查询词典 simulation

By using simulation-analysis software CFD,STAR-CD,a three-dimensional simulation analysis was conducted of the semi-volute suction chamber of a gas-oil multiphase pump for flow fields at different void fractions.

利用CFD模拟分析软件———STAR-CD，对油气混输泵半螺旋形吸入室在不同含气率下的流场进行了三维模拟分析。

Simulation on steam system of the secondary loop of nuclear power plant is an important part of research of real-time, whole range, whole functional simulation of nuclear power plant.

核动力装置二回路蒸汽系统仿真是核动力装置实时、全范围、全功能仿真机研制工作的重要组成部分。

A simulation research is conducted on the example of six-phase double star winding shifted by 30°synchronous motor.In order to investigate the control algorithm of multilevel inverter , high harmonics as well as its problems, a mathematical model of the control algorithm based on the voltage space vector is built. For the first time, the principle along boundary is introduced to confirm the chosen switch state when many switch states are corresponding to the same vector. Simulation analysis and hardware realization are conducted with the combination of diode clamped three-level inverter and five-level inverter.

建立了基于空间电压矢量控制算法的仿真模型；仿真研究中采用对偶小矢量搭配改善中点电位波动的问题；针对多个开关状态对应同一待选矢量的问题引入&循边原则&确定被选择的开关状态；对过调制问题进行了相应的处理：结合二极管嵌位式三电平逆变器和五电平逆变器进行了仿真分析和硬件实现。

The simulation points out a way for designing and manufacturing nanomaterials with totally different microstructures.2.The linear homopolymers have been added into a ABC 3-miktoarm star terpolymers system by dynamic density functional theory simulation. The areas of B phase domain and the interval between two nearest neighbour B phase domains shift with the accession of the linear polymer.3.A Petri net model was built to simulate the heat shock response in E.coli.

我们构建了大肠杆菌热休克反应的Petri网络模型，并应用化学反应动力学随机算法进行了模拟计算，观察其动力学过程，通过观测体系中平衡态下分子数目与反应速率常数间关系，总结了反应对体系平衡的影响规律，并由观测到的现象，对调控因子α的自身表达的调控机制作出推测：调控因子α的调控机制有可能是受网络控制的。4。

In order to solve the shape problem of profiling processing space complex surface, general mathematical model of a wooden staircase handrail elbow end section curve has been set up, the VC and Pro/E for the staircase handrail elbow joint simulation have been used to do simulation.

为了解决依据靠模加工空间复杂曲面成型困难的问题，建立木制楼梯扶手弯头端截面曲线的通用数学模型，利用VC和Pro/E对楼梯扶手弯头进行仿真验证。

Warm-hot control forging process of automobile spline shaft is investigated by using physical simulation and numerical simulation.

采用物理模拟和数值模拟相结合的手段，对汽车花键轴的温热控制精锻工艺进行了深入的研究。

Design and realization of engine speed system According to servocontrol technology of D.C and actual equipment, the paper has designed hardware circuit of engine speed system, drive circuit of simulation speed meter and indicator of simulation speed meter.

依据发动机转速系统的数学模型，给出了软件实现框图；依据有关飞行模拟器验证的国家军用标准，利用A/D转换卡采集到的发动机转速系统转速的仿真数据(稳态转速、加速转速和减速转速)，对发动机转速系统的仿真情况进行了验证。4。

Procedures introduced smoke simulation technology, simulation technology for the entire battlefield in the smoke from the explosion effect is very useful, vivid, worthy of recommendation.

详细说明：程序介绍烟雾的模拟技术，整个技术对于模拟战场中的爆炸产生的烟雾效果非常有用，形象逼真，值得推荐。

Based on the virtual simulation environment of virtual prototype simulation analytical software ADAMS, the reliability based virtual experimental research was developed on the broadly applied crank - slider mechanism.

基于虚拟样机仿真分析软件ADAMS的虚拟仿真环境，对应用广泛的曲柄滑块机构开展基于可靠性的虚拟实验研究。

In addition, a performance comparison between single-layered and double-layered constellation is made out by simulation, with the result of double-layered constellation being better.This research is an exploration of network simulation for satellite network.

然后，本文给出适合于双层星座的路由算法的仿真，通过仿真实验和结果分析，验证了路山算法具有较优性能；另外，将双层星座与单层星座进行了性能上的比较，证明了双层星座性能上优于单层星座。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。