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变形曲面
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  deformation surface
     Research on the Mesh Optimization and Geometry Reconstruction of Deformation Surface Based on Pro/E
     基于Pro/E的变形曲面网格优化及几何重建技术研究
短句来源
     Through visualization,the three-dimensional deformation surface in whole stress field was drawn.
     通过可视化,绘出了整个应力场中的三维变形曲面.
短句来源
     The approximate solution of deformation surface and stress of elastic thin plate is very accurate.
     用最小势能原理推导弹性薄板变形曲面及应力,均获得精度较高的近似解.
短句来源
     In addition,in comparison with the deformation surface of CTC path,it was found that the differences between two kinds of surfaces were obvious. Therefore,the effect of stress path on the constructive relation of soil cannot be neglected.
     通过与CTC路径下的变形曲面比较,发现两者之间存在显著差别,验证了应力路径对本构关系的影响是不可忽略的.
短句来源
  deformed surface
     A Best-Fit Method for Deformed Surface of Antennas
     天线变形曲面的一种拟合方法
短句来源
     After discussing about the defects of Skeleton Subspace Deformation, we present a new layered algorithm of SSD with displacement map. After a preliminary conventional SSD, a displacement map is constructed based on the pose of the skeleton and the original surface. And then synthesize the flawed deformed surface with the displacement map and thus solve the problem called "collapse" during conventional SSD.
     针对主流的骨骼子空间变形算法(SSD)的缺陷,本文进行了分析,提出一种新的骨骼驱动曲面变形技术—“采用曲面位移图的骨骼驱动曲面变形算法”,该算法首先利用传统的SSD算法进行初步曲面变形,然后根据当前姿势及原曲面控制点信息计算曲面位移图,最后合成曲面位移图和初步变形曲面得到最终变形曲面
短句来源
     This paper presents a computing method based on least-square,which gives a best-fit surface as realistic reflector for deformed surface,so that it is possible to improve the accuracy of real reflector and the an-tenna performances,and to reduce the cost of manufacturing.
     对变形曲面通过计算求其最佳拟合(又称吻合)曲面作为理想曲面,可以提高变形曲面的精度,从而达到降低成本、改善性能的效果。
短句来源
     Based on the presumption that the deformed surface is described as a kind of surface of spherical cap, the problem about the relationship between load and deformation was resolved.
     在将变形曲面作球冠面假设后 ,获得了挠度与载荷之间的特征关系 .
短句来源
  “变形曲面”译为未确定词的双语例句
     This kind of surface may be reflector either distorted by manufacturing or deformed by design loads.
     这种变形曲面可以是具有一定制造误差的反射面,也可以是设计曲面在设计载荷作用下的变形反射面。
短句来源
     ON THE GAUSS MAP OF H - DEFORMABLE SURFACES
     关于H-变形曲面的Gauss映射
短句来源
     Finite-Elements Model of Deformable Surface
     可变形曲面的有限元模型
短句来源
     With the theory and methods in this dissertation, chapter 5 introduces the reconstruction model in VDDS-CAD(the Virtual Deformation Design CAD System), coming up with some examples of surface reconstruction.
     第五章以摩托车曲面虚拟变形设计软件的开发为背景,简要介绍摩托车曲面虚拟变形设计软件的概况,然后详细讨论变形曲面重建模块的主要功能及实现方法,并给出和分析了系统的应用实例。
短句来源
     secondly, the surface error is fitted at terms of Zernike polynomials, and the Zernike coefficients are attained;
     然后利用Zernike多项式拟合变形曲面得到Zernike系数;
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  deformation surface
In the absence of large-deformation surface waves, the simultaneous DPIV and shadowgraph measurements reveal good agreement between the surface vorticity and deformation field for small- and large-scale vortical structures.
      
  deformed surface
Turbulent flow over a deformed surface creates dipole sources of sound, which may considerably increase the acoustic emission as compared with the quadrupole emission from a boundary layer on a smooth plate [1, 2].
      
The difference between the torsion of a curve L on the original surface and the torsion of the corresponding curve on the isometric deformed surface at points corresponding by the isometry is called the twist of L.
      
