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A numerical simulation of Wiener model is provided to validate the effectiveness.

通过一个Wiener模型的数值仿真来验证方法的有效性,仿真结果表明所提辨识方法切实可行。

Moreover, if a method is algebraically stable, then the numerical solutions of this method can preserve the stability property of the analytic ones.

并且证明了如果一个方法是代数稳定的,则该方法的数值解保持解析解的渐近稳定性。

On the other hand, the dynamics in the mean motion resonances in the main asteroidal belt (the Kirkwood gaps and also accumulations of asteroids in definite region) is still not well understood.

而我们之所以选择映射方法是因为映射方法与解析计算和直接数值积分相比,有着速度快、无积累误差、理论分析简单等优点,适于研究动力系统的长期演化问题。

Based on the geometric deformation, finite element and false structure methods,this paper analyses and deduces the calculating method for the critical strength of the strut -type axile pressure members.

本文利用几何变形协调、有限元和其轭法对具有撑杆轴压构件屈曲的数值计算方法进行了理论分析和推导。所建立的计算方法概念清楚,使用方便,这为进一步进行撑杆式预应力钢管混凝土轴压构件屈曲分析建立了理论依据

A straight inlet baghouse which can effectively reduce energy consumption of equipment in operation and lengthen the service life of fabric bags, as well as gas flow structure in the tank body have been presented, and numerically simulating the gas flow distribution in the tank body being carried out by using calculated flow dynamics method, providing a method and parameters for adjusting the gas distributing plates structure to realize reasonable flow rate distribution in the tank body.

摘要介绍了能有效降低设备运行能耗、提高滤袋寿命的直通式袋式除尘器及其箱体气体流通结构,并利用CFD方法对箱体流量分配和气流分布进行数值模拟,给出了实现箱体流量合理分配的气流分布板结构调整方法和参数。

It is proved that the dual time step algorithm is efficient in the simulation of unsteady flow with the prediction of vortex shedding over circular cylinders and shock buffeting over bicircular airfoils.

在非定常流动的数值模拟中引入隐式双重时间步方法,并对2种经典的非定常流动现象进行计算,取得令人满意的结果,证明双重时间步方法具有较好的精度和较快的收敛速度。

Then, studying the theories and algorithms of Hidden Markov Models in detail, and discusses some issues in actual applications and gives corresponsive solution means to them. At last the functions of HMM used in cutting vibrations forecast are given.

第三章应用HMM中的Hterbi算法进行信号的数值滤波处理,讨论了振动信号的特征提取方法,以及幅值谱矢量的标量量化技术,最后提出了机床切削过程中的FFT-HMM颤振预报方法。

Alternating Direction Implicit-Finite Difference Time Domain is unconditionally stable and the maximum time step size is not limited by the Courant stability condition, but rather by numerical error.

摘要基于交替方向隐式技术的时域有限差分法是一种非条件稳定的计算方法,该方法的时间步长不受Courant稳定条件限制,而是由数值色散误差决定。

In this paper , we consider the Expanded Mixed Finite Element Method and mixed covolume method for the quasilinear parabolic integro-differential equation and quasilinear parabolic problem.

本文中我们采用扩展混合有限元方法和混合体积元方法数值模拟了二阶拟线性抛物型积分微分方程和二阶拟线性抛物问题。

A mathematical model of optical axis fitting is put forward here. The model combines analytic method and numerical analysis method together with consideration of the actual decentration measurement.

提出一种光轴拟合的数学模型,该数学模型结合了解析方法和数值分析方法,考虑了中心偏测量的实际情况,在严格的数学模型基础上做了合理的简化。

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歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车,和一双合并为一移交&整个lotta爱&。

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