A feature-based approach towards an integrated product model in intelligent design

2013 ◽  
Vol 69 (1-4) ◽  
pp. 15-30 ◽  
Author(s):  
Bin He ◽  
Wei Song ◽  
Yangang Wang
Keyword(s):  
Intelligent Design ◽  
Product Model ◽  
Feature Based

Geometric Reasoning Based on Graph Grammar Parsing

1994 ◽  
Vol 116 (3) ◽  
pp. 763-769 ◽  
Author(s):  
Z. Fu ◽  
A. de Pennington
Keyword(s):  
Intelligent Design ◽  
Feature Recognition ◽  
Geometric Reasoning ◽  
Geometric Constraints ◽  
Graph Grammar ◽  
Feature Interaction ◽  
Knowledge Based ◽  
Feature Based ◽  
Feature Information ◽  
And Performance

It has been recognized that future intelligent design support environments need to reason about the geometry of products and to evaluate product functionality and performance against given constraints. A first step towards this goal is to provide a more robust information model which directly relates to design functionality or manufacturing characteristics, on which reasoning can be carried out. This has motivated research on feature-based modelling and reasoning. In this paper, an approach is presented to geometric reasoning based on graph grammar parsing. Our approach is presented to geometric reasoning based on graph grammar parsing. Our work combines methodologies from both design by features and feature recognition. A graph grammar is used to represent and manipulate features and geometric constraints. Geometric constraints are used within symbolical definitions of features constraints. Geometric constraints are used within symbolical definitions of features and also to define relative position and orientation of features. The graph grammar parsing is incorporated with knowledge-based inference to derive feature information and propagate constraints. This approach can be used for the transformation of feature information and to deal with feature interaction.

Modeling of Feature-Based Design Process

1998 ◽  
Author(s):  
Fei Gao ◽  
Dieter Roller
Keyword(s):  
Design Process ◽  
Data Exchange ◽  
Concurrent Design ◽  
Product Model ◽  
Product Data ◽  
Product Models ◽  
Critical Issues ◽  
Feature Based ◽  
Feature Based Design ◽  
Feature Evolution

Abstract Capturing design process is becoming an important topic of feature-based modeling, as well as in product data exchange, concurrent design, and cooperative design. Three critical issues on the modeling of design process are considered in this paper, namely, feature concepts, feature evolution, and the semantic consistencies of the states of product models. A semantics-based product model is introduced to facilitate the description of both conceptual and detailed models, and to maintain the semantic consistencies of product states. The process is represented by feature states and their evolution records. Feature type variation and prototype-based design are proposed to support feature evolution. A conceptual description of the design process and an example are given.

scholarly journals Feature-based translation of CAD models with macro-parametric approach: issues of feature mapping, persistent naming, and constraint translation

2020 ◽  
Vol 7 (5) ◽  
pp. 603-614 ◽  
Author(s):  
Mutahar Safdar ◽  
Tahir Abbas Jauhar ◽  
Youngki Kim ◽  
Hanra Lee ◽  
Chiho Noh ◽  
...  
Keyword(s):  
Computer Aided Design ◽  
Parametric Approach ◽  
Model Data ◽  
Feature Mapping ◽  
Product Model ◽  
Cad Systems ◽  
Cad System ◽  
Cad Models ◽  
Feature Based ◽  
Aided Design

Abstract Feature-based translation of computer-aided design (CAD) models allows designers to preserve the modeling history as a series of modeling operations. Modeling operations or features contain information that is required to modify CAD models to create different variants. Conventional formats, including the standard for the exchange of product model data or the initial graphics exchange specification, cannot preserve design intent and only geometric models can be exchanged. As a result, it is not possible to modify these models after their exchange. Macro-parametric approach (MPA) is a method for exchanging feature-based CAD models among heterogeneous CAD systems. TransCAD, a CAD system for inter-CAD translation, is based on this approach. Translators based on MPA were implemented and tested for exchange between two commercial CAD systems. The issues found during the test rallies are reported and analyzed in this work. MPA can be further extended to remaining features and constraints for exchange between commercial CAD systems.

