模拟

The explicit dynamic code DYNA3D was used to simulate the drawing process of cross member part.

对汽车底盘横梁拉深成形过程进行了数值模拟，对比分析了数值模拟结果与实验结果，同时讨论了凸模的虚拟冲压速度对数值模拟结果的影响。

The article incorporates Huygens principle with existing fire behavior models of surface fire spread,crown fire spread,fire acceleration,builds forest fire simulation models which fit to Anning s terrain,and develops related dynamic modules for Yunnan Province.

利用惠更斯原理进行林火蔓延模拟，结合国际上成熟的林火行为模型(Rothermel的地表火模型，Van Wagner的树冠火蔓延模型，McAlpine的林火加速模型)，建立适合云南省特殊地形的林火蔓延动态模型，并开发相应的动态模拟模块，在云南特殊地形地貌上的林火蔓延模拟做出一定探索。

In addition, the imitation method of spin-up and spring back drag loads for column style drop test-bed is discussed, and determined the reasonable imitation style, perfected drop test technology.

另外，本文对国内立柱式落震试验台的起转和回弹载荷模拟方法进行了研究，确定了合理的模拟方式，完善了落震试验技术；通过模拟起落架落震试验的钢球冲击钢板的冲击实验，对机轮垂直载荷的精确测量问题进行了初步的研究；研制了一套监测起落架投放高度的测量系统；用Turbo C和VC++6.0编写了落震试验数据采集和处理系统的应用软件。

The numerical simulation result is competent, and can provide important reference for the design of die and drawing technology. It is showed that finite-element method can save much time and cost. It is a useful tool for engineering analysis.

模拟结果表明，有限元数值模拟方法可以节省大量的费用和时间，能够为拉深工艺设计及模具设计提供重要的参考依据，不失为工程分析的一种有效数值模拟工具。

Next, using the multiple elements and multiple properties of ANSYS software , we had carried on the two-dimensional coupled simulation to electric field, the flow field and the temperature field of the optimized 3KA rare earth oxide electrolysis cell of the fluoride salt system.

其次，再利用ANSYS多场耦合的特性对优化的3KA稀土氟盐体系氧化物电解槽的电场、流场和温度场进行二维耦合仿真模拟，模拟结果与实际吻合，进一步确定了模拟优化电解槽设计的正确性，验证了耦合模型的正确性。

Numerical simulation shows that the location and intensity of the modeled high and low pressure centers is consistent with the observation. The pressure gradient intensity of cyclone closes to observation. The regional distribution, transportation direction, centers of the cold, worm advections have similar characters with fact. On the other hand, the temperature stratosphere simulation result is slightly bigger than the fact.

数值模拟结果表明，模拟高压、低压中心位置和强度与实况较为吻合，气旋的气压梯度强度与实况较为接近；冷暖平流在分布区域、输送方向、强中心位置上也与实况具有较相似的特征，但是温度平流模拟的结果在量值上略大于实况。

This enriched and developed the basic thought of numerical theory, resolved the bottleneck problem that astricts the development of numerical value analysis method, open up a new field for the geomechanic engineering application of 3-D network and numerical value analysis method, it's an available and essential attempt, it's also a necessary trend of numeric times development.

10通过岩体三维节理网络模拟，建立岩体结构的概化模型，基于数值法对岩体进行大量的&数值模拟试验&，获取岩体变形参数，丰富并拓展了数值模拟理论的基本思想，解决了选择岩体参数这一束缚数值分析方法发展的瓶颈问题，为数值分析方法和三维节理网络在岩土工程实践中的应用拓展了一片新的天地，是一种有益而且非常必要的尝试，也是数字时代发展的必然趋势，具有一定的理论意义和应用价值。

The main contents are as follows:(1) Configuration design and Experiment research The projectile configuration of penetration weapon is designed according to the technical and tactics target, including the structure design of the projectile , the structure design of the empennage and the structure design of the concrete target. The simulation experiments studying the relation between velocity and concrete intensity and penetration depth have been carried out.

主要内容如下：(1)结构设计和试验研究根据技术指标完成了子母弹侵彻战斗部模拟弹体的尺寸和结构设计，尾翼的尺寸和设计结构、靶体尺寸和结构设计，完成了模拟弹丸混凝土的模拟试验，研究靶体强度和初速度对侵彻深度的影响；通过对结构设计的研究和弹丸侵彻混凝土的试验研究，完善钻地弹设计方案。

By plotting a V-T curve with the data from MD, Tg was determined, which was compared well with calculated values and could qualitatively explain the effect of structure on glass transition of amine crosslinked epoxies although its absolute value having a big deviation from experimental results.

用模拟得到的数据作V-T关系曲线，用曲线上的转折点确定Tg的值。该模拟值与计算值有很好的吻合，尽管与实验值有较大的偏差，固化剂对Tg的影响可以用MD模拟定性得到。

Two control methods have been studied for the control of TCP etchers; one is EWMA (Exponential Weighted Moving Average), the other one is LS. In EWMA controller, the control parameter is the etching power, while they were etching power, chamber pressure, and gas flow rate in the LS control.

在作法上，我设计了EWMA(Exponential Weighted Moving Average)及LS控制器来模拟与分析，由於EWMA模拟时会需要有一个目标模型，所以我另外以最小平方法和最佳化公式建立一个以腔体压力，功率，氯气流量为变数，蚀刻深度为输出的模型以供EWMA控制器模拟时使用。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。