搜索结果: 31-45 共查到“知识库 工程图学”相关记录94条 . 查询时间(1.281 秒)
Virtual Presentation and Customization of Products Based on Internet
Product Presentation Product Customization Virtual Reality E-commerce Network
2009/8/19
Through reviewing and comparing the current virtual shopping malls web sites integrated VR into E-commerce, this paper analyzed both the advantages and disadvantages of two kinds of methods for produc...
Ontology-Based Multi-level Knowledge Framework for a Knowledge Management System for Discrete-Product Development
Ontology Knowledge framework Knowledge map Expert system
2009/8/19
This paper introduces an approach to an ontology-based multi-level knowledge framework for a knowledge management system for discrete-product development. Participants in a product life cycle want to ...
Sharing CAD models based on feature ontology of commands history
Feature-based modeling history-based parametric interoperability, ontology
2009/8/19
Different CAx systems are being utilized throughout the product lifecycle due to the practical reasons in the supply chain and design processes. One of the major problems facing enterprises of today i...
A Controllable Ternary Interpolatory Subdivision Scheme
ternary subdivision interpolation Ck-continuity shape controllability
2009/8/19
A non-uniform 3-point ternary interpolatory subdivision scheme with variable subdivision weights is introduced. Its support is computed. The C0 and C1 convergence analysis are presented. To elevate it...
Generalized Scheme for the Interpolation of Arbitrarily Intersecting Curves by Catmull-Clark Subdivision Surfaces
Subdivision Surfaces Interpolation Polygonal Complexes
2009/8/19
This paper presents a scheme for interpolating intersecting uniform cubic B-spline curves by Catmull-Clark subdivision surfaces. The curves are represented by polygonal complexes and the neighborhoods...
Development of Knowledge Code Converter for Design Knowledge Management
knowledge management knowledge-based CAD design document
2009/8/19
This is a report on a new methodology to manage design knowledge by utilizing a knowledgebased CAD and a prototype system named C3 (Cubic; CAD knowledge Code Capacitor), which is being developed using...
Identification of Topological Entities and Naming Mapping for Parametric CAD Model Exchanges
CAD Model Exchange Macro Parametric Naming Mapping
2009/8/19
As collaborative design and configuration design gain increasing importance in product development, it becomes essential to exchange parametric CAD models among participants. Parametric CAD models can...
Surface Extraction from Point-Sampled Data through Region Growing
point-sampled geometry surface reconstruction surface extraction
2009/8/19
As three-dimensional range scanners make large point clouds a more common initial representa-tion of real world objects, a need arises for algorithms that can efficiently process point sets. In this p...
Energy based multiple refitting for skinning
Surface approximation Surface skinning Curve compatibility
2009/8/19
The traditional method of manipulation of knots and degrees gives poor quality of surface, if compatibility of input curves is not good enough. In this work, a new algorithm of multiple refitting of c...
Topology Representation for the Voronoi Diagram of 3D Spheres
Euclidean Voronoi diagram of spheres non-manifold model data structure
2009/8/19
Euclidean Voronoi diagram of spheres in 3-dimensional space has not been explored as much as it deserves even though it has significant potential impacts on diverse applications in both science and en...
Problems For Line Labelling: A Test Set of Drawings of Objects with Higher-Valency Vertices
Line labelling K-Vertices Rotationally-Symmetric Vertices Creative Design
2009/8/19
Interpreting a natural line drawing as a solid object requires simplifying assumptions in order to make the problem more tractable. Unfortunately, some of the assumptions made in the past have overly ...
On 5-Axis Freeform Surface MachiningOn 5-Axis Freeform Surface Machining Optimization: Vector Field Clustering Approach
5-axis CNC machining Tool path optimization Vector field clustering Iso-scallop
2009/8/19
A new approach based on vector field clustering for tool path optimization of 5-axis CNC machining is presented in this paper. The strategy of the approach is to produce an efficient tool path with re...
On the Development of Lofts for Doubly Curved Sheet Metal Components
FPD SMC Loft Generation Point Transformation Algorithm Topological Model
2009/8/19
Practical automated flat pattern generation with inbuilt production features for doubly curved sheet metal components (SMCs) is addressed here utilizing a new and unique Point Transformation Algorithm...
Integrated CAD System for Ship and Offshore Projects
Shipbuilding Offshore projects Concurrent design Product model
2009/8/19
Nowadays major shipbuilding companies are trying to expand their business not only to shipbuilding but to offshore projects as well. DSME is one of them. DSME is trying to set up a flexible design and...
Parametric Modeling and Shape Optimization of Offshore Structures
Parametric modeling shape optimization offshore structures seakeeping
2009/8/19
The paper presents an optimization system which integrates a parametric design tool, 3D diffraction-radiation analysis and hydrodynamic performance assessment based on short and long term wave statist...