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geometric constrains
相关语句
  几何约束
     STUDY ON TOLERANCE DESIGN BASED ON VARIATIONAL GEOMETRIC CONSTRAINS NETWORK
     基于变动几何约束网络的公差设计研究
短句来源
     Based on feature definition of ISO/TC 213's geometrical product specification (GPS), the variational geometric constrains network(VGCN) and its kinematic model are presented.
     基于ISO/TC213的几何产品规范标准中的特征定义,提出了变动几何约束网络概念,并给出了它的运动学模型。
短句来源
     Based on the definition and classification of varia-tional geometric constrains, the generation and kinematic model of variational geometric constraints network (VGCN), the generation rales of tolerance types and representation method of tolerance network are studied, and the optimization scheme of tolerance values are presented.
     在阐述和完善变动几何约束的定义和分类,变动几何约束网络的生成及其运动学模型的基础上,研究了计算机辅助公差类型的生成规则、方法,公差网络的表示方法,以及公差大小的最优分配方法。
短句来源
     The relation between project constrains and geometric constrains was established.
     将设计中的约束分为3类:工程约束、适配约束和几何约束.
短句来源
     As the foundation of motion control, driving dynamics equations with velocity and geometric constrains are given firstly.
     作为驱动控制的基础,首先给出了驱动动力学基本方程式,分析了速度和几何约束
  “geometric constrains”译为未确定词的双语例句
     Automatic Rectification of Texture for Building Facades Based on Vanishing Point Geometry and Geometric Constrains of Parallel Object Lines
     基于灭点理论和物方平行线几何约束的建筑墙面纹理自动纠正
短句来源
     Nonlinear geometric constrains and nonlinear gravitational moments are present as a result of the spacers and galloping control devices. In this paper, basic dynamic equations for bundle transmission lines in a global coordinate system are developed on the basis of direct equilibrium method and virtual work principle, respectively.
     导线结构的动力学建模方面分别利用了直接平衡法和虚功原理方法推导导线段的总位移控制微分方程,特别是用虚功原理方法推导了间隔棒和防舞器的位移控制微分方程;
短句来源
     In this thesis, we have presented the principle of wheel-track spatial geometric constrains. On the base of Hertz non-linear elastic contact theory, we derived the wheel-track normal forces. On the base of Kalker's creep theory, we derived the wheel-track creep forces and modified the values according to Shen's non-linear theory.
     介绍了轮轨接触几何原理,采用赫兹非线性弹性接触理论求解轮轨法向力,关于轮轨蠕滑力的计算,首先按Kalker线性理论计算,然后采用沈氏理论进行非线性修正。
短句来源
     Constrains were divided into three type: project constrains, assembly constrains and geometric constrains. Feature based parametric model methods was adopted, which was expressed with three layer system configuration of application layer, description layer and graphic layer.
     采用了基于特征的参数化造型方法,用应用层、描述层和图形层三层体系表达基于特征的参数化模型,将该模型作为参数驱动的基础.
短句来源
  相似匹配句对
     The relation between project constrains and geometric constrains was established.
     将设计中的约束分为3类:工程约束、适配约束和几何约束.
短句来源
     How to solve the geometric problem with constrains is the critical problem.
     这里关键的问题是求解带有约束条件的几何问题。
短句来源
     K-geometric Sequence
     K-等比数列
短句来源
     Geometric Prints
     几何印花极简制造
短句来源
     THE CONSTRAINS OF THE URBANIZATION PROCESS IN CHINA
     中国城市化的约束
短句来源
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  geometric constrains
This prepatterning requires cooperative cell movements and associated mechano-geometric constrains.
      
Role of cooperative cell movements and mechano-geometric constrains in patterning of axial rudiments in Xenopus laevis embryos
      


Being an essential concept in CAD/CAM and even in Concurrent Engineering, feature is the theoretical basis of related technology, but formal defination of it is still wanted. On the basis of existing literature, this paper define form feature as' three-tuple aggregation (G, D, S) relevant to the whole artifact or a part of it, where G, D, S are knowledge of geometry,manufacturing-domain (CIM domain) and a specific stage of product life cycle CLM stage), respectivety. These knowledge with aggregation and creating...

Being an essential concept in CAD/CAM and even in Concurrent Engineering, feature is the theoretical basis of related technology, but formal defination of it is still wanted. On the basis of existing literature, this paper define form feature as' three-tuple aggregation (G, D, S) relevant to the whole artifact or a part of it, where G, D, S are knowledge of geometry,manufacturing-domain (CIM domain) and a specific stage of product life cycle CLM stage), respectivety. These knowledge with aggregation and creating rules can be used for design, recognition and .classification'. In this defination,non--geometric semantics of form feature are emphasize d, and featured-primitive,as feature constructors, are defined by augmented adjacency graph (AAG) and geometric constrains. Consequently, tie volumetric and boundary propertiescan be unified, and constraint -based design paradigm introduced. Finally, algebraic specification is utilized to represent form feature definition , with examples given.

本文研究形状特征的形式定义,并强调了形状特征的非几何语义,引入面邻接图AAG和几何约束集来定义特征体素,使形状特征的空间属性和边界局性结合起来,从而面向基于约束的设计。最后,作者尝试用代数规格说明来定义特征,并给出了实例。

In order to improve Goodman Joint Model,a Friction-Sliding Model of Joints (FSMJ) has been proposed by M.Katona without having to use stiffness parameters (Kn,Ks).But it is difficult to obtain reliable results from FSMJ because of the mutual intrusion of solid elements at a common interface.A nodal coupling analysis method is suggested bassed on sequential vector determination of geometric constrained boundary. By using the proposed metnod, some complex problems in rock mechanics with combinative model...

In order to improve Goodman Joint Model,a Friction-Sliding Model of Joints (FSMJ) has been proposed by M.Katona without having to use stiffness parameters (Kn,Ks).But it is difficult to obtain reliable results from FSMJ because of the mutual intrusion of solid elements at a common interface.A nodal coupling analysis method is suggested bassed on sequential vector determination of geometric constrained boundary. By using the proposed metnod, some complex problems in rock mechanics with combinative model of intersected joints can be successfully solved. The method has been applied to tile monitoring analysis of Dong Jing arch dam and the calculated results are satisfactory.

为了改善Goodman节理单元,M.Katona提出了不考虑刚度系数的摩擦──滑动节理模型.但是由于缺乏可行的数学分析方法,因而得不到真实可信的结果,特别是出现了节理面块体相互嵌入问题,影响了它的实际应用.本文采用了节点偶对分析方法,该方法是建立在几何力学约束边界的序列矢量判定的基础上,同时还可以顺利地解决节理交汇组合等复杂的岩体力学问题,并将该法应用于东江大坝监测分析之中,实测资料表明该法的计算结果令人满意.

A dimension-driven of multiview method based on constraints is given in this paper, The method sets up a set of extends graphics data structure,which describes both the geometric property and geometric constrains in an uniform way. The internal parametric model of multiview will be constructed automatically. And realize dimension-driven of multiview.

提出一种基于约束的多视图尺寸驱动的方法。该方法是通过建立一组具有参数化特性的、扩展的图形数据结构,用统一的形式来表示多视图间图形的几何元素和几何约束,由系统内部自动建立起多视图的参数化模型,进而实现多视图间的尺寸驱动。

 
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