数值稳定性

Compared with the traditional numerical method,the periodic orbit extracted by the analytic approach is more accurate,requires smaller memory size and is more applicable in real time systems;Furthermore,it is more suitable for stable analysis and control of the systems.

与传统的数值提取法相比，所提出的解析法具有提取的周期轨道精确度高、周期轨道信息的存储量小、便于实时应用、易于进行稳定性分析和控制等优点。

It shows that the mathematical expressionof the stability parameter H?? of the flow of a power-law fluid in annulus with the innercylinder executing a planetary motion established in this paper, as well as the method ofnumerical calculation, is correct.

说明了本文建立的幂律流体在内管做行星运动的环空中流动的稳定性参数H′的数学表达式及数值计算方法的正确性。

In order to further test the implemental effects of the new rule on earning preannouncement we consider to make our systematic analysis of the stability of the stock market in terms of the fluctuation.

我们尝试利用波动率数值的时间序列表现进行研究，力图了解：①预告公司股票日收益率序列的时变条件方差是否满足稳定性要求。

L2-gain design is adopted to suppress this disturbance. Also, controller is obtained by using recursive Lyapunov function

对跟踪系统鲁棒性和稳定性的讨论以及数值仿真结果验证了所设计控制器的有效性。

Numerical experiments shows that the present method is stable and yields accurate solution for high Reynolds number problems.

数值实验结果证明了该格式的精确性、稳定性和对高网格雷诺数问题的强适应性。

By this way, the extend and degree of the masses were illustrated intuitionally and it was made out that the main destroying form was toppling rockfall .

在分析砂、泥岩特性的基础上，通过离散元数值分析，研究了万县长江库岸危岩在不同工况下的稳定性，直观地揭示出危岩在不同工况下的破坏程度，得出危岩的主要破坏形式为倾倒式崩塌，并总结出危岩的大规模破坏发生在蓄水回水期，为三峡危岩治理的对策及时间提供了有价值的参考。

When using Runge - Kutta method in digital simulation for continuous systems, in order to ensure the stability of numerical computation and make simulation results having enough accuracy, the step - change strategy is usually adopted.

在使用龙格一库塔方法对连续系统进行数字仿真时，为了保证数值计算的稳定性以及仿真结果具有足够的精度，通常采用变步长策略。

Three aspects have been studied theoretically in this paper which were based on an analysis of a compliant multleaf journal self-acting air bearing, which are as follows:(1) A set of theoretical analysis method which include the development of .physical and mathematical model, the solution of governing equations and theprediction of static and dynamic performance of the foil gas bearing is proposed.

本文在分析悬臂型弹性箔片径向动压气体轴承工作原理的基础上，做了以下几个方面的工作：(1)建立了悬臂型弹性箔片径向动压气体轴承的物理和数学模型，确立并求解了控制方程，得到了静、动态性能的稳定性分析方法，为数值分析悬臂型弹性箔片径向动压气体轴承奠定了基础。

We use the boundary integral method to simulate the spherically symmetric collapse of a cavitation bubble, a free-surface potential problem having analytical solution. Evolving error curves are given in the thesis, and the influences of various discretization methods on the accuracy and the stability are compared.

我们使用边界积分法模拟空化气泡的球对称溃灭，一个具有分析解的自由面势流问题，给出了计算误差的演化曲线，比较了各种数值离散法对精度和稳定性的影响。

Using two-dimensional numerical simulation of the full hydrodynamic equations, the dynamics of the counterpropagating wave, localized traveling wave and stationary overturning convection with the weakly Soret coefficient is studied.

本文通过二维流体力学基本方程的数值摸拟，讨论了具有较弱的Soret结合的中等长高比空腔中的Counterpropagatingwave，局部行进波及定常行进波的动力特性，探讨了局部行进波的Rayleigh数依赖性及稳定性。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。