数值分析

For nonlinear harmonic oscillators, we close the flow equations and acquired an explicit expression of energy-level. For nonlinear-coupled harmonic oscillators, we close the flow equations and diagonalize the Hamiltonian by numerical analysis methods.

对非线性谐振子系统，计算出系统参数随流参数变化的一组方程及系统的能级；对耦合的非线性谐振子系统，得出系统参数随流参数变化的一组非线性方程，数值分析对角化了系统。

For nonlinear harmonic oscillators systems of coordinate coupling and momentum-coupling, one obtains a group differential equations for physical parameters about flow parameter by the numerical analysis method, one finds this method can diagonalize the Hamiltonian.

通过数值分析物理参数随流参数变化规律，给出了对角化的哈密顿量。

The stress field of diamond reinforced porous metal matrix composites are simulated using the model under the shear load.

数值分析了以金刚石为增强颗粒的多孔金属结合剂复合材料在横向剪切载荷下的应力情况。

Finally, the project is studied by finite difference analysis method and guidance for construction is brought.

最后，对实际工程进行数值分析，提出对施工中的指导意见。

An electromagnetic numerical analysis, set finite difference method, finite element method and the method of moments as one basis for teaching materials.

详细说明：一本的电磁数值分析方面的，集有限差分法，有限元法和矩量法为一体的基础教材。

Significance of using numerical methods which are appropriate to discontinuous and large deformation problems is emphasized.

强调了能够解决不连续、大变形问题的数值分析方法在这一领域的意义。

In addition, a brief numerical analysis to the error of this discrete scheme is given.

同时，对这种离散格式的截断误差给出了简单的数值分析。

Through analyzing the data of tests, a rheological constitutive equation as a function of disturbing load and stress as well as time is established; and the constitutive equations are proven with test data.

通过对试验结果的数值分析，建立起以应力状态和扰动载荷及时间为白变量的扰动流变本构方程，并用试验数据对其进行验证。

The traditional tunneling technology is dominantly based on experience analogy and small amount of numerical analysis, which severely restricts the development of the tunneling technology.

目前，传统隧道的相关技术主要依靠经验类比和少量的数值分析，其局限性将会大大限制隧道技术的发展。

Based on the theory of heat transfer, hydrodynamics and the theory of metal solidification, by using numerical analysis technology, database technology and visual technology, this paper provided a simulation and check method for the process design to simulate the fluent field and temperature field of the filling solidification and cooling, and can predict the casting quality according to these fields, thus, by this way, improved the quality of casting draft design.

该课题就是为工艺设计提供模拟和校核手段，以传热理论、流体力学及金属凝固理论等为基础，利用数值分析技术、数据库技术和可视化技术等对铸造过程进行仿真，从而模拟出在铸件充型、凝固和冷却中的流场和温度场，并根据这些物理场对铸件质量进行预报，从而提高铸件工艺设计的质量。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。