数值分析

Experiments that use single-pulse laser to ablate small steel ball in atmosphere were conducted.

采用单脉冲激光进行了大气环境下激光烧蚀小钢珠实验，得到其推进效应参数，发现并分析了钢珠在不同放置位置时不同的物理现象；为了得到一系列定量实验数据，采用自行研制的激光冲量靶仪进行了单脉冲激光烧蚀推进效应实验测试，得到了不同环境条件、不同靶材料的激光推进效应参数，并与国外的实验数据以及数值计算结果进行了比较。

In this paper, taking the Huangpu River ITT construction as the background and based on model experiment, theoretical analysis and numerical simulation, the above-water operations of large-scale tunnel element are studied.

本文以黄浦江越江沉管隧道为背景，在模型试验、理论分析以及数值仿真的基础上，对上述环节中涉及的诸多内容进行了研究。

It is a direct scheme and can avoid accumulated error resulted by iterative methods.Value results have illustrated that our algorithm has high precision.

该方法是一种直接解法，可以减少迭代法所产生的误差积累，数值实验验证了理论分析的正确性，表明该算法具有很高的精度。

With ADAS 3-D data assimilation system, reanaiysis data of NCEP, radar echo andGMS5 satellite image had been applied to simulate the event.

本文利用非静力平衡的中尺度模式ARPS(V5.2)，使用1°×1°NCEP再分析资料，运用ADAS 三维同化系统对雷达回波、红外云图进行了同化，然后进行了48小时数值模拟，并设计了四个敏感性试验。

In this dissertation, the mechanical behavior of the metal adhesively bonded composite joints under loading have been systematically investigated by numerical calculation methods and experiments, and effects of shape dimensions and physical parameters of joints on stress distribution and strength of adhesively bonded joints have been placed emphasis upon.

本文在对国内外关于金属-胶层复合材料接头力学性能数值研究及发展现状进行综述的基础上，运用有限元法并结合实验手段主要研究了胶接接头承载后的力学行为，综合考虑了几何尺寸和物性参数对接头强度和应力分布的影响，并运用层次分析法对胶接质量进行综合评估，综合考虑接头形式，制造工艺，操作人员素质等因素的影响。

The stress distribution of adhesively-bonded metal/metal single lap joints under tensile shear loading is analysed using elastic-plastic finite element method .The influence of lap length on the strength of adhesively bonded metal joints which are bonded with phenolic resin and acrylic resin respectively is discussed in detail. It is shown that adhesive has great influence on the stress distribution of the lap region. With the increment of lap length, the stress concentration of adhesive layer decreases.

本文在对国内外关于金属-胶层复合材料接头力学性能数值研究及发展现状进行综述的基础上，运用有限元法并结合实验手段主要研究了胶接接头承载后的力学行为，综合考虑了几何尺寸和物性参数对接头强度和应力分布的影响，并运用层次分析法对胶接质量进行综合评估，综合考虑接头形式，制造工艺，操作人员素质等因素的影响。

In the past twenty years continued interests have been focused on adiabatic rapid population transfer and coherence in atomic or molecular system. The stimulated Raman adiabatic passage process has been intensively studied experimentally, analytically, and numerically.

近二十年来，随着科学研究的不断进步，人们对运用绝热快速通道控制原子或分子的布居数和相干性产生了较大的兴趣，并运用受激拉曼绝热过程进行了数值模拟、实验和分析。

In this article, we have analyzed the effect of multi-wavelength selection in white-light interferometer on the visibility of the adjacent side fringes to central fringe.

本文分析了白光干涉仪中多波长值的选择对条纹可见度尤其是对零级条纹附近可见度的影响，给出了使用相干长度都较短的两个和三个波长组成的光源情况下波长值优化选择的原则及其数值模拟的例子。

A model of coupling piston dynamic behavior to Cylinder-Piston-System lubrication is presented and its numerical simulation is performed in two conditions of fluid lubrication and mixed lubrication of rough surfaces through OCAM.

2建立了缸套-活塞润滑与活塞动力学行为的耦合分析模型，用顺序耦合法进行了完全流体动力润滑和考虑微凸体接触两种情况下的耦合数值仿真分析。

The analysis model of coupling crank bearing lubrication to system dynamical behavior is established in PRCS, and its numerical simulation is completed through OCAM.

考虑润滑在多体系统动力学行为中的作用，建立了活塞-连杆-曲轴系统的系统动力学行为与曲轴主轴承油膜动力润滑的耦合分析模型，并进行了数值仿真分析。

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。