先，目前在卫星动力学中常用的所有人造卫星运动方程的数值解法有待改进的最重要的问题就是稳定性问题。
The linearized problem is analyzed and stability boundaries which characterize instability of a plate are obtained by means of numerical and analysis methods.
采用分析与计算相结合的方法着重讨论了热屈曲的线性化问题，获得了反映环板失稳特征的稳定边界。
The stability analysis of arch dam abutment rock mass include numerical method analysis and model experiment analysis.
拱坝坝肩岩体的稳定分析方法包括数值分析法和模型试验法。
Analysis and numerical experiments verify the stability, the precision and the parallelism.
理论分析和数值试验检验了算法的稳定性，精度和并行性。
In the course of algorithmization, we should select arithmetic with high numerical stability and controlling error and computational effort little and saving memory space.
在算法实现过程中，选择数值稳定性高、误差可以控制、计算工作量少和尽可能节省内存空间的算法。
The method takes into consideration the numerical and geometrical characteristics of contours, and therefore has better stability and reliability.
该方法考虑了原等高线的数值特征和几何特征，因而具有较好的稳定性和可靠性。
A large amount of numerical experiments indicates that the improved algorithm has good computing stability and high accuracy.
大量数值实验表明，改进算法具有良好的计算稳定性和较高的计算精度。
Both the impulse equations of structural dynamics and the solution were established, and the (numerical) stability and accuracy of the integral formulation were also discussed.
在结构动力分析中提出了建立冲量方程并求解的方法，给出了该方法的积分格式并讨论了其数值稳定性、精度等数值特性。
Selection of deformation parameters is very important in numerical computation and stability evaluation of the jointed rock masses engineering.
在节理岩体工程的数值计算及稳定性评价中，变形特征参数的选择至关重要。
To investigate into shallow water effect, numerical simulations of the fishtailing oscillation in shallow water and stability analysis have been carried out.
为了调查浅水效应，还进行了浅水中的鱼尾状摆动的数值模拟和稳定性分析。
Applying the numerical simulation program ANSYS to analyze the stability of pillar, it proved pillar is stable.
运用ANSYS程序对煤柱的稳定性进行了数值模拟，验证了煤柱的稳定性。
In this paper, a new numerical method for determining the dynamic stability of complex power systems is presented.
本文给出了一种判定复杂电力系统静态稳定性的数值方法。
For the model with time-dependent birth pulses, using the stroboscopic map, the theory on bifurcation and numerical analysis, the existence and stability of the positive equilibrium are obtained.
对具有密度依赖生育脉冲的模型，运用频闪映射，结合分支理论和数值分析，得到了正平衡态的存在性、稳定性；
The parallel algorithm possesses better numerical stability and parallelism content.
该算法具有较好的数值稳定性，能够获得较大的并行度。
During the construction of tunnel, FLAC numerical simulation is used to analyse the stability of shallow tunnel under unsymmetrical pressure for safe control.
对于隧道施工过程的安全控制，采用FLAC进行数值模拟分析浅埋偏压隧道稳定性。
The result in this paper about the first mode of stability and the numerical transition prediction about plate fit the result of experiments very well.
本文给出的平板边界层第一模式的稳定性分析和转捩区数值预报结果，与已有的实验结果一致。
On the basis of the asymptotic stability of generalized delay differential equations(GDDEs), the numerical solutions of one block methods for GDDEs were analysed.
在广义延迟系统渐近稳定的前提下，分析了用块方法求解广义延迟系统数值解的稳定性。
On the other hand, the stability and precision of numerical computation are the chief concerned matters in single kinetic issues, which undoubtedly reduce the computation speed.
另一方面，纯力学问题中数值计算的稳定性和精度是首要问题，这无疑会影响到算法的效率。
The problem of stability in the numerical integration schemes of nonlinear dynamic analysis of structures is discussed by using matrix and norm theory on a rigorous and complete basis in this paper.
本文在严格、完整的基础上，利用矩阵范数理论研究了结构非线性动力分析中数值积分格式的稳定性问题，给出了判别单自由度非线性动力方程积分格式稳定性的一般数学准则。
Numerical test study about the stability and precision of the method is made by discussing the solution of SH wave motion.
对采用该方法求解点源出平面波动问题时的数值稳定性和精度进行了数值试验研究。
Numerical test study about the stability and precision of the method is made by discussing the solution of SH wave motion.
对采用该方法求解点源出平面波动问题时的数值稳定性和精度进行了数值试验研究。
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