A feature-based approach towards an integrated product model including conceptual design information

Brunetti, Gino; Golob, Borut

doi:10.1016/s0010-4485(00)00076-2

Cited by 138 publications

(73 citation statements)

References 9 publications

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“…In addition, non-geometric relations also exist between features and non-geometric entities. For example, at the design stage, functional-form matrixes, bipartite function-feature graphs, design flow chains, design key characteristics, and mapping hierarchies can be used to link abstracted concept features to product functions (Feng et al 1996;Mukherjee and Liu 1997;Whitney et al 1999;Brunetti and Golob 2000;Brunetti and Grimm 2005). At the process planning stage, machining features are also related to non-geometric entities, such as machines, cutting tools, and machining processes (Khoshnevis et al 1999;Sormaz and Khoshnevis 2003).…”

Section: Relations In a Feature-based Application Modelmentioning

confidence: 99%

“…Therefore, during transformation along engineering processes, engineering intent is not maintained and very often lost in downstream processes. Thirdly, non-geometric Schulte et al 1993;Feng et al 1996;Anderl and Mendgen 1996;Mukherjee and Liu 1997;Whitney et al 1999;Khoshnevis et al 1999;Stage et al 1999;Brunetti and Golob 2000;Park 2003 constraints specified among features are satisfied. For example, different machining sequences may influence the presence, shape, volume, and validity of machining features (Regli and Pratt 1996;Faheem et al 1998;Sharma and Hayes 2001).…”

Section: Using Features To Maintain a Product Model's Validitymentioning

confidence: 99%

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

Chen

Thimm

2008

J Intell Manuf

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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

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Section: Relations In a Feature-based Application Modelmentioning

confidence: 99%

Section: Using Features To Maintain a Product Model's Validitymentioning

confidence: 99%

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

Chen

Thimm

2008

J Intell Manuf

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“…A further limitation is that the geometric nature of a feature requires the product design to have reached a stage of maturity (typically detail design) for the technique to be successfully deployed, thus limiting their use to later life cycle domains. In other cases where features have been used during the concept (pre-geometry) stage, the definition of a feature has shifted to that of a carrier of information relative to a life cycle phase, rather than the traditional form feature view (Brunetti andGolob 2002, Bronsvoort andNoort 2004). Therefore, in developing information systems to share manufacturing and design knowledge for re-use, the preferred approach is to create knowledge models to structure and represent knowledge and information to be shared, in the form of a product model and in cases of manufacturing knowledge, an additional process model.…”

Section: Knowledge Managementmentioning

confidence: 99%

A knowledge system to support manufacturing knowledge during preliminary design

Mountney

Gao

Wiseall

2007

International Journal of Production Research

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“…Although no implementation detail about this intermediate stage was given, they proposed several important ideas for the integration of conceptual design and detailed design, such as the existence of generic ontologies between these two phases, common-function-based association among different geometric entities and the possible mapping from the abstract functional requirements to the physical geometric constraints. 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.…”

Section: Literature Reviewmentioning

confidence: 99%

Knowledge-Based Reasoning in a Unified Feature Modeling Scheme

Chen

Thimm

et al. 2005

Computer-Aided Design and Applications

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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...

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A feature-based approach towards an integrated product model including conceptual design information

Cited by 138 publications

References 9 publications

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

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

A knowledge system to support manufacturing knowledge during preliminary design

Knowledge-Based Reasoning in a Unified Feature Modeling Scheme

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