Web-Enabled Feature-Based Modeling in a Distributed Design Environment

1999 ◽  
Author(s):  
Jae Yeol Lee ◽  
Hyun Kim ◽  
Sung-Bae Han
Keyword(s):  
Collaborative Design ◽  
Feature Modeling ◽  
Feature Model ◽  
Internet Technology ◽  
Global Network ◽  
Dynamic Feature ◽  
Distributed Design ◽  
Product Modeling ◽  
Design Environment ◽  
Feature Based

Abstract Network and Internet technology open up another domain for building future CAD/CAM environments. The environment will be global, network-centric, and spatially distributed. In this paper, we present Web-enabled feature-based modeling in a distributed design environment. The presented approach combines the current feature-based modeling technique with distributed computing and communication technology for supporting product modeling and collaborative design activities over the network. The approach is implemented in a client/server architecture, in which Web-enabled feature modeling clients, neutral feature model server, and other applications communicate with one another via a standard communication protocol. The paper discusses how the neutral feature model supports multiple views and maintains naming consistency between geometric entities of the server and clients as the user edits the part in a client. Moreover, it explains how to minimize the network delay between the server and client according to dynamic feature modeling operations.

Web-Based Cad Tools for a Networked Manufacturing Service

1998 ◽  
Author(s):  
Fu-Chung F. Wang ◽  
Paul K. Wright
Keyword(s):  
New Product Development ◽  
Design Tool ◽  
Internet Technology ◽  
Machining Process ◽  
Global Network ◽  
The Internet ◽  
Distributed Design ◽  
Cad Tools ◽  
Web Based ◽  
Design And Manufacturing

Abstract New techniques in Information Technology are now changing not only our daily life, but also the professional practice of product design and manufacturing for new product development. Internet technology in particular opens up another domain for building future CAD/CAM environments. This environment will be a global, network-centric environment with various members providing different software tools, manufacturing facilities, and analysis services for distributed design and fabrication. In this paper, we first briefly describe a vision and current development in a distributed design and manufacturing environment. The paper then emphasizes how current CAD tools will evolve to facilitate the distributed design and fabrication process. In particular, the development of a set of Web-based design tools for fabricating parts using a machining process via the Internet is presented. Experiments on machining 2-1/2 D and freeform parts through this Java-based design tool have shown the feasibility for a networked machining service via the Internet.

“Thin” vs. “Fat” Client of Web-Based CAD Tools

2000 ◽  
Author(s):  
Charlie C. L. Wang ◽  
Matthew M. F. Yuen ◽  
Yu Wang
Keyword(s):  
Low Cost ◽  
Software Tools ◽  
Internet Technology ◽  
Global Network ◽  
Distributed Design ◽  
Cad Tools ◽  
Web Based ◽  
Thin Client ◽  
Cad Cam ◽  
Cad Tool

Abstract Internet technology in particular opens up another domain for building future CAD/CAM environment. This environment will be a global, network-centric environment with various members providing different software tools, manufacturing facilities, and analysis services for distributed design and fabrication. Web-based CAD tools play a prominent role in the environment. Two kinds of clients can be used to develop a web-based CAD tool now, one is “thin” client, and another is “fat” client. This paper compares the advantage of “thin” and “fat” client, and explains the advantage of using low-cost, configurable, CAD components.

Interoperability, Shape Representation, and Geometric Processing for Network-Enabled Virtual Prototyping

2000 ◽  
Author(s):  
Jae Yeol Lee ◽  
Joo-Haeng Lee ◽  
Hyun Kim ◽  
Sung-Bae Han
Keyword(s):  
Shape Representation ◽  
Virtual Prototyping ◽  
3D Models ◽  
Internet Technology ◽  
Global Network ◽  
Design Environment ◽  
Modeling And Analysis ◽  
Assembly Modeling ◽  
Cad Models ◽  
Geometric Processing

Abstract Internet technology opens up another domain for building future CAD/CAM environment. The environment will be global, network-centric, and spatially distributed. In this paper, we present a new approach to network-centric virtual prototyping (NetVP) in a distributed design environment. The presented approach combines the current virtual assembly modeling and analysis technique with distributed computing and communication technology for supporting virtual prototyping activities over the network. This paper focuses on interoperability, shape representation, and geometric processing for distributed virtual prototyping. STEP standard and CORBA-based interfaces allow the bi-directional communication between the CAD model and virtual prototyping model, which makes it possible to solve the problems of interoperability, heterogeneity of platforms, and data sharing. STEP AP203 is utilized as a means of transferring and sharing product models. In addition, Attributed Abstracted B-rep (AAB) is introduced as 3D shape abstraction for transparent and efficient transmission of 3D models and for the maintenance of naming consistency between CAD models and virtual prototyping models over the network. Further, this paper discusses geometric processings needed for distributed virtual prototyping activities such as collision detection and interactive assembly modeling.

Research and Implementation on Automatical Adjustment Method of Design Feature Model

2012 ◽  
Vol 197 ◽  
pp. 750-754
Author(s):  
Yao Chen ◽  
Guo Yuan Zhang ◽  
Jun Chao Wei ◽  
Xiu Tian Yan ◽  
Miao He
Keyword(s):  
Feature Recognition ◽  
Design Feature ◽  
Feature Modeling ◽  
Feature Model ◽  
Concurrent Design ◽  
Machining Feature ◽  
Feature Based ◽  
Feature Based Design ◽  
Product Realization

Traditional engineering design and realization typically follows a sequential pattern as described by many research publications such as French, Pahl and Beitz. These design methodologies face challenges when time is essence in product realization lifecycle. In contrast, as the design process of a product evolves，this new method incrementally creates machining feature model and realizes concurrent design feature and machining feature modeling based on an algorithm developed for local feature recognition. In addition, the method accelerated the determination of the area that require to be recognized by utilizing a dynamic link list to record the changing information of topological elements, the design features of the model generated by the feature-based design, processing and feature recognition is generated through feature model.

Feature-Based Collaborative Design in VPDM

2010 ◽  
Vol 37-38 ◽  
pp. 475-481
Author(s):  
Ke Shan Liang ◽  
Jian Zhong Shang ◽  
Li Tang ◽  
Yu Jun Cao ◽  
Chen Cheng
Keyword(s):  
Collaborative Design ◽  
Feature Model ◽  
Sequence Diagram ◽  
Prototype System ◽  
Cad Systems ◽  
Feature Based ◽  
Feature Expression

Based on present research states and new problems of current collaborative design (CD), the paper presents a solution of building Virtual PDM (VPDM) for developing a CD platform on heterogeneous CAD and PDM systems among enterprises. Firstly, VPDM definition and characteristics are put forward, the CD framework in VPDM is proposed and each component of VPDM are analyzed. Secondly, operations and features in CAD are described with Express-G, a unified feature model is built and mapped into database mode. And then, feature-based CD sequence diagram, clients’ status and feature expression are introduced in VPDM environment. At last, prototype system developed using above method makes CD come true in two commercial CAD systems and two commercial PDM systems, which proves that our approach works well.

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