查询词典 modeling

The modeling of the rolling forging dies is different from that of the other numerical simulation. It belongs to the typically free form face modeling.lt easy give birth to unparameters in modeling, which makes boole operation fail. So we model the rolling forging dies with power-function UG and bring forward the ideal modeling methods.

前轴辊锻模的建模不同与其它数值模拟建模，它属于典型复杂曲面建模，在建模过程中常常出现非参数化的情况，导致布尔运算失败，针对这种问题采用功能强大的UG进行参数化建模，提出了理想的建模手段。

In the thesis a different anciently modeling method called multidimensional insertion modeling is used for the key parameters modeling in the process of the nitric acid production.

本文在对硝酸的生产过程中的主要参数进行建模的过程中，采用了不同以往的建模方法——多维插值建模。

Based the analysis of the modeling characteristic of different chairs,main modeling factors of chair-back throughout the design process were summarized,such as the people-oriented design concepts,the combination of contemporary design concepts and design elements,integration of materials and modeling language,to provide references for the related designers.

通过椅背造型特点的比较分析，总结了椅背造型设计过程中主要的设计切入点，如在作品中要充分融入以人为本的设计理念，结合当代的设计理念与设计元素，将材料与造型语言有机结合。

SEB composable modeling methodology is to decompose the complexity of modeling to the different hierarchy, then construct the whole system-of-system combat model by means of composition, which is able to direct the modeling for system-of-system combat simulation effectively.

SEB组合建模方法将体系对抗仿真建模的复杂性分解到各个层次的建模当中，再通过组合形成完整的战场对抗体系模型，可以有效指导体系对抗仿真的建模工作。

The basic concept and characteristics of missile system-of systems combat simulation for effectiveness evaluation were summarized and the problems of simulation model specification were analyzed, then the hierarchical description and composition method based on system-of-systems, entity and behavior was proposed as the modeling methodology of system-of-systems combat simulation, which is SEB composable modeling methodology. Then, the reference model of SEB methodology and the modeling reference view of various hierarchies were discussed.

总结了面向效能评估的导弹体系对对仿真基本概念和特点，分析了体系对抗仿真模型描述中存在的主要问题，在此基础上，提出体系－实体－行为的分层组合描述方法，作为体系对抗仿真的建模方法，即SEB组合建模方法，并给出其参考模型和各个层次建模的参考视圈。

Such as conventional thermodynamic system modeling andsimulating methods, which are aimed at simple thermal cycles, are not applicable tosystem modeling and design optimization, system modeling and the precision ofdesign optimization may also give rise to consequentiality infections to systemperformance and characteristic rules.

如针对简单热力循环的传统建模与计算方法已不再适用于大型复杂系统模拟分析及设计优化的需要，系统建模和设计优化的精度对系统性能与特性规律的影响更为显著等。

On the basic of heat equation method, a general math modeling of heater is developed., as well as a lots of real-time math modeling of heating system, such as math modeling of heat economic analysis、relative internal efficiency of HP cylinder、relative internal efficiency of MP cylinder and LP cylinder、utilization of blow down water tank、steam make-up of deaerate and steam leakage of seal gland.

热力系统在线性能计算和热经济性分析在降低机组煤耗，提高火电厂运行效益方面具有重要的作用。

In this paper, the modeling theory of multi-rigid-body dynamics was thoroughly investigated in order to make up the shortcoming in the above modeling method. The major research achievements are as follows:①Based on the matrix of direction cosine between the body-fixed base and the reference base, and Poisson equation of a rigid body rotating, the coordinate transformation method for the modeling of treelike multi-rigid-body dynamics is derived. The method is very routinization and easy to use the computer to carry on the symbol derivation.

本文针对上述建模方法存在的不足，深入地研究了多刚体系统动力学的建模方法，并将所研究的新方法应用于惯性振动设备的建模，取得的主要研究成果如下：①基于刚体连体基关于参考基的方向余弦矩阵和刚体转动的Poisson方程，导出了建立树形多刚体系统动力学方程的坐标变换法，其过程极其程式化，便于利用计算机进行符号推导。

Indicating the main characteristics of production technology in mail process center. Knowing in detail of the computer model and simulation method of discrete event system; investigation of computer simulation software; comparison and analysis the advantage and disdvantage of the simulation software. Modeling and simulating the package sorting production line in Xinjiang Newspapers and Periodicals Emitting Office and analyzing the simulation result. Modeling and simulating the hanging sorting -production line in Urmqi Mail Processing Center and analyzing the simulationresultProposes a simulation design method for the mail center auto product line, and made a simulation design for package emitting auto product line in Xinjiang Newspapers and Periodicals Emitting Office. Modeling a mathematical model and simulate for the construction of the sorting table of package sorting machine, and proposes a scheme of discriminatingly setting the buffers of sorting table.

本文的主要工作如下：针对邮政业务，特别是邮件处理中心的邮政业务作详细的调查分析，指出邮件处理中心生产工艺的主要特征；通过详细的了解离散事件系统计算机仿真技术的研究方法，并对计算机仿真软件作了周密的调查，借鉴、分析比较其功能特性的优缺点后，根据实际情况选购了本论文所需的仿真软件工具；对报刊发行局包件分拣生产线作计算机建模和仿真，将仿真结果作分析总结；对邮件处理中心转运中心的推推分拣生产线作计算机建模和仿真，得到仿真结果并作总结分析；提出邮件处理中心自动生产线的仿真设计方法，对报刊发行局期刊发行自动化生产线作仿真设计；最后对包件分拣机上包台结构建立数学模型和计算机仿真，提出多级上包台区别设置缓冲区的方案。

What this paper finished mainly work as follows: Five-phase hybrid step motor driver system with fixed-chopping frequency and constant total current driving is fully described. Mathematical model of the system, included the current control circuit, power driving circuit and five-phase hybrid stepping motor is established. The steady modeling of the system is established and studied. Based on the steady modeling of the system, dynamic modeling of the system is studied and single step response characteristic is constructed with MATLAB/Simulink. The simulation results, which is certified by the theory analysis, coincide with the theory analysis.

本文主要完成的工作包括几个方面：对五相混合式步进电动机恒频斩波恒总流驱动系统进行了完整的描述；建立了包括电流控制电路、功率驱动电路以及五相混合式步进电动机在内的恒频斩波恒总流驱动系统的完整的数学模型；基于MATLAB/Simulink建立了恒频斩波恒总流驱动系统稳态仿真模型，并进行了仿真；在建立其稳态仿真模型的基础上，对动态模型进行研究，并借助于MATLAB/Simulink工具建立了恒频斩波恒总流驱动系统单步响应特性的仿真模型并对其单步响应特性进行了仿真研究，仿真结果与理论分析相符。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。