模拟

Both motor car and each trailer of HST were modeled as a multi-rigid-body system with two suspensions, and LVT was modeled as an assembly of track segment elements with 24 degrees of freedom. The vertical vibration matrix equation of the system was established on the basis of the principle of the total potential energy with stationary value in elastic system dynamics and the rule of "set-in-right-position" for formulating system matrixes, and then Wilson-θ numerical integration method was used to solve the problem. The dynamic responses of the system were calculated when the train runs at the speed of 200 km/h. And the effects of vertical stiffness of rail fastener and block pad on vertical vibration responses of the system were investigated.

其原理是：将高速列车的动车和拖车模拟为具有二系悬挂的多刚体系统；将弹性支承块式无碴轨道模拟为具有24个自由度的轨段单元的集合；基于弹性系统动力学总势能不变值原理及形成系统矩阵的"对号入座"法则，建立此系统竖向振动矩阵方程，并采用Wilson-θ数值积分法求解，计算速度为200 km/h时此系统竖向动力响应，研究轨道刚度对此系统竖向振动响应的影响规律。

In this paper, an analysis has been made of the influnce of statistical estimation on construction system simulation.

用实例分析了统计估计对实现施工系统模拟的影响，并指出统计工作的缺乏是制约模拟方法在施工系统中应用的主要问题。

Based on the interval hypothesis, statistical procedures were proposed and the methods for sample size determination are also given.

比较传统假设检定、区间假设检定等五种方法，以模拟的方式得到经验的整体型一错误、平均型一错误以及检定力模拟结果显示，区间假设可以有效的控制平均型I 误差在名目水准之下，且整体型一误差也比较低，检定力相较於使用Bonferroni修正来的好。

According to the theory of coupling of solid and fluid, the influence of fault step and dip angle on the stresses and deformations of coal layer and confining rock along with the pressure of pore water are numerically simulated by finite element method during the process of excavation above a confined aquifer. The mechanism of water inrush and the potential point of water inrush are explored. The distance of coal column for preventing water inrush is also analyzed quantitatively.

根据流固耦合理论，采用有限元数值模拟的方法，针对承压水体上采煤过程中断层参数对煤层、围岩的应力、变形和水压力变化的影响进行了模拟分析，探讨了存在断层时突水的机理和可能的突水点位置，并定量分析了防水煤柱的预留距离。

Stability of 14 high-cut slopes in Guangdong province is analyzed with typical rock mass structure analysis method and stereographic projection method, and with the numerical simulation method UDEC this paper simulated the excavation and reinforcement courses of the important slopes. Some conclutions and suggestions are based the analysis above.

本文结合广东某省道沿线14个高陡岩石边坡的开挖和支护方案的选择设计，运用常用的岩体结构分析方法和赤平投影方法对边坡的稳定性进行了分析，采用UDEC数值模拟方法对一些重点边坡的开挖支护进行了模拟，得出了以下一些结论： 1、边坡支护形式的选择应遵循"安全绿色、水土保持、恢复自然、环保之路"的设计原则。

The author also tries to simulate the vehicle assembly for the first time and develops the stereoscopy animation of dynamic assembly simulation system composed with other multi-media software.

并且结合了其它多媒体软件开发出了体视动画动态装配模拟系统，并首次在车辆装配模拟上做了一些尝试。

After created qualified grids, discretized physical characteristic, we computed the temperature and velocity field within the standard Model by utilizing CFD techniques. The thesis focuses on the temperature design of supply air, the influence on the platform brought by stopcock wind and local exhaust and the possibility of actualizing the VAV system.

在研究过程中运用CFD模拟的方法，选用标准湍流模型作为物理模型，在优质的网格生成的基础上，对所要研究的物理量进行离散化处理；并就空调送风温度的设定、活塞风、局部排风对站台热环境的影响、全天VAV环控方案实现的可能性等作了详细的理论研究与模拟分析。

In order to simulate as exactly as possible the actual sit ation of the flow in combined sewer during storm, the unsteady flow simulation is used to check the capability of the existing drainage networks to carry storm water and find out the overloaded pipes.

为了尽可能精确地模拟暴雨情况下合流制排水管网水流的实际情况，采用非恒定流模拟技术对现有管网的实际过水能力进行校核，查找出超载管段。

As a result, our program can be used for beginners to study and compare the different control strategics of temperature process.

使用开发完成之模拟程式，做回馈、串级、前馈三种控制策略之比较研究，结果发现，开发完成的温度程序之回馈、串级、前馈控制即时动态模拟视窗程式，已具备提供学习学习比较各种不同控制策略的功能。

Finally, the stress-strain curve of simulation and practical measure were compared, the results showed that analysis of simulation was in good agreement with the practical measure.

模拟分析得到的应力-应变曲线与实测应力-应变曲线对比结果表明：模拟分析结果与实测结果吻合得很好。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。