DEVELOPMENT OF A KNOWLEDGE-BASED INTELLIGENT CAD SYSTEM FOR AUTOMOTIVE PANEL DIE

2008 ◽  
Vol 07 (01) ◽  
pp. 51-54 ◽  
Author(s):  
HUI-XIA LIU ◽  
WEI WEI ◽  
XIAO WANG ◽  
LAN CAI
Keyword(s):  
Die Design ◽  
Design System ◽  
Working Process ◽  
Cad System ◽  
Knowledge Based ◽  
Working Principle ◽  
Panel Die ◽  
Automotive Panels ◽  
Automotive Panel

A knowledge-based intelligent die design system for automotive panels is developed by UG software platform. This system can accomplish design intelligently and automatically through engineering rules in the knowledge base. The framework and implementation of the system are discussed. Finally, a case study of the panel die design of car trunk in the system is implemented, which illustrates working process, working principle, implement method and practicability of the system, and validates the advanced design conception proposed in this paper.

Design and Implementation of an Intelligent CAD System

1987 ◽  
Author(s):  
M. J. Jakiela ◽  
P. Y. Papalambros
Keyword(s):  
Computer Aided Design ◽  
Design System ◽  
Knowledge Based Systems ◽  
Production Rules ◽  
Automated Assembly ◽  
Cad System ◽  
Design And Implementation ◽  
Knowledge Based ◽  
System Requirements ◽  
Aided Design

Abstract System requirements and system design for integrating a production rule program and a computer aided design system are presented. An implementation using a commercially available graphics modeling system is described. A “suggestive mode” interface is programmed as an example with application to design for automated assembly. Initial use of the implementation indicates that encoding production rules is more difficult than with conventional text-only knowledge-based systems, but that this system is a more effective way to use artificial intelligence techniques in design.

A Feature Extraction Interface for CAD Part Models

1991 ◽  
Author(s):  
David R. Nitschke ◽  
Yuh-Min Chen ◽  
R. Allen Miller
Keyword(s):  
Design System ◽  
Relative Positioning ◽  
Neutral Form ◽  
Cad System ◽  
Knowledge Based ◽  
Functional Specification ◽  
Design And Manufacturing ◽  
Feature Based ◽  
The Individual ◽  
Knowledge Based Design

Abstract The concept of “Features” has been recognized as a neutral form of communication between design and manufacturing. Since virtually all CAD systems define part models using B-Rep or CSG formats, a facility is needed to convert geometry based part models to ones which are feature based. This paper outlines the framework of a facility which would enable part models from any type of CAD system to be converted to a format which could be analyzed using a knowledge based design system. This facility relies on the user to recognize and isolate the individual features of the model and then extracts the dimensions, locations and relative positioning of the features within the model. These features are then organized into a feature graph for the construction of a feature based part representation. The procedures for the construction of this part representation include feature instantiation, feature placement and functional specification.

An approach to automating modular fixture design and assembly

1997 ◽  
Vol 211 (7) ◽  
pp. 509-521 ◽  
Author(s):  
J R Dai ◽  
A Y C Nee ◽  
J Y H Fuh ◽  
A Senthil Kumar
Keyword(s):  
The Other ◽  
Design System ◽  
Fixture Design ◽  
Planning Stage ◽  
Modular Fixture ◽  
Cad System ◽  
Knowledge Based ◽  
Fixture Element ◽  
Fixture Configuration ◽  
Interference Checking

In the development of a modular fixture design system, it is essential to have a modular fixture element database that can be integrated with a CAD system, in addition to the other considerations such as fixture configuration, interference checking, etc., which are also important to fixture designers. This paper describes a new method to create the fixture element database and model the fixturing towers (i.e. subassemblies). By using this method, the database can be effectively created and is easy for use in fixture assembly. The modular fixture tower database is used to represent the subassembly of fixtures. This will simplify the fixture design and assembly process. A built-in interference checking methodology is embedded in the planning stage that will ensure a collision-free fixture design. The system is developed using the knowledge- based system, ICAD, and interfacing with UG-II for modelling the workpiece. Examples of fixture design generated by the system are also provided to illustrate the development.

Design System Mfk—An Important Step towards an Engineering Workbench

1993 ◽  
Vol 207 (2) ◽  
pp. 105-116 ◽  
Author(s):  
H Meerkamm
Keyword(s):  
Computer Aided Design ◽  
Tolerance Analysis ◽  
Design System ◽  
Product Model ◽  
Cad System ◽  
Knowledge Based ◽  
Different Types ◽  
Analysis Design ◽  
Aided Design ◽  
Production Tolerance

The Design System mfk will support the designer by an object-orientated synthesis of parts and an integrated knowledge-based analysis. An own-product model which is completely independent from the data structure of the used computer aided design (CAD) system contains all necessary information on geometry, technology, function and organization. It allows different types of analysis: design for production, tolerance analysis, cost and stress calculation, repeated component search, etc. Usable for products of higher complexity the Design System can be seen as an approach to an engineering workbench.

