Viscoelastic boundary has the merits of numerical stability and convenience to integrate with computational program. 黏弹性边界具有稳定性好,易于与计算程序结合的优点。
First, we present numerical stability theory of delay differential equations and parallel methods. 首先,我们介绍了延迟微分方程数值解的稳定性理论及并行算法的发展情况。
Time Element Methods in Dynamics and the Analysis of Numerical Stability 动力分析的时间元法及其稳定性分析
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。
Discrete cosine transform ( DCT) is of relatively high accurate and numerical stability in the processing of gravity anomalies. 基于DCT的重力异常数据处理正、反演方法具有较高的精度,计算方法稳定性优良。
Based on the frequency equation of the lower-chord cable of a beam string structure, the numerical stability for cable tension estimation was investigated using a numerical iterative solution method. 基于提出的张弦梁结构下弦拉索频率方程,研究了运用数值迭代求解方法进行索力求解的数值稳定性。
The study shows that the Finite Analysis Method has good numerical stability and accuracy, and it is suitable for viscous compressible turbulent flow calculation. 计算的出口总温、总压等参数与实验较吻合,与其他单独考虑紊流扩散和二次流效应的掺混计算结果比较表明了本文方法的有效性。
Numerical Stability Analysis of TM Wave Transmission Based on FDTD Method 基于FDTD模拟TM波传播的数值稳定性分析
Similarly, construction feature, fast compute, numerical stability and compute complexity of some sequential algorithms for real-time numerical simulation were analyzed. 类似地分析了几类实时数值仿真的串行算法的构造特点、快速性、数值稳定性和计算复杂性等。
The advantages of barycentric interpolation formulations in computation are small number of floating point operations ( flops) and good numerical stability. 重心插值公式具有计算量小、数值计算稳定性好和增加新的插值节点不需重新计算原有插值节点基函数的优点。
It is also shown that the nonlinear static procedure gives a safe estimation of the inelastic seismic response statistically for regular RC frames with good numerical stability. 分析研究表明,采用本文建议的侧力模式进行推覆分析,可在统计意义上可对钢筋混凝土规则框架结构的抗震能力作出偏于安全的估计。
Peculiar multi-variable approximate function which has good numerical stability is proposed. 提出了一种独特的多元逼近函数,它具有良好数值稳定性和直观意义。
In this paper, the response and accumulation of the error of input telemetry data for control loop are analyzed, the error compensation algorithm for the input sequence of the simulation of control loop is constructed, and the numerical stability of the error compensation algorithm is proved. 分析了回路控制数学模型对遥测数据输入误差的响应和积累,构造了回路控制计算输入序列的误差补偿算法,并且证明了误差补偿算法的数值稳定性。
Taking example for line source, effects of stability factor on absorbing boundary capability and numerical stability were studied. 推导了含有稳定因子的二阶Mur条件修正式,并以线源为例研究了稳定因子对吸收边界性能以及数值稳定性的影响。
This paper presents a numerical stability model for the prediction of stall inception in axial flow compressors. 本文给出了一种用于预测轴流压气机旋转失速发生的数值稳定性模型,并描述了模型的理论基础以及求解模型方程的方法。
The mixed method improves the numerical stability, and accelerates the convergence. 为此发展了非分裂方式的混合解析/数值方法,在湍流模型数值计算中提高了数值稳定性,而且加快了计算的收敛速度。
We study the Gauss-Newton method and give a set of sufficient conditions for the convergence of asymptotic numerical stability. 给出了Gauss-Newton迭代公式具有渐近数值稳定性的充分条件。
It is optimal in the sense of linear minimum-variance and has excellent numerical stability. 在保证算法在线性最小方差意义下为最优的同时,具有很好的数值稳定性和鲁棒性。
In addition, the fitting effect of boundary and numerical stability of the moving least square method are discussed. 此外还讨论了滑动最小二乘法中边界拟合效果的问题以及这种方法的稳定性,滑动最小二乘法对边界有较好的模拟效果,稳定性也很好。
AGA has better calculation efficiency and numerical stability than SGA and random methods; AGA计算效率和数值稳定性均比SGA和随机投点法有较大提高;
The Pressure Implicit Splitting Operator algorithm is extended, and the accuracy of computation is improved and numerical stability is enhanced. 完善了一种压力隐式算子分裂算法,使之应用到燃烧过程和不稳定燃烧中,提高了计算的精度和稳定性;
As regards the numerical methods presented above, we have made a systematic study on the construction of the methods, the specific formulas and their convergence and numerical stability. 对于以上的数值方法,比较系统的研究了方法的构造、具体的计算公式以及它们的收敛性和数值稳定性,并进行了数值试验。
The principle and method to select the weighting function and initial value are analyzed when robust estimation theory is applied in state estimation, and the veracity and numerical stability of estimation are both considered. 分析了抗差估计理论应用于状态估计时,初值和权函数选取的原则及一般方法,兼顾了估计结果的准确性和数值稳定性。
The numerical stability and dispersion properties of the two dimensional ( 2-D) US-FDTD method is studied. 研究了二维US-FDTD方法的数值稳定性和数值色散特性。
The simulation animation vividly demonstrates the impact of selecting different time steps and space steps on the numerical stability. 应用时域有限差分法仿真得到的动画,形象地展示了人为选取的时间步长和空间步长对时域有限差分法的数值稳定性所造成的影响。
Theoretical analysis and numerical experiments show the new methods not only keep the advantage of rapid speed of PRMs, but also obviously improve the numerical stability and computational accuracy of PRMs. 理论分析和数值试验表明,新方法不仅保持了PRM方法计算速度快的优势,且明显改善了数值稳定性和计算精度。
When solving rank deficient systems, dimension change is necessary for achieving system decomposition and numerical stability. 在不满秩系统求解中,为实现系统分解和数值稳定性,提出必要的维数变化方法。
Numerical results show that it is suitable for nonlinear constrained problems and has good numerical stability. 数值试验的结果表明该算法能够满足非线性约束优化问题求解的需要,且具有良好的数值稳定性和收敛性。
The precise time-integration methods for solving the delay parabolic equations are given and numerical stability is proved. 给出了求解延迟抛物型微分方程的精细时程积分法,并证明了数值稳定性。
The numerical stability and the error estimate of the proposed method are also discussed in this thesis. 3. 此外还对方法的数值稳定性和误差估计进行了探讨。