查询词典 simulation

Self-correcting process model can be applied to development simulation software in other fields since it is proposed aiming at developping software for general complex simulation systems.

自校验过程模型是针对复杂仿真系统的软件开发而提出的，因此可以应用于其它领域仿真系统的软件开发。

Using molecular dynamics simulation method, this project carried out intensive studies on these two aspects and their relationship. Melting point, density,specific heat,self-diffusion coefficient and viscosity were involved during simulation of thermophysical properties.

本项目利用分子动力学对液态金属的热物理性质（包括熔点、比热、密度、自扩散系数和粘度）、结构以及二者之间的关系进行了研究。

The mechanical behavior of Shape Memory Alloys material is tested, and the constitutive model of the SMA is established. A kind of SMA combined rubber isolator is developed, and the isolation effect of the SMA combined rubber isolator for long-span bridge and tall building structures is numerically simulated, from which the adaptive isolation performance and the self-restoring capacity of the SMA combined rubber isolator are verified. A kind of SMA damper is developed, the mechanical behavior of the SMA damper is tested, and the model of restoring force of the SMA damper is established. The theory and method of adaptive control based on the SMA damper for the long-span bridge are built, and the effectiveness and reliability of the adaptive control for the long-span bridge using the SMA damper are verified through numerical simulation and model test. The MRF-04K type magnetorheological damper is developed, the mechanical behavior of the MR damper is tested, and the model of restoring force of the MR damper is established. The theory and method of adaptive control based on the MR damper for the long-span bridge and tall building structures are built, and the effectiveness and reliability of the adaptive control for the long-span bridge and tall building structures using the MR damper are verified through numerical simulation and model test. In addition, the theory and method of sub-structural damage identification for long-span bridge are derived, the influence of soil-structure dynamic interaction on the seismic isolation and control effects with different isolation and control measures and the damage responses and the sliding base-isolation of large structures under the excitation of underground explosion are investigated.

试验研究了形状记忆合金材料的力学性能，建立了SMA材料的本构模型；研制了一种SMA复合橡胶隔震支座，数值仿真分析了应用SMA复合橡胶支座的大跨桥梁和高层建筑结构的隔震效果，从而验证了SMA复合橡胶支座的自适应隔震性能及其震后自恢复能力；研制了一种SMA阻尼器，试验研究了SMA阻尼器的力学性能，建立了SMA阻尼器的恢复力模型，建立了基于SMA阻尼器的大跨桥梁结构自适应控制理论与方法，通过数值仿真与模型试验验证了大跨桥梁结构SMA阻尼器自适应控制的有效性与可靠性；研制了一种MRF-04K型磁流变阻尼器，试验研究了MR阻尼器的力学性能，建立了MR阻尼器的恢复力模型，建立了基于MR阻尼器的大跨桥梁和高层建筑结构的自适应控制理论与方法，通过数值仿真和模型试验验证了大跨桥梁和高层建筑结构MR阻尼器自适应控制的有效性与可靠性；还建立了大跨桥梁结构的子结构损伤识别的理论与方法，研究了土-结构动力相互作用对不同隔震和控制措施的减震控制效果的影响以及地下爆炸波作用下各类大型结构的灾害响应与滑移隔震。

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。

Simulation and analysis are made respectively under different situation of delay. Fuzzy adaptive controller that can adjust the system parameters appropriately is designed to minimize the error caused by Network-Induced Delay. Simulation is realized of this controller in NCS. Experiments are carried on the Servo-System based on Field Bus. The results of simulations and experiments indicate that good performance can be achieved with the method presented above.

为改善网络时延给系统带来的影响，设计了可以适当调整控制器参数的模糊自适应控制器，对含该控制器的网络控制系统进行了仿真，并在构建的基于现场总线的伺服系统实验平台上进行了实验，仿真和实验验证了在网络控制系统中使用该算法可以达到满意的控制效果。

In experiments, a simulation environment which set up a topology to simulate the satellite link were built and tracing and analysis of several simulation schemes were performed.

在实验中，建立了模拟卫星链路特性的模拟环境，并对几种改进方案进行了跟踪分析。

The influence of the metal shadow mask on discharge was considered as well. A stable simulation environment and simulation process had been established.

作者建立了一个稳定可靠的仿真环境和灵活有效的仿真方法，通过比较实验电路波形和仿真波形，验证了本论文所提出的等效电路模型的正确性。

There were same trend of temperature distribution in rake plane and shear plane, and the feasibility of numeric simulation through was validated through comparing the result of experiment with simulation result.

通过对数值模拟结果和试验结果的比较，在前刀面和剪切面上温度分布具有相同的趋势，验证了数值模拟的可行性。

In view of the questions in theoretic analysis and numerical simulation with the finite element method,the separation criterion of chips, the surface contact, the setting of friction coefficient,and the thermal stress coupling are researched. A simulation example is presented by applying the finite element analysis software-ANSYS,and the change of stress and strain in metal cutting process, the forming of shear plane and the influence of the temperature field on metal cutting are analyzed. The tool's strength is also analyzed.

基于理论分析和实际有限元数值模拟计算中遇到的问题，研究、讨论了切屑分离标准、表面接触、摩擦系数的设定、切屑与工件之间的连接以及热应力耦合分析等各项技术，并应用大型有限元分析软件ANSYS，具体分析了金属切削过程中应力和应变的变化、剪切面的形成以及温度场对金属切削的影响，并依此对刀具作强度分析，得到若干结论。

The products produced by foreign companies to plant simulation, the main strap Christmas, including simulation fruits, hanging decorations series, artificial silk /, cloth tree flowers, Christmas Series, the products are exported to Europe and the United States, favored by customers.

金洋公司制作的产品以仿真植物、圣诞吊饰为主，包括仿真水果类、壁挂装饰系列、人造丝花、布树花、圣诞系列，产品远销欧美，深受客户青睐。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。