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simulation相关的网络例句

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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

The system com- bines numerical simulation with physical simulation to solve the difficult problems of autopilot in closed-loop work on land and dynamic simulation of the course ,rudder angle the track.

介绍一种新颖的自动舵陆上仿真系统的设计方案、功能、特点及软件的设计特点,该系统采用数字模拟与物理模拟相结合的方法,解决了自动舵的陆上闭环工作及航向、舵角、航迹的动态仿真难题。

Based on the results from the Kaiser effect test, disengagement density dislocation test calcspar mineral crystal lattice, and physical simulation results, the numerical simulation models are constructed, and the boundary conditions for simulation analysis is decided.

利用Kaiser效应、方解石矿物晶体的晶格自由密度位错的测试结果,结合物理模拟的结果,建立了研究区数值模拟分析的地质模型,确定了数值分析的边界条件。

Based on platform structural design parameters, simulation research of load coupling among channels for fighting simulation Stewart platform was achieved by using load couping evaluation indexes, and the experimental validation of fighting simulation Stewart platform test prototype was done, which proved the validity and rationality of the load coupling evaluation indexes.

基于平台结构设计参数,运用负载交联耦合评价指标,对飞行模拟Stewart平台通道间负载交联耦合进行了仿真研究,并用飞行模拟Stewart平台试验样机进行了试验验证,证明了负载交联辐合评价指标的有效性和合理性。

According to the calibration information, Research and development status of automotive bus network and automotive calibration system is studied and the research significance is generalized. First of all, the collectivity precept for calibration system is designed, the calibration platform is set up based on the XCP Protocol and the calibration object is CAN bus network simulation ECUs. Then how to create the calibration system based on Ethernet and Series communication is expatiated, the communication way from computer to ECUs is introduced and the calibration system is tested. Then how to create the calibration system based on CAN bus communication is expatiated, the design and the interface programme are introduced and the calibration system is tested. At last the platform is used to calibrate the CAN bus network simulation system to regulate the simulation system's topology and communication speed to test the communication protocol's feasibility.

论文首先设计了标定系统的总体方案,以CAN总线实时仿真系统中的节点标定为研究对象,采用XCP协议建立具有串口、以太网和CAN总线三种通讯接口的标定平台;然后,具体开发了基于以太网通讯和基于串口通讯的标定系统,完成了上、下位机部分的软件设计,确定了标定系统在两种通讯方式下的数据处理方法,并分别应用两种标定方式标定下位机仿真系统的参数,让下位机仿真系统在规定的通讯协议和拓扑结构下进行仿真,对所设计的标定系统进行了调试;接着,设计了基于CAN总线通讯的标定系统,完成了CCP协议(&XCP on CAN&)的接口程序设计,并通过混合动力汽车一种拓扑结构的通讯仿真对所设计的系统进行了调试;最后,应用开发的标定系统,对混合动力电动汽车网络通讯协议进行了仿真研究,并根据实验结果进行了分析。

Technologies such as DirectX, object oriented programming and database are used to realize visual three-dimensional flight simulation system. In the simulation system, operator controls UAV with flight rod. The system can display the change of position and track for UAV with the change of operational input. Flight simulation data can be also recorded. Then we can analysis the operation and stable performance of UAV without empennage with qualitative and quantitative methods.

运用 DirectX、面向对象编程与数据库等技术,实现了基于 PC 机的三维虚拟飞行仿真系统,通过人机交互飞行,可以比较直观地显示无人机的姿态与轨迹随操纵输入变化而变化,同时也可记录分析仿真飞行数据,从而对无尾式无人机的稳定性与操纵性能进行定性与定量的分析评估。

In this paper, preliminary FDS fire chamber to simulate the flue gas generated through the corridor adjacent to the room near the migration laws, an analysis of indoor air flow field and the movement of smoke layer, and through the simulation of fire scenes, in a simple form of visual dynamic display of the entire process of fire, in the simulation process to obtain more accurate fire-related parameters such as temperature distribution, gas flow and heat radiation, and analysis of simulation results through the fire chamber of the flue gas migration characteristics, results showed that the chamber in the absence of fire smoke control measures, the process of the spread of smoke filled the first chamber is at the top, with the passage of time, the proliferation of slowly downward until the entire chamber is full, and then through the corridor smoke quickly spread to the nearby chamber.

本文运用FDS初步模拟了腔室火灾产生的烟气通过毗邻的走廊向附近房间迁移的规律,分析了室内空气流场和烟气层运动状况,并通过对火灾场景的模拟,以简单直观的形式动态显示出火灾发生的全过程,在模拟过程中获得较准确的火灾相关参数,如温度场分布,烟气流动及热辐射等,并通过模拟结果分析腔室火灾的烟气迁移特性,结果表明着火腔室在无防排烟措施的情况下,烟气扩散的过程是首先充满腔室顶部,随着时间的推移,慢慢向下扩散,直至将整个腔室充满,然后烟气通过走廊快速向附近腔室蔓延。

In this dissertation the"Penalty"finite element method was employed to compute the velocity of the three-dimensional flow of power-law fluid in a profile die. In order to decrease the needed computer memory and raise the stability of numerical simulation, a set of decoupled methods such as PFEM, pseudo-body force method and transformation of momentum equation to the elliptic equation was developed to establish the general finite element equations to compute the distributions of velocity and viscoelastic stress of the three-dimensional viscoelastic flow of the Phan ThienTanner fluid in a profile die. During numerical simulation of the extrudate swell of the PTT fluid, the flow in the die and out of the die was analyzed separately, which demands less computer memory. The key techniques used in numerical simulation of the three-dimensional extrusion from dies such as decision of boundary conditions, creation of initial velocity field, selection of penalty factor, high Weissenberg number problem , regeneration of the free surface were studied in detail.

中文题名聚合物异型材口模挤出三维流动研究副题名外文题名 Study on three-dimensional flow of polymer melts during the process of profile extrusion from dies 论文作者涂志刚导师柳和生包忠诩教授学科专业材料加工工程研究领域\研究方向学位级别博士学位授予单位南昌大学学位授予日期2001 论文页码总数148页关键词挤出成型聚合物材料挤出口模聚合物异型材馆藏号BSLW /2003 /TQ320 /9 本文建立了求解挤出口模内幂律流体流动速度场的通用三维罚有限元模型;对于非线性粘弹性的Phan Thien-Tanner流体,为了降低模拟计算对计算机硬件的要求,并使模拟计算更加稳定,采用了一种去耦算法,包括罚有限元方法、拟体力方法和动量方程的椭圆类方程转化方法,并建立了求解速度场和粘弹性应力场的总体有限元方程;对于PTT流体的挤出胀大问题,提出了挤出胀大熔体口模内外分离模拟法,这样可以显著降低数值模拟对计算机硬件的要求。

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