Integrated Process Planning Based on 3D Product Models

2009 ◽  
Vol 407-408 ◽  
pp. 298-302 ◽  
Author(s):  
Li Hong Qiao ◽  
Jin Zhang
Keyword(s):  
Process Planning ◽  
Group Technology ◽  
Product Information ◽  
Information Source ◽  
Planning System ◽  
Integrated Process ◽  
Product Model ◽  
Application Systems ◽  
Product Models ◽  
Feature Based

One of the major barriers to the integration of CAD, CAPP and CAM is insufficiency and incompatibility of product model data among various application systems. This paper presented an effective approach to achieve integrated process planning with CAD and CAM under a product data management environment based on 3D product models. The system architecture and the processes of an integrated process planning system (3D-IPP) were constructed using feature information and specific CAD/CAPP/CAM integration technologies based on feature. A feature-based product information model is designed as the information source for the 3D-IPP. A feature-based integrated process planning method was developed based on group technology, intelligent decision-making algorithms and parametric operation templates in numerically controlled (NC) programming. The procedures of intelligent process route planning and parametric NC operation planning were addressed. The 3D-IPP system and its implementation provide an effective solution to strive for complete information sharing among application systems of CAD, CAPP and CAM.

A Feature-Based Product Model for Valve Blocks

1998 ◽  
Author(s):  
Lin Xie ◽  
M. M. F. Yuen
Keyword(s):  
Product Model ◽  
Feature Based

A Feature-Based Approach to Embedded System Hardware and Software Co-Design

2005 ◽  
Author(s):  
Xuan F. Zha ◽  
Steven J. Fenves ◽  
Ram D. Sriram
Keyword(s):  
Embedded System ◽  
Unified Modeling Language ◽  
Feature Model ◽  
Extended Model ◽  
Product Model ◽  
Unified Modeling ◽  
Language Representation ◽  
Feature Based ◽  
The Embedded System ◽  
Adaptable Components

An embedded system is a hybrid of hardware and software that combines software flexibility and hardware real-time performance. The co-design of hardware and software is the most critical but difficult issue in embedded system design. In this paper, we propose a novel feature-based approach to the co-design of hardware (HW) and software (SW) in embedded systems. The approach first defines an extension to the NIST Core Product Model and then provides an object-oriented UML (Unified Modeling Language) representation for the embedded system feature model, including models of embedded system artifacts, components, features, and HW/SW configuration/assembly. The extended model provides a feature-based HW/SW component co-design framework allowing the designer to develop a virtual embedded system prototype through assembling virtual components. The resulting feature-based model serves as the basis for developing reusable and adaptable components/artifacts. The underlying SW and HW components are determined through feature configuration, and thus HW/SW co-design is implemented by using feature-component mapping and component generation, which may be associated with feature creation, configuration, analysis and reuse. A case study example is discussed to illustrate the embedded system model.

Continuous Computation in Apparatus Engineering

2002 ◽  
Author(s):  
Simon Pilhar ◽  
Klaus Strohmeier ◽  
Manfred Zirkel ◽  
Sandor Vajna
Keyword(s):  
Data Model ◽  
Routine Activities ◽  
Computer Support ◽  
The Other ◽  
Entire System ◽  
Product Model ◽  
Cad Systems ◽  
Computer Aided ◽  
Feature Based ◽  
The One

Within the scope of this lecture, the results of a teamwork project of the co-operating institutes are to be presented. The aim of the project is the optimization of the apparatus design by the development of an integrated computer support on the basis of a feature-based product model for apparatus engineering. For this reason the optimization on the one hand consists in the development of a computer-aided method for apparatus engineering and the corresponding tools and on the other hand, in the integration of the partial solutions into the commercial CAD systems AutoCAD and SolidEDGE. Due to the division into application and data model, the system can easily be adapted to user specific requirements without the need of programming the entire system again. With the aid of this system, the apparatus designer can be freed from routine activities and is able to dedicate more time for design according to safety precautions and load requirements.

A Graph Based Heuristic Approach to Automated Assembly Planning

1994 ◽  
Author(s):  
Xue Yan ◽  
P. Gu
Keyword(s):  
Automatic Generation ◽  
Heuristic Approach ◽  
Assembly Sequence Planning ◽  
Robotic Assembly ◽  
Assembly Planning ◽  
Assembly Sequence ◽  
Product Model ◽  
Disassembly Sequence ◽  
Feature Based ◽  
Product Assembly

Abstract Automatic generation of product assembly sequence is essential for robotic assembly task planning. In this paper, a graph-based heuristic approach is presented for assembly sequence planning. A product is represented in feature-based product model. A liaison graph is then formed based on assembly relations among components. The liaison graph is split into two or more pieces by removing the cutvertex from the graph. The pieces may also be split again until basic graph(bi-connected graph) are found. The basic graphs are considered as sub-assemblies. The disassembly sequence for each sub-assembly is determined. The disassembly sequences are then merged to generate a complete disassembly sequence for the product. Finally, the assembly sequence is defined by reversing the complete disassembly sequence.

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