This paper presented a dart-cutting algorium,which grounded on the energy-based three-dimensional surface flattening.
本文在基于能量模型的曲面展开算法基础上,研究了服装曲面上省道的添加算法。
This paper presented an improvement method for three-dimensional surface flattening,compared to other surface flattening algorithms based on spring-mass model.
相对于其他基于弹簧-质点模型的曲面展开算法,本文提出了改进的曲面展开方法:首先,采用三角面片模型来表达三维曲面;其次,基于能量的弹簧质点模型将三维曲面展开为二维面片,在此模型中,面料的经纬向的机械性能替换原有的弹簧力。
According to the latest theoretic study of the surface flattening, several typical methods for surface fattening are elaborated in detailed from three aspects; geometry flattening, mechanics flattening and geometry flattening/mechanics revision including the principles, characters and applications.
从几何展开、力学展开和几何展开/力学修正等三个方面论述了具有代表性的曲面展开方法,包括它们的原理、特点和工程应用情况,并提出了未来的发展方向。
Parametric trimmed surface development is primarily used for flattening a 3D surface into a corresponding 2D pattern or surface.
提出一种基于物理模型的参数化曲面展开方法 。
To improve the precision of one-step forming simulation and avoid shearing closedown of unit,the currently used method was improved by proposing the model of surface spreading four-node isoparametric membrane element and adopting partial reducing integral technology.
为了进一步提高一步成形模拟的计算精度和避免单元的剪切闭锁,提出改进型曲面展开四节点等参膜单元模型,即在单元内力计算中采用了局部减缩积分技术,对现有算法进行了改进。
Creating technology of carving work based of fractal and surface expandedness;
基于分形和曲面展开的雕刻作品生成技术
Research on Free Surface Flattening Algorithm and Numerical Control Machining;
自由曲面展开算法及其数控加工研究
Research of Surface Development Method Based on B-Spline and Geometrical Mapping;
基于B样条和几何映射的曲面展开法研究
Flattening of Composites Complex Surfaces Based on CATIA 3D Model
基于CATIA三维数模的复合材料复杂曲面展开
Research and Application on Surface Unfolding of One Step Inverse Forming FEM;
汽车车身曲面展开一步逆成形有限元法及其应用
Equal apothem surface development method for hyperboloid metal wall
双曲面金属幕墙的等边心距展开方法
Surface Expanded Algrithm and Computer Application of Curved Metal Wall;
曲面金属幕墙平面展开算法及计算机应用设计
Conformal mappings from 3D surfaces to sphere;
三维曲面到球面的数值共形映射及球调和展开
Can not be carried out in space surface mold on the surface precision processing method
不可展开空间曲面模具表面精密加工方法研究
Application of Surface-flattening Technology in Blank Development of Automotive Cover;
曲面展平技术在汽车覆盖件毛坯展开中的应用
Design of Development Method for Double Curved Surfaces of Metal Curtain Wall and Parts Placement Optimization;
曲面金属幕墙展开方法及排样优化设计
A Method for Development of Hull Plate Surface Based on Its Quasi-Rulings
基于伪直母线的船体曲面钢板展开方法(英文)
Study on curve equation of unfolded-drawing on the cut-cone surface
截头圆锥体表面交线展开图曲线方程的研究
TEXTURE MAPPING ON ARBITRARILY CURVED SURFACES BY USING PLANAR DEVELOPMENT
一种应用平面展开完成任意曲面纹理映射的新方法
On Approximate Development of Straight Grained Helicoids;
三角形等面积法在直纹圆柱螺旋曲面近似展开中的应用
The Full and Essential Condition of a Ruled Surface Being a Developable Surface
直纹曲面是可展曲面的一个充要条件
Researches on Techniques for Optimized Generation of Addendum Surfaces and Unfolding Dimension Modification of Bending Parts;
工艺补充面生成优化及弯曲件展开尺寸修正技术研究
Research on surface flattening technology of the precision forming for large curvature reflector panel
大曲率高精度反射器面板精密成形坯料展开技术
Special Curves and Developable Surfaces in 3-Space Minkowski;
三维Minkowski空间中的特殊曲线和可展曲面