搜索结果: 1-11 共查到“知识库 工程图学 CAD”相关记录11条 . 查询时间(0.215 秒)
现代CAD技术发展与工程图学深入改革
工程图学 CAD技术 三维实体造型 课程改革
2009/10/20
现代CAD技术的发展极大地促进了工程设计理念和方式的变革,决定着工程图学课程深入改革的任务和方向。三维设计理念是工程图学面临的新课题,在图学教育中引入三维实体造型理论和技术,使教学过程与工程应用相联系,是推进工程图学课程深入改革的必然趋势。
Bridging the gap between CAD and CAE using STL files
data exchange mesh geometry processing CAD/CAE solid construction STL
2009/8/19
In many areas of industry, it is desirable to have fast and reliable systems in order to quickly obtain suitable solid models for computer- aided analyses. Nevertheless it is well known that the data...
Exchange of CAD Part Models Based on the Macro-Parametric Approach
CAD exchange of design intents parametric STEP
2009/8/19
It is not possible to exchange parametric information of CAD models based on the current version of STEP. The design intent can be lost during the STEP transfer of CAD models. The Parametrics Group of...
S-CODE: A Subdivision Based Coding System for CAD Models
Subdivision surfaces Surface fitting Approximation Data compression
2009/8/19
A large scale polygon models are often used to approximately represent 3D CAD models in Digital Engineering environment such as DMU (Digital Mockups) and network based collaborative design. However, t...
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...
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...
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...
Rapid Prototyping of Polymer Microfluidic Devices Using CAD/CAM Tools for Laser Micromachining
Excimer laser micromachining CAD/CAM RP polymer microstructures
2009/8/19
A CAD/CAM system has been developed for rapid prototyping (RP) of microfluidic devices based on excimer laser micromachining. The system comprises of two complementary softwares. One, the CAM tool, cr...
Simulation Based Production Using 3-D CAD in Shipbuilding
Simulation Based Production Digital Manufacturing 3-D CAD Shipbuilding AJISAI
2009/8/19
The application of three-dimensional (3-D) CAD has been popularized for design and production and digital manufacturing has been spreading in many industrial fields. By simulation of the production pr...
An optimization-based computational method for surface fitting to update the geometric information of an existing B-Rep CAD model
Integration CAD/Analysis Finite Element Mesh Nurbs surface
2009/8/19
For several years, researchers have focused on improving the integration of the CAD, CAM and Analysis through a better communication between the various analysis tools. This tendency to integrate the ...
家装CAD中基于几何约束的交互语义分析算法
计算机应用 交互语义分析 几何约束
2009/8/19
阐述了几何约束的含义及其分类，分析了几何约束在家装CAD中的重要性以及家装CAD中应用几何约束的实现难点，给出了基于网格的前处理算法、基于约束优先级的交互语义分析算法和语义分析的后处理算法。基于网格的前处理算法可以对离散点进行自适应校正，对数据进行动态更新，对水平、垂直的处理十分方便；基于约束优先级的交互语义分析算法可以自动捕捉用户的语义、处理几何对象之间的关系，建立房屋的拓扑结构；语义分析的后处...