查询词典 simulation test

It indicates the distinct element method simulation model of charging of bell-less top blast furnace may replace the model experiment that takes very long time, and spends a great amount of both manpower and material resources to research the law of charging of bell-less top. The distinct element method simulation is made for opening furnace charging of reality bell-less top blast furnace. The result of simulation is also very identical with that of measuring.

本文在高炉无钟炉顶实验模型上进行了单环和多环布料实验研究，同时运用离散单元法模拟模型对实验进行了数值模拟，得到的炉料分布和料面形状的实验结果与模拟结果相当吻合，这证明了离散单元法在高炉无钟炉顶布料中的应用是可行的，并且表明运用高炉无钟炉顶布料离散单元法模拟模型可以替代费时、费钱、费力的物理模型实验，进行无钟炉顶布料规律研究。

On the basis of the railway organization simulation system of PDL, this paper takes the under-constructing Beijing-Tianjin Passenger Dedicated Railway Line as background. Simulation experiments are respectively carried out using traditional way and accurate simulation initialization method in four-aspect fixed block signaling system and quasi-moving block signaling system.

最后在自主设计开发的客运专线列车运行组织仿真系统上，以正在建设的北京到天津客运专线为背景，分别应用传统的和精确的初始映像方法在四显示固定闭塞和准移动闭塞下进行仿真。

The first of the I2C-bus design of the Avalon bus interface specifications and a preliminary understanding, the use of Verilog HDL language of I2C modules were prepared, and then carried out Modelsim compiled simulation software simulation, simulation waveforms obtained, and finally to adopted by the compiler to achieve the I2C IP core in the SOPC BUILDER module can generate nuclear IP core, the IP core of the I2C is Avalon bus interface, and then prepared NiosII system testing software, to achieve the functions of I2C bus.

本设计先对I2C总线的规范和Avalon总线接口进行了初步的了解，使用Verilog HDL语言对I2C的各个模块进行了编写，然后在Moelsim仿真软件内进行编译仿真，得出仿真波形，最后把编译通过的，实现I2C总线IP核的模块在SOPC BUILDER中生成可以调用的IP核，这个I2C的IP核是采用Avalon总线接口的，然后在NiosII中编写系统测试软件，实现I2C总线的功能。

The theory of the simulation is that, firstly put fuze and parts in simulation device in reverse, then fire them in high speed by air gun , and they fly into gun spinning quickly and impact cushion and brass block in it , negative acceleration because of impact is to simulate setback , meanwhile they spin with spin gun when impacting, so spin environment can be simulated, so the simulation system can stimulate setback and spin of fuze in fire.

该模拟系统的原理是将引信及其零部件倒置在模拟弹丸中，通过空气炮以高速发射出去，然后飞入高速旋转的旋转管内，与旋转管内的缓冲块和黄铜块碰撞，碰撞而形成的负加速度作为引信发射时受到的后坐，由于碰撞时与旋转管一起旋转，模拟引信发射时的旋转环境，达到模拟引信发射后坐与旋转环境的目的。

In order to establish the complete dynamic simulation model for the heat recovery steam generator and develop an advanced drum level controller, the methods of probability and time series were used to analyze the field data on drum level sloshing noise. The mean value of the drum level was removed and the field data was de-trended to get the true sloshing noise. Meantime, the AR model was set up for the drum level sloshing noise, and simulation results show that the model realizes matching simulation of the drum level noise signals in the power spectrum. The model can also match the drum level noise successfully in the time domain.

为建立完整的余热锅炉系统动态仿真模型，并基于此模型开发先进水位控制器，采用概率统计和时间序列分析的方法，对现场采集的汽包水位晃荡噪声信号进行了分析，去除汽包水位均值和趋势以获得真实的汽包水位晃荡噪声，建立了相应的汽包水位晃荡噪声仿真AR模型；模型的仿真结果表明：AR模型从功率谱上对信号数据进行了匹配模拟，且使用该模型作为噪声模块在时域上对汽包水位晃荡噪声信号进行了成功匹配。

Based on nonliner dynamic simulation model of BLDCM.simulation model of speed and double close loops of current are built in adjusting speed system for BLDCM.Through simulation the performance of BLDCM is researched,in the way PI adjustors of speed and current adopted,fuzzy control used in speed loop and PI adjustor used in current loop,which prepares theory base for controller design of high quality BLDCM.

在直流无刷电机非线性动态仿真模型基础上建立了转速、电流双闭环直流无刷电机调速系统仿真模型，对转速、电流环均采用PI调节器及转速环采用模糊控制器、电流环采用PI调节器的直流无刷电机性能分别进行了仿真研究，为高性能直流无刷电机控制器设计提供了理论依据。

Based on summarizations of system simulation technology and visual simulation technology, this thesis makes a deep research on system design technology and visual environment design technology with the back ground of two avion simulation systems.

本论文在全面综述系统仿真技术、军机仿真技术和视景仿真技术理论的基础上，以两种型号的现代军机仿真系统为背景，对系统顶层设计技术和视景环境设计技术进行了深入的研究，主要研究内容如下

Based on summarizations of system simulation technology and visual simulation technology, this thesis makes a deep research on system design technology and visual environment design technology with the back ground of two avion simulation systems.

因此，军机仿真系统在系统功能、总体设计以及关键技术方面亦发生了较大的变化，以满足飞行作战仿真训练的需要。

Based on summarizations of system simulation technology and visual simulation technology, this thesis makes a deep research on system design technology and visual environment design technology with the back ground of two avion simulation systems. This thesis mainly studies the followings

本论文在全面综述系统仿真技术、军机仿真技术和视景仿真技术理论的基础上，以两种型号的现代军机仿真系统为背景，对系统顶层设计技术和视景环境设计技术进行了深入的研究，主要研究内容如下

With the rapid developments of science and technology, the modern avion simulation system faces two requirements. One is function requirement and the other is technology renovation requirement. As to the first requirement, functions of modern avion are becoming more and more abundant, which causes the flight simulation training change greatly. As to the second requirement, with the development and adoption of new technology, high verisimilitude requirements are raised to avion simulation system.

中文题名现代军机飞行仿真系统的研究副题名外文题名 A study on modern avion flight simulation system 论文作者黄安祥导师李明陈宗基学科专业导航、制导与控制研究领域\研究方向学位级别博士学位授予单位北京航空航天大学学位授予日期2003 论文页码总数150页关键词军用飞机飞行仿真系统仿真馆藏号BSLW /2003 /V271 /3 随着科学技木的飞速发展，现代军机仿真训练系统面临两大需求：一是功能需求，现代军机功能的增强，使飞行仿真训练内容发生了较大变化；二是技术更新需求，新技术的发展及其在仿真系统中的应用，对军机仿真系统的逼真度提出了更高的要求。

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。