A concurrent engineering-oriented design database representation model

Xue, Deyi; Yang, Haoguang

doi:10.1016/j.cad.2003.09.013

Cited by 45 publications

(25 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The design database representation scheme introduced in our previous research [1] is employed in this work to model design descriptions in one world. In this scheme, design descriptions are modeled at three different levels: meta-class level, class level, and instance level, as shown in Fig.…”

Section: A Design Database Representation Schemementioning

confidence: 99%

“…In our previous research, a design database representation scheme was introduced for modeling design objects developed at different design stages by integrating geometric descriptions and non-geometric descriptions into the same environment [1]. This scheme was developed based on the research results achieved by the Design Repository Project at the National Institute of Standards and Technology (NIST) [2] and the Design Database Modeling Project at the University of Calgary [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…Each world models the design descriptions created at a certain design stage. The database representation scheme introduced in our previous research [1] is employed in this work to model the design descriptions developed at different design stages.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design Process Modeling for the Future Cad Systems

Xue¹,

Yang²,

Tu³

2011

PCEEA

Self Cite

View full text Add to dashboard Cite

show abstract

Section: A Design Database Representation Schemementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design Process Modeling for the Future Cad Systems

Xue¹,

Yang²,

Tu³

2011

PCEEA

Self Cite

View full text Add to dashboard Cite

show abstract

“…Brunetti and Golob [3] developed a representation scheme connecting the conceptual design and the detailed design phases. Xue and Yang [24] proposed an information structure to support concurrent design. Different product information entities, such as functions, geometry and machining processes, were included into a single product realization process graph.…”

Section: Literature Reviewmentioning

confidence: 99%

Knowledge-Based Reasoning in a Unified Feature Modeling Scheme

Chen

Thimm

et al. 2005

Computer-Aided Design and Applications

View full text Add to dashboard Cite

Feature-based modeling is an accepted approach to include high-level geometric information in product models as well as to facilitate a parameterized and constraint-based product development process. Moreover, features are suitable as an intermediate layer between a product's knowledge model and its geometry model for effective and efficient information management. To achieve this, traditional feature technology must be extended to align with the approach of knowledge-based reasoning. In this paper, based on a previously proposed unified feature modeling scheme, feature definitions are extended to support knowledge-based reasoning. In addition, a communication mechanism between the knowledge-based system and the feature model is established. The methods to embed and use knowledge for information consistency control are described.Keywords: Unified feature; Knowledge-based reasoning; Feature-based modeling INTRODUCTIONHistorically, computer-aided tools, such as CAD, CAPP and CAM systems are developed to support the corresponding product lifecycle phases. Product geometry takes up a significant position in these systems. Feature technology is mainly used to provide high-level geometric representations to facilitate parameterized and constraint-based product geometric design process. However, traditional CAD systems usually assume that a designer has already finished the conceptual design as well as the concept-to-geometry mapping [17]. Therefore, only geometric modeling functions are provided in these CAD systems. Due to this limitation, some information, such as the design intent and the process patterns, is lost during the design process. Explicitly embedding knowledge-based reasoning processes within the traditional engineering systems can significantly enhance the systems' reusability, scalability and flexibility. Knowledge-oriented techniques can support more complex tasks with natural human-oriented intelligent processes. They are more acceptable by human-beings than dataoriented techniques. They can also represent and deal with inaccurate and incomplete information as well as rule-ofthumbs, which are usually difficult to be described mathematically. Due to the different natures between the knowledge information entities and the geometric entities, to interface the knowledge-based reasoning processes with the geometric modeling processes, an intermediate information layer is necessary. Feature-based technology can provide such a bridge. However, the current feature modeling technology has to be extended in two directions. First, feature definitions need to be extended to support knowledge-based reasoning processes. The purpose of this extension are checking and maintaining feature validity in the view of design intent. In other words, each feature model should be consistent to its specific knowledge bases. Second, the communication mechanism between the knowledge bases and the feature models must be established. This paper is intended to address the key issues for enabling knowledge-based reasoning in...

show abstract

“…On the one hand, to realize the overall required product functions, many aspects need to be considered, such as the spatial, stability, and esthetic concerns in building design (Rosenman and Gero 1996). On the other hand, to fulfill product life cycle requirements, downstream stages, such as machining and assembly for mechanical products, need to be considered in the early stages, such as conceptual design, to optimize the product and its related processes (Xue et al 1999;Xue and Yang 2004;Roucoules et al 2003;Feng and Song 2000). These publications reveal the complexity of the inherent relations across product life cycle stages.…”

mentioning

confidence: 99%

Paradigm shift: unified and associative feature-based concurrent and collaborative engineering

Chen

Thimm

2008

J Intell Manuf

View full text Add to dashboard Cite

With widely used concurrent and collaborative engineering technologies, the validity and consistency of product information become important. In order to establish the state of the art, this paper reviews emerging concurrent and collaborative engineering approaches and emphasizes on the integration of different application systems across product life cycle management (PLM) stages. It is revealed that checking product information validity is difficult for the current computer-aided systems because engineering intent is at best partially represented in product models. It is also not easy to maintain the consistency among related product models because information associations are not established. The purpose of this review is to identify and analyze research issues with respect to information integration and sharing for future concurrent and collaborative engineering. A new paradigm of research from the angle of feature unification and association for product modeling and manufacturing is subsequently proposed.Keywords Concurrent and collaborative engineering · Feature-based design and manufacturing · Product life cycle modeling · Information validity and consistency

show abstract

A concurrent engineering-oriented design database representation model

Cited by 45 publications

References 13 publications

Design Process Modeling for the Future Cad Systems

Design Process Modeling for the Future Cad Systems

Knowledge-Based Reasoning in a Unified Feature Modeling Scheme

Paradigm shift: unified and associative feature-based concurrent and collaborative engineering

Contact Info

Product

Resources

About