The fractal dimension of the deformed surface profile is shown to depend on the mean spacing between bands of localized deformation and on the parameters of the material fine crystal structure.
      
When the duration between two successive bounces becomes of the order of the impact duration, the bead no longer bounces but oscillates on the elastically deformed surface before coming to rest.
      
Observations performed on the deformed surface of superplastically deformed tensile and shear Pb-62%Sn samples and bi-axially formed AA7475 samples directly indicate that cooperative grain boundary sliding, i.e.
      
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  deformable surfaces
Adhesion is attractive and has a close relation to many modern problems of contacts between plastically deformable surfaces on the micro/nano-scale (such as microelectromechanical systems (MEMS) and nanotechnology).
      
The scheme is based on geometric deformable surfaces moving towards the objects to be detected.
      
The general approach also shows the relation between classical deformable surfaces obtained via energy minimization and geometric ones derived from curvature flows in the surface evolution framework.
      
A new notion of normal traces over Lipschitz deformable surfaces is developed under which a generalized Gauss-Green theorem is established even for these extended fields.
      
Computational Mesh Generation for Vascular Structures with Deformable Surfaces
      
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In this paper, from four- and three-order differential equations defined by cubic and quadratic splines of generaized beam. The beam functions with many boundary conditions and under various loads are reduced. The approximate solution of deformation surface and stress of elastic thin plate is very accurate.

本文从三次及二次样条梁函数定义的四阶及三阶的广义梁的微分方程出发,由于采用了广义函数,可推导出连续荷载、间断荷载、集中荷载、集中弯矩等各种荷载及各种边界条件(简支、固支、自由)下的多项式梁函数.用最小势能原理推导弹性薄板变形曲面及应力,均获得精度较高的近似解.

How can we acquire the distribution of all the information (such as displacement curved surface) and calculate other character information (stresses) from the discrete information solved after the information(such as displacements of plane stresses plate) at discrete points (mesh nodes) of a continuous field is obtained? The local interpolation and local fitting are the usual approaches, but the accuracy is not so high as expected.The finite element analysis treated by the element extension Ritz method (EERM)...

How can we acquire the distribution of all the information (such as displacement curved surface) and calculate other character information (stresses) from the discrete information solved after the information(such as displacements of plane stresses plate) at discrete points (mesh nodes) of a continuous field is obtained? The local interpolation and local fitting are the usual approaches, but the accuracy is not so high as expected.The finite element analysis treated by the element extension Ritz method (EERM) may either improve accuracy or save CPU time. The improvement of accuracy is owing to having used the information in the element adjacent domain to deal with the information in the element. The saving of CPU time lies in having utilized rough mesh in the finite element analysis.

有限元分析给出连续场在若干离散点(网格结点)的信息(例如平面应力板的位移)。如何利用这些离散点信息获得全场信息的连续分布(变形曲面)和进一步推算其它性态信息(应力),一般采用分片插值和分片拟合方法。本文提出了单元延拓里兹法,并将其应用于有限元分析中的信息处理。因利用了单元邻近区域的信息来处理单元内部的信息,从而提高了精度;利用较粗的网格作有限元分析,又节约了计算时间。

In this paper, we consider the infinitesimal Ⅱ-isometry deformations of surface M in E~3, which preserve two principal curvatures k_1 and k_2. We obtain an necessary and snfficient condition of surface M, which admit nottrivial infinitesimal this deformation for two cases Gauss curvature K≠0 and K≡0(not-developable and developable surface), see Theorem 1 and 2.

本文研究欧氏空间E~3中曲面M的无穷小O.BonnetⅡ-等距变形(简称BⅡ-等距)。所谓BⅡ-等距变形是指保持曲面的两主曲率和第Ⅱ基本形式都不变的变形。允许非平凡的这种变形的曲面称为BⅡ曲面。文中按M的Gauss曲率K为零与否(或可展与否)分两种情况讨论。定理1给出非可展曲面为无穷小BⅡ曲面的充要条件:定理2分别对柱面、锥面与切线曲面共三种情况详尽地讨论了可展曲面的无穷小BⅡ-等距变形以及它的自由度。

 
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