查询词典 simulation test

Recent years as development of the computer and software, it becomes reality using numeric simulation to research grouting in clay. Using the software of PFC2D, the grouting in clay is lucubrated and such achievements are reached: Grouting technologies in existence grouting material and serosity are studied and rational methods are put forward in choosing grouting technology and serosity.(2) Base on numeric simulation biax test a method is explored to simulate clay with PFC2D.(3) A method is explored to simulate grouting using PFC2D.(4) The relation between serosity pressure and diffuseness of grouting in clay with different initial stress is studied.(5) The stress transformation of clay is studied during grouting.(6) The stress distribution is studied under different serosity pressure.(7) The normal stresss and shear stresss at any section are studied.

近年来随着计算技术的发展，使得采用数值模拟的方式研究均质土体中的注浆成为可能，本文则利用离散元程序PFC2D对均质土体中注浆进行了研究，主要做了以下几方面的工作：(1)研究了现有注浆加固技术、注浆材料以及浆液的性质，阐述了合理选择注浆方式以及浆液的方法；(2)采用数值双轴实验，探索了应用离散元模型模拟土体的方法：(3)探索了采用颗粒流程序进行注浆数值模拟的方法途径；(4)研究了在粘土中注浆不同侧向土压力条件下浆液扩散范围与注浆压力规律；(5)研究了注浆过程中不同阶段土体中压应力的变化；(6)研究了不同注浆压力对土体应力分稚的影响：(7)研究了注浆过程中土体中任一截面处正应力与剪应力的对比关系。

Based on the large-scale model test on soil-pile-structure interaction, as a part of the project financed by nature science national fund, analysis of soil-foundation -structure dynamic interaction (NO.50278033), some issues about modeling of soil-structure interaction system are discussed in this thesis. These issues mainly include simulation of soil infinity, selection of dynamic constitution model of material, simulation of the changing status nonlinearity on soil structure interface, meshing, using of symmetry principle and so on.

结合国家自然科学基金课题《地基-基础-上部结构相互作用体系动力特性研究》(NO.50278033)，以大比例桩筏基础框架模型试验为基础，运用通用有限元软件MARC，首先对土—框架结构动力相互作用体系进行有限元计算建模的一些问题作了研究，主要包括粘—弹性人工边界的施加、土域范围的选取、材料本构模型的选用、土体与结构交界面上状态非线性的模拟、网格划分以及对称性的应用等。

In the end, based on linear assumption, the simulation algorithm of the sine-scan vibration test was presented and the simulation was carried out on the updated modal of vibration generator.

最后，在线性假设的基础上给出了正弦扫描试验仿真的数值算法，并对修正后的模型进行了正弦扫描试验仿真研究。

It is proved by simulation test that the model reflects the physical characteristic of real system and the result of simulation is accurate and assumable.

通过对真实系统的仿真试验表明，该模型较真实的反映了实际系统的物理特性，仿真结果准确、可信。

In the research, the study of car impact test and numerical simulation method are both used. Based on works that have done, an impact model containing car model, dummy and restriction system model was built. According to national regulation, different types of impacts were simulated. The fuel cell auto's impact safety was analyzed, and the injury criterion for occupant can be read out directly by simulation data. The main research content of this project is to set up the fuel cell auto's frontal impact model, side-impact model, rear-impact model and the whole frontal impact model, which contains car model, dummy, restriction system model and so on, and calculating these models.

在本课题的研究过程中，博采众长，坚持创新，在综合分析总结前人研究经验的基础上，将实车碰撞试验研究与仿真计算分析方法结合起来，统一车身耐撞性有限元计算分析与乘员在约束系统作用下的运动响应的多体动力学分析，采用整车虚拟碰撞试验法进行燃料电池轿车的碰撞安全性研究，即建立一个集车辆、人体模型及乘员约束系统三者于一体的完整的车辆模型，以国家安全法规为依据，进行各种碰撞型式的整车虚拟碰撞试验，利用仿真计算结果进行燃料电池轿车的碰撞安全性分析，直接预测乘员的伤情指标。

The measurement results show that the MEMS bridge fully suspend over the signal line of CPW, do not adhere to dielectric layer and has very strong three-dimension effect under up-state. Moreover the simulation results agree with test results very well, this demonstrates that the method combining equivalent cicuit theory and simulation tool, which analyze the RF performance of RF MEMS devices, is feasible.

测试结果表明：器件射频性能的模拟值和测试结果吻合很好，证明了等效电路理论与仿真工具相结合的方法分析RF MEMS器件的可行性；器件的微结构已完全成型，立体感强，与介质层无粘连，桥本身也非常挺直。

In test total pressure at entrance of nozzle and thrust are measured, which are calculated by numerical simulation and are good agreement with experimental data. So numerical simulation in this paper is very exact and effective.

测试了固体燃料冲压发动机喷管入口处的总压和推力变化，并与数值计算进行了对比研究，理论与试验结果吻合很好，说明了数值计算的正确性和有效性。

Based on mathematical model, torque control and speed control methods of simulation of wind turbine based on DC motor are analyzed in detail. Then simulation model and experimental system are built to test and verify theoretical analysis.

以数学模型为基础，详细分析了直流电动机模拟风力机的转矩控制和转速控制方法，并通过建立仿真模型和实验系统对理论分析进行验证。

The simulation experiment in a hypothesized electron working platform to this circuit was did,and the simulation data shows that this sensor has good linearity.Moreover,the result of the experimental test at reservoir phys...

在油藏物理模拟实验的平面模型上进行了实验测试，验证了用该测量方法测量油藏物理模拟饱和度是可行的，传感器的电路设计是可靠的。

It can effectively prevent cracking,by analyzing the chemical and mechanical pefformanee of this clad plate,carrying on the non-standard highest hardness test,metallographic analysis and simulation welding test,and using 890 ℃×4 h preweht air-cool heat treatment,postweld 250 ℃×2 h hydrogen removal heat treatment and final 620

通过分析该复合管板的化学成分和机械性能，并进行了非标准的最高硬度试验、金相分析和模拟试焊，采用890℃×4h焊前空冷热处理、焊后250℃×2h消氧热处理以及最终620℃×4h退火热处理措施，可有效防止裂纹产生。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。