查询词典 dynamic system

Load model is representation of the relationship between the power and bus voltage. Load characteristics of power system have a significant effect on power system analysis of power flow and stability that includes transient stability, voltage stability and dynamic stability. The accurate load characteristics will help engineer to analysis power flow and stability.

中文摘要负载模型可反映负载功率和电压之间的相互关系，电力系统的负载特性对系统负载潮流及稳定度包括暂态稳定度、电压稳定度及动态稳定度的分析皆有著重大的影响，准确的负载特性将有助於电力工程人员在负载潮流与稳定度之模拟分析。

In this paper, we introduce the design and development of a new intelligent traffic peccancy monitoring system by video detection, which adopts software mode based on detecting dynamic traffic video stream. This system could carry out efficient real-time monitoring on quiet a few sorts of traffic peccancies, with merits of high precision, more functions and high automatization . Comparing with the current traffic monitoring techniques, its a great improvement.

本文设计开发了一个新型的交通车辆违章智能视频监控系统，它采用基于交通动态视频的软件检测模式，实现了对交通车辆违章行为的多项目、大范围监控，具有实时性、准确性、高智能性和多功能性等优点，是对现有智能交通监控技术的重大改进。

Some valuable conclusions were drawn and shown as following: Three models were brought forward, i.e. 6DOF rigid-connected model, 8DOF rigid-jointed model and 12DOF non-rigid connected model. The basic dynamic properties of the system, the relative motion between parafoil and payload, and some geometric parameters'effects on the system dynamics were analyzed and summarized.

分别建立六自由度刚性连接模型、八自由度刚性铰接模型和十二自由度非刚性连接模型，着重分析了系统的基本运动特性、回收物-伞体间的相对运动特性，以及主要设计参数对系统性能的影响；并将不同复杂程度的模型进行对比，分析了各种模型的特点和适用范围。

Then the algorithm was used to get the seven parameters of viscosity model of W-Ni-Fe heavy alloy and 316L stainless steel feedstock, which provide the necessary material data for quality forecast of mold core part made of stainless steel and heavy alloy tungsten ball, and for optimal design of mold and process parameters, which establishes the foundation of material database of MIM. In the research of visual simulation software development, in order to build the software system model and flow analysis algorithm based on Cross-WLF viscosity model, and realize functions such as pre-processor, solver, parameter regress, data management, graph operations, some advanced software methods as OOSE (Object Oriented Software Engineering) and UML were applied to set up user model, static model and dynamic model of MIM simulation software. These models describe system function, event flow, structure and relation of classes, object interaction, structure of database and I/O file format.

在MIM可视化仿真软件开发方面，为了建立软件系统模型及基于Cross-WLF粘度模型的流动分析算法，实现软件的前处理、求解器、参数拟合、数据管理和图形操作等功能，将面向对象软件工程与统一建模语言技术首次引入到MIM仿真软件的设计开发中，建立了软件的用户模型、静态模型和动态模型，描述了系统的功能需求、事件流程、类的结构与关系、对象之间的通信、数据库结构和输入输出文件格式等，用Visual C++与Delphi开发工具编码实现了2维MIM充模流动过程仿真软件，方便了对薄壁零件的质量预测以及模具和工艺参数的优化设计。

In the research of visual simulation software development, in order to build the software system model and flow analysis algorithm based on Cross-WLF viscosity model, and realize functions such as pre-processor, solver, parameter regress, data management, graph operations, some advanced software methods as OOSE (Object Oriented Software Engineering) and UML were applied to set up user model, static model and dynamic model of MIM simulation software. These models describe system function, event flow, structure and relation of classes, object interaction, structure of database and I/O file format.

