Internet-based DFX for rapid and economical tool/mould making

Xie, Sheng Quan; Tu, Pei-Yun; Zhou, Zude

doi:10.1007/s00170-003-1658-2

Cited by 8 publications

(3 citation statements)

References 13 publications

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“…Luo, Zhang, Zhou, and Zhou (1998) proposed a STEP-based injection mould model in an integrated environment. Xie, Tu, and Zhou (2004) proposed a STEP-based generic DFX (Design for X) model for rapid mould making. Deng, Britton, Lam, Tor, and Ma (2002) proposed a featurebased CAD/computer-aided engineering (CAE) integration model for injection moulded product design.…”

Section: Product Modeling For Injection Moulding Productsmentioning

confidence: 99%

A STEP‐based Generic Product Modeling Architecture for collaborative injection moulding product development

Zhou

Liu

et al. 2010

Hum Ftrs & Erg Mfg Svc

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A STEP (STandard for Exchange of Product model data)-based Generic Product Modeling Architecture (GPMA) for efficient information sharing and exchange in support of collaborative injection moulding product development, is proposed in this article. The architecture consists of four functional components: an EXPRESS Data Model (EDM), a STEP-based modeling environment, a five-phase modeling method, and three EDM data exchange and sharing methods. The focus of this article is on the modeling methodologies and the definition of schemas for modeling all the important information during the life cycle of injection moulding product development. The information structure is well defined in EXPRESS language, which allows the creation of user-defined data types and the definition of more complex entities for injection moulding products. Because the proposed GPMA is based on STEP, it can provide standardized mechanisms for representing and exchanging product model data, is extendable, and is adaptable. A prototype system named the World Wide Web-based Product Information Sharing System was developed based on the proposed GPMA. The system is then applied to a Chinese injection moulding enterprise to support the collaborative product development of a new product, and the results validated the feasibility of the proposed GPMA. C 2010 Wiley Periodicals, Inc.

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Section: Product Modeling For Injection Moulding Productsmentioning

confidence: 99%

A STEP‐based Generic Product Modeling Architecture for collaborative injection moulding product development

Zhou

Liu

et al. 2010

Hum Ftrs & Erg Mfg Svc

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“…In the latter case, expert knowledge from downstream stages of the product life cycle could be reused to diagnose and remedy issues in earlier stages. Some applications for such knowledge are in manufacturability (Venkatachalam et al, 1993), life cycle assessment (Park & Seo, 2003), and tool making (Xi et al, 2004). Systems for representing and applying this knowledge have long since existed (e.g., Liu et al, 1995; Pokojski, 2006; Hoque & Szecsi, 2007).…”

Section: Introductionmentioning

confidence: 99%

Discourse analysis based segregation of relevant document segments for knowledge acquisition

Madhusudanan

Chakrabarti

Gurumoorthy

2016

AIEDAM

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Documents are a useful source of expert knowledge in organizations and can be used to foresee, in an earlier stage of a product's life cycle, potential issues and solutions that might occur in later stages of its life cycle. In this research, these stages are, respectively, design and assembly. Even if these documents are available online, it is rather difficult for users to access the knowledge contained in these documents. It is therefore desirable to automatically extract the knowledge contained in these documents and store them in a computer accessible or manipulable form. This paper describes an approach for the first step in this acquisition process: automatically identifying segments of documents that are relevant to aircraft assembly, so that they can be further processed for acquiring expert knowledge. Such identification of relevant segments is necessary for avoiding processing of unrelated information that is costly and possibly distracting for domain relevance. The approach to extracting relevant segments has two steps. The first step is the identification of sentences that form a coherent segment of text, within which the topic does not shift. The second step is to classify segments that are within the topics of interest for knowledge acquisition, that is, aircraft assembly in this instance. These steps filter out segments that are unrelated, and therefore need not be processed for subsequent knowledge acquisition. The steps are implemented by understanding the contents of documents. Using methods of discourse analysis, in particular, discourse representation theory, a list of discourse entities is obtained. The difference in discourse entities between sentences is used to distinguish between segments. The list of discourse entities in a segment is compared against a domain ontology for classification. The implementation and results of validation on sample texts for these steps are described.

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“…DFX tool is built on a set of knowledge-based rules which come from each stage of the product lifecycle. In addition, designers create expertise and knowledge on a daily basis, which can be reused to improve the DFX process [2,9,10]. The need to share that information led to the separate development of Product Data Management (PDM) systems and Expert Systems.…”

Section: Introductionmentioning

confidence: 99%

Methodology to Support a Collaborative DFX Process with Integration of PDM and Expert System Tools

Ramón-Raygoza¹,

Guerra-Zubiaga

Tomovic

2008

AMR

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Designers need to reuse relevant knowledge types to make important decisions. These decisions are based not only on experience, but also on key knowledge global partners. A methodology to support information-knowledge management for global collaboration using DFX, PDM and Expert System tools is proposed. This new approach shows a manner to provide information from each stage of the product lifecycle to the designers through a PDM system. In addition, it includes a manner to store and share the knowledge created during the DFX process using an Expert System. This methodology provides integration to product realization technologies while supporting design stage in a collaborative environment when a large amount of information and knowledge to get a decision is required. The new approach implemented provides important benefits such as launching time and cost reduction, increased efficiency of designers and product innovation.

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Internet-based DFX for rapid and economical tool/mould making

Cited by 8 publications

References 13 publications

A STEP‐based Generic Product Modeling Architecture for collaborative injection moulding product development

A STEP‐based Generic Product Modeling Architecture for collaborative injection moulding product development

Discourse analysis based segregation of relevant document segments for knowledge acquisition

Methodology to Support a Collaborative DFX Process with Integration of PDM and Expert System Tools

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