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Initial random imperfections of composite panels are assumed to be Gaussian random fields and simulated numerically from their mean and autocovariance functions. Lindstedt-Poincare's perturbation technique is employed to solve the resulting nonlinear equation in the vibration analysis of imperfect composite panels. Monte Carlo analyses are performed for detailed numerical calculations.

层板之随机性几何缺陷以高斯随机场来描述，并利用其平均值函数及自方差函数来做数值的模拟；以Lindstedt-Poincare微扰方法来处理缺陷复合层板之非线性运动方程式，并使用蒙地卡罗法来做详细的数值分析。

Some people claim that all of nature will be simulated eventually on computers using cellular automata.

一些人主张，自然界所有的活动都可以用在计算机上运行的细胞自动机来模拟。

Two aspects of the automatic control network lab were studied in this paper: One was design of the experiment of the automatic control technology and theory which can be simulated and the realization of network.

本文主要针对控制系统网络化实验的两个方面的内容进行研究：一具有仿真功能的自动控制技术和理论实验的设计以及网络化实现。

To improve the braking safety of automobile, the mechanics characteristic of differential brake was analyzed, automotive subsystems models were built by applying ADAMS/ Car, automotive mechanics simulation model was built by setting some main subsystems, beeline braking stability and turning braking stability were simulated, and the effect of differential brake on the stabilities was studied.

为了提高汽车制动的安全性，对差动制动的力学特性进行了分析，运用ADAMS／Car软件建立了汽车各子系统动力学模型，通过对主要子系统进行相应的设置，建立了整车动力学仿真模型，进行了直线制动及转弯制动稳定性仿真分析，研究了差动制动对制动稳定性的影响。

The hot stamping processes of B-bearing steel sheet after hot rolling were simulated at Gleeble 1500, the microstructure and mechanical properties were analyzed at different heat treatment conditions, and the segregation of boron and precipitation of boron phase were investigated by X-ray diffraction analysis and particulate tracking autoradiograph technology.

通过Gleeble1500热／力模拟实验机对轧后含硼钢板进行了热冲压过程模拟，分析了各种热处理条件对含硼钢组织性能的影响，并采用X射线衍射技术和径迹照相技术分析了硼的偏聚和硼相析出情况。

Simulated annealing method was used to get the least average relative error for a given temperature.

利用神经网络分析了频率和电流对平均温度及其平均相对误差的影响，并应用模拟退火法对频率和电流进行了优化以获得所需温度下的最小平均相对误差。

Most of the metal forging processes can be simulated using two-dimensional plane strain and axisymmetric modes.

实际工程中的锻造成形过程大多数可简化为平面应变和轴对称模型。

In this paper, a process of pressure-swing distillation for separation of HFC-245fa and HF azeotrope was simulated by Aspen Plus.

在计算机模拟和分析的基础上，研究了变压精馏分离五氟丙烷－氟化氢的工艺流程。

The simulated results indicate that the estimation of accuracy in azimuth and range source localization is improved by this method.

数值仿真结果表明，通过阵列的移动，可以合成大的孔径，提高目标的方位、距离估计精度。

On this basis,back electromotive force without load and with load is researched,simulated and analyzed,and cogging torque is analyzed and calculated in different dimensions of magnetic steel.

在此基础上，仿真了空载和负载下的电机反电动势，并且对不同磁钢尺寸下的定位力矩进行了分析计算。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。