Development of Knowledge Based Forging Die Design System for Flanges

2019 ◽  
Author(s):  
A. O. Shiba ◽  
H. M. A. Hussein ◽  
S. A. Abdelwahab ◽  
Ibrahim Ahmed ◽  
Vishal Naranje
Keyword(s):  
Die Design ◽  
Design System ◽  
Knowledge Based ◽  
Forging Die

A Golf Head CAD/KBE Optimization Design System

2011 ◽  
Vol 338 ◽  
pp. 304-310
Author(s):  
Yung Yuan Hsu
Keyword(s):  
Optimization Design ◽  
Secondary Development ◽  
Free Form ◽  
Design System ◽  
Solid Model ◽  
Development Environment ◽  
Cad System ◽  
Knowledge Based ◽  
Complex Design ◽  
Free Form Surfaces

The purpose of this study was to construct a knowledge-based CAD/KBE system for the optimal design of golf heads. The inability of conventional CAD systems to identify existing knowledge during design and manufacturing processes is a current development bottleneck. Therefore, this study attempted to effectively introduce and integrate KBE technology into a CAD system, so as to achieve the objective of knowledge driven automation (KDA). This study selected golf iron heads with a complex-design surface as the research subject, adopted commercial CAD software (UG/NX) and its secondary development environment as a platform and applied perturbation vectors in the control of NURBS free-form surfaces. We changed the CAD’s entity shapes and physical properties, integrated the optimal principle of design with a CAD solid model, to automatically drive the CAD solid model of golf iron heads according to the design objectives, and constructed a knowledge-based optimal CAD design technology.

scholarly journals Knowledge-based Engineering for Process Planning and Die Design for Automotive Panels

2010 ◽  
Vol 7 (1) ◽  
pp. 75-87 ◽  
Author(s):  
Yi-Lung Tsai ◽  
Chun-Fong You ◽  
Jhen-Yang Lin ◽  
Kun-Yu Liu
Keyword(s):  
Process Planning ◽  
Die Design ◽  
Knowledge Based ◽  
Knowledge Based Engineering ◽  
Automotive Panels

Study on Modular Design of Trimming Die Structure for Automotive Panels

2014 ◽  
Vol 945-949 ◽  
pp. 73-76 ◽  
Author(s):  
Yi Lin Wang ◽  
Geng Yun Wang
Keyword(s):  
High Efficiency ◽  
Modular Design ◽  
Parametric Design ◽  
Design Method ◽  
Design System ◽  
Systematic Analysis ◽  
Cad System ◽  
Die Structure ◽  
Automotive Panels ◽  
And Function

This paper describes an automated design system for trimming die structure. Considering the complexity of trimming dies, a modular design method was used to define module’s functions and determine the design processes of trimming dies. Through analyzing the relationship of structure and function of trimming dies, the systematic analysis of modularization for trimming dies is achieved from assembly-level division. By using parametric design method, the internal connection between modules is analysis from part-level division, and the module-based design process of complex part is accomplished. The CAD system for trimming dies is developed on platform of UGNX software. The application results show the high efficiency and design flexibility.

Process and Tolerance Considerations in the Automated Design of Fixtures

1994 ◽  
Vol 116 (2) ◽  
pp. 480-486 ◽  
Author(s):  
D. A. King ◽  
A. de Sam Lazaro
Keyword(s):  
Data Structures ◽  
Lead Time ◽  
Design System ◽  
Fixture Design ◽  
Complex Data ◽  
Cad System ◽  
Knowledge Based ◽  
Modern Manufacturing ◽  
Interactive Session ◽  
Knowledge Based Design

The long lead time for jig and fixture design is a serious bottleneck in modern manufacturing. Efforts to automate the design process using intelligent CAD systems have not been taken beyond the prototype stage mainly because of several impediments. These include the requirement of complex data structures to represent the workpiece and its attributes. Two deficiencies in existing systems for fixture design are addressed. These are (a) design for a sequence of operations and (b) design with tolerance considerations. Tolerance and process specifications are obtained from the user during an interactive session. A knowledge-based design system, REFIX, then designs a fixture for the workpiece. The fixture is optimized for a particular datum specification and sequence of operations. It is then analyzed and presented via the CAD system. REFIX is automated to minimize user-induced errors.

Design and Implementation of a Prototype ‘Intelligent’ CAD System

1989 ◽  
Vol 111 (2) ◽  
pp. 252-258 ◽  
Author(s):  
M. J. Jakiela ◽  
P. Y. Papalambros
Keyword(s):  
Computer Aided Design ◽  
Design System ◽  
Production Rules ◽  
Automated Assembly ◽  
Knowledge Domains ◽  
Cad System ◽  
Design And Implementation ◽  
Knowledge Based ◽  
System Requirements ◽  
Aided Design

System requirements and system design for integrating a production rule program and a computer aided design system are presented. An implementation using a commercially available graphics modeling system is described. A “suggestive mode” interface is programmed as an example with application to design for automated assembly. Initial use of the implementation indicates that encoding production rules is more difficult than with conventional text-only knowledge-based system, but that this system is a more effective way to use artificial intelligence techniques in design. The system is intended for use with knowledge domains that are not well represented by usual analytical means.

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