在MIM喂料注射成形性能研究方面，针对毛细管流变仪测试法衡量流动性能的不足，提出使用螺旋线模具测试喂料熔体的注射成形性能，创造性地设计了一套可快换浇口，模腔封闭的螺旋测试模，并在螺旋测试模上采用正交实验设计，得出了高密度重合金喂料流动长度L_m的回归公式，揭示了L_m随Q_m、P_m、△T_m和凡的变化规律，并得出工艺参数对成形性能影响的强度顺序为Qm最大，尸m与△几其次，因而改善喂料流动性能应优先控制注射速率Qm。

It puts forward to system compartmentalization , significant functions and design of external interfaces of on-board equipment simulation subsystem by analyzing and research on system structure, functions interfaces of CTCS3 based on SRS of ETCS2. It realized software development of on-board equipment simulation subsystem and significant functions by using C++ Builder 6.0. It realized the function of computing most restrictive speed profiles and dynamic speed profiles, computing on-board odometers, ceiling speed supervision, MA speed supervision, speed comparison intervention, transmitting position report, computing end-point of MA, receiving data by balise etc.

本文通过对CTCS3级系统组成结构、功能、接口的分析和研究，在参照ETCS2级需求规范的基础上，总结出了CTCS3级仿真测试平台中车载仿真子系统的结构划分、主要功能设计、接口设计等，对仿真子系统的软件进行了总体设计，并利用C++ Builder 6.0开发平台实现了CTCS3级车载设备仿真子系统的软件开发，实现了车载设备的主要功能，包括：最严格速度曲线的计算、动态速度曲线的计算、车载里程的计算、顶棚速度监督、MA速度的监督、速度比较干预、发送列车位置报告、计算MA终点，接收应答器报文等功能。

First, when making the analysis to Contemporary China\'s television words system, always based on the macroscopic perspective in this article, especially in globalization age, I will look into the system in the relationship among the dynamic structural relations of whole politics, the economy, the culture in global community, and will carry on the explanation by using the correlation theories such as the modernity, post-modernity, the modern nation-state, the industrial competition, the globalization, as well as many modern culture theory and so on. Next, this article I considered the special cultural status of TV culture in the entire big cultural structure, in the meantime, I also considered the affiliation and the general character with other cultural type contacting. Finally, what compositing the writing frame is a spreading process structure:"environment→disseminator→information product→receiver→environment".

在本文中，这种&结构分析&具备三层涵义：首先，在对当代中国的电视话语系统作分析时，始终都以宏观的视野作依托，尤其是从全球化进程中的政治、经济、文化等动态的结构关系中去加以观照，并运用相关理论(如现代性、后现代性、现代民族国家、产业竞争、全球化等)进行阐释；其次，既考虑到了电视文化在整个大文化结构中的特殊地位，又考虑到了它与其它文化类型的联系及共性；最后，组成本文写作框架的是下述传播过程：&环境→传者→信息产品→受者→环境&。

Because of its fast and flexible controllability, the voltage source converter based high voltage direct current will be widely applied in power systems, so it is of practical significance to study the dynamic performance of VSC-HVDC in complicated power grids. The quasi steady state response of flexible HVDC system can be simulated in power system simulation software PSS/E.

柔性直流输电系统(voltage sourced converters high voltage direct current，VSC-HVDC)因其快速灵活的可控性在电力工业中将有越来越广泛的应用，研究其在复杂电力网络中的动态性能具有工程实际意义，应用电力系统仿真软件PSS/E可模拟柔性直流输电的准稳态响应。

By practical engineering case,numerical analysis is done,and the natural frequency and the response to impact of the system are obtained.The numerical results show that the elastic deformation of the raft body will affect the dynamic character of the system,and the proposed model is more precise and judicious in engineering application.

结合具体的算例，求出了弹性浮筏隔振系统的固有频率和对不同冲击激励的响应，指出了筏体的弹性变形对系统动力学性能的影响，揭示了弹性模型的全面性和合理性。

In the first part, one of the multibody system theories and methods— Huston's method based on Kane's equation is systematically summarized. By using this method, the existing design problems of two main machines—wheel loader and hydraulic excavator in the field of construction machinery have been solved, and also the software KDOSCM which includes multibody system kinematic and dynamic analysis, optimization , motion simulation and static force analysis is developed for construction machinery.

上篇在系统总结基于Kane方程的Huston方法的多体系统理论和方法的基础上，侧重于运用该方法解决工程机械领域中的两大主要机型—轮式装载机和液压挖掘机在设计中存在的问题，同时开发研制了可用于对工程机械进行多体系统运动学、动力学分析，优化设计、运动仿真和静力分析的软件包KDOSCM。

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。