查询词典 modeling

A novel feature recognition method based on part modeling process which was recorded by way of macro command in CAD systems was proposed herein: geometry and topology entities which produced by single modeling process were analyzed in the single feature recognition process and all features in part were recognized based on step by step strategy.

每次特征识别仅对单个建模过程中的几何实体和拓扑实体进行分析，逐一识别零件模型的所有特征，有效避免了传统方法对零件模型的全部几何实体和拓扑实体进行特征识别存在的缺陷。

The parametric modeling or macroprogramming capability of computer-aided drafting or geometric modeling may be useful for this task.

参数建模，计算机辅助绘图的宏编程能力或几何建模在完成此类任务时会非常有用。

Although this time's bronze utensil still appeared relatively simple, the modeling with practical function and form esthetic sense, as well as the changed diverse geometry decoration and the dignified grave animal decoration, actually display its bright time esthetic style: Implication symbolic, dignified massiveness and overall compatibility, which prepare both for the arrival of Shang and Zhou bronze prosperous time and the esthetic modeling, decorative design, style.

尽管这一时期的青铜器仍然显得相对朴实，但其实用功能和形式美感兼具的造型，以及变化多样的几何纹和威严庄重的动物纹装饰，却凸显了其鲜明的时代审美风格：寓意象征性、庄严厚重性和整体适应性。这为商周青铜器鼎盛时代的到来，在审美的造型、纹饰和风格上均作了必要的铺垫。

The following software to be used by company, GHS(R11.5) software used for Hydrostatics calculation, stability and global strength evaluation and freeboard and tonnage calculation; SHD and Mastership software used for Hull construction Modeling, Working drawing generation and Mould loft; ANSYS software used for FEM structural analysis; SB3DS software used for modeling of Piping and it s fittings, electrical cable and it s fittings, working drawing generation; Microsoft Project used to project planning.

公司内的设计和管理工作主要应用以下软件：船舶性能计算采用用美国的 GHS(R11.0)系统；船体结构建模及放样采用上海东欣软件；船舶结构有限元分析主要用ANSYS通用有限元分析及结构优化软件；管系布置及放样软件采用SB3DS；电缆布置及放样软件采用SB3DS； Microsoft Project用于工程及设计管理。

And according to the goal modeling gained from the above method, this thesis gives a new goal-driven software architecture modeling method based on the theory and principle of graph grammar presented by Le Metayer.(3) Based on GQM approach, integrating the research status, this thesis presents a process-oriented metrics for software architecture adaptability.

该方法在GQM方法的基础上，提出了面向过程的度量方法建模步骤、引入了数据项分层和确认分层、增加了度量的结构化描述和定义了新的度量指标，对GQM方法进行了进一步的扩展和改进。

It is the first time that the rational Bézier surfaces modeling problem has been proposed and approached successfully, which make it possible for us to research on minimal surface modeling of general conicoid.

在CAGD领域内首次提出了有理Bézier极小曲面造型问题并进行了成功的尝试，使得统一地研究一般二次曲面的极小曲面造型成为可能。

Firstly, the 3D solid model of the analyzed object is built directly in the FEM software ANSYS 8.0 without using other CAD software. The influence of the side sizes of solid elements on computing results and the influence of coupling ways between different parts on the modal parameters are researched by simply modeling. And a new connecting method about joints in ANSYS is proposed and applied to finite element modeling of the test-bed for spindle system. Furthermore, several different computing techniques for modal parameters extraction are compared in solving the finite element model of spindle system test-bed. Many modal solutions are also done to achieve the relationships between the whole or part stiffness value and computed modal parameters. The laws about joint rigid parameters" influences on modal parameters are discussed by means of altering their values for conjoint parts. And by changing local rigid parameter values, the different location selections" influence on computed modal parameters is also studied.

本文通过使用ANSYS 8.0软件直接建立研究对象的实体结构模型，而没有借助其他的CAD软件；通过构建简单的模型研究实体单元边长大小对计算结果的影响，部件之间不同的联结方式对模态参数的影响，探讨在ANSYS中实现结合部的方法，提出一种新的联结方法，并建立主轴系统试验台的有限元模型；对建立的主轴系统试验台有限元模型求解，比较几种不同模态提取方法；通过改变结合部联结单元的刚度参数进行的计算，寻找联结刚度对模态参数变化的影响规律；改变局部联结单元的刚度参数，研究刚度值位置差异对计算模态参数的影响。

In the modeling of growth macroeconomic rational expectations , using the method of quadratic optimal dynamic programming, the steady state equations of Riccati equations under normal conditions is discussed, which makes a firm basis for the modeling of macroeconomic rational expectations .

针对采用二次最优动态规划建立的宏观增长经济合理预期模型，探讨了Riccati递推方程的稳态方程求取问题，推导出了一般情况下的Riccati稳态方程，为建立合理预期数量经济模型奠定了基础。

Introduces the notion of Feynman's path integrals and path integrals approach to financial modeling; Derives the path-dependent options pricing formula by making use of the Lagrange form of path integrals; Discusses Ilinski(2003)'s Gauge model which based on path integrals and fibre bundle, and its application for real-options evaluation; Summarizes the general modeling framework of options evaluation, taking advantage of the Hamilton form of path integrals; Applies the Geske-Johnson's analytical approximation in the path integrals form to the real-options evaluation for investment decisions, detailed procedure is presented under the assumption that underlying asset price dynamic follows a geometric Brownian motion, and the integral reduction for multivariate normal integrals and polynomial approximation for real-options evaluation is given.

系统论述了路径积分概念方法及其在期权估值中的应用，利用路径积分方法的Lagrange表述推导了路径依赖期权定价公式：探讨了基于路径积分和纤维丛的Gauge模型思想方法在实物期权价值评估中的应用；利用路径积分的Hamilton表述形式，总结了基于Hamilton表述的期权估值一般化框架；基于路径积分的形式框架建立了一个新的投资期权估值模型，并在具体的估值算法中给出了多重正态积分的降阶计算和期权价值的多项式逼近方法。

In order to ensure the reasonable modeling method for thermodynamics model, by adopting these four kinds of models and the reference model, the typical thermodynamics characteristic in drum-the dynamic process of"false level"were dynamically simulated, the results of simulation indicate: The modeling method of considering the changing rates of pressure and volume simultaneously is more reasonable, it's simulation result can be consistent with the result of the reference model, and the numeric error is within±5%, so, this method can be used to build thermodynamics model of drum level.

为确定合适的热力学模型建模方法，采用这四种模型和参考模型，对汽包中典型的热力学性质-"虚假水位"现象的动态过程进行了动态仿真，结果表明：同时考虑汽包体积变化率和压力变化率的建模方法，其动态仿真结果完全可以正确地跟踪参考模型的仿真结果，并且数值误差在5%以内，故该建模方法可以用来建立汽包水位热力学模型。

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。