Definition and recognition of rib features in aircraft structural part

Li, Yingguang; Wang, Wei; Liu, Xu; Ma, Yongsheng

doi:10.1080/0951192x.2013.799784

Cited by 26 publications

(9 citation statements)

References 43 publications

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“…Among them, 'n' sub-ribs can form a complete rib. To compare the computational efficiency of the proposed method, the typical rib recognition method [25] is used here. It can be seen from Fig.…”

Section: Illustration Of the Efficiency Of Rib Recognition Methodsmentioning

confidence: 99%

“…Later approaches are all following this theory. Li et al [24,25] utilized the seed face as a key to the recognition of rib-features, and then improved this method in which the rib feature was considered to be an object that had some particular attributes. It can be seen that these feature recognition methods are all based on heuristic rules which first recognize the sub-ribs and then combined to form a main rib-feature.…”

Section: Related Workmentioning

confidence: 99%

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Automatic hierarchical mid-surface abstraction of thin-walled model based on rib decomposition

Zhu

Shao

Liu

et al. 2016

Advances in Engineering Software

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Model simplification is imperative in the process of Computer aided design (CAD) and Computer aided engineering (CAE) integration. Mid-surface abstraction is the most effective method to simplify the thin-walled models. Many previous research efforts have been focused on the mid-surface abstraction, including the model decomposition based methods, Medial Axis Transform (MAT) based methods and Chordal Axis Transform (CAT) based methods. However, complex thin-walled models cannot be handled well due to the fact that there are some problems including low geometrical precision, poor topological structure, etc., in the above resultant mid-surface models. Especially, these methods are hard to be reused to generate the mid-surface model efficiently. Therefore, a hierarchical semantic mid-surface abstraction method is proposed for the thin-walled model based on rib feature decomposition in this paper. Firstly, a new hierarchical semantic structure is defined and applied on both the thin-walled models and mid-surface models. After that, the model decomposition is conducted based on the identified rib features and the hierarchical semantic information is obtained at the same time. Then, the offset operation and discretization based methods are used to obtain the mid-surface patch for each sub region with different semantic structure respectively. Finally, the mid-surface model with hierarchical semantic information is generated by stitching all discrete patches. Moreover, the above model can be reused to facilitate the rapid mid-surface abstraction of the changed model based on its hierarchical semantic structure. Several examples are given to demonstrate the outperformance of the proposed method.2 reduction [1]. Many previous research efforts have been focused on this field, which can be broadly divided into three categories: the Medial Axis Transformation (MAT) based methods, model decomposition based methods and the Chordal Axis Transformation (CAT) based methods. Some research results have been applied in the business software, like NX UGS or CATIA. However, there are still some deficiencies in dealing with the mid-surface abstraction of complex thin-walled models, such as the generation efficiency, geometric accuracy, topology effectiveness, applicability and reusability of the mid-surface model. Based on the analysis of previous methods, the thin-walled models are mostly handled from a macro perspective without making use of the above-mentioned characteristics of thin-walled models. In this study, an automated hierarchical mid-surface abstraction method is proposed based on rib decomposition. Here, the connection semantics and the hierarchical semantics of thin-walled models is utilized to overcome the above-mentioned deficiencies.The remainder of this paper is organized as follows. Section 2 discusses the related work. Section 3 describes the research motivation and method overview. Then the definition of hierarchical structure is given in Section 4. The rib feature recognition and a new model decomposition method b...

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Section: Illustration Of the Efficiency Of Rib Recognition Methodsmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Automatic hierarchical mid-surface abstraction of thin-walled model based on rib decomposition

Zhu

Shao

Liu

et al. 2016

Advances in Engineering Software

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“…In dealing with dynamic information such as on-line machine tool performance and in-process inspection of machined parts related to machine tool maintenance, Li et al [40,41] reported pioneering investigation and experimental work in on-line monitoring and inspection system based on a new dynamic feature concept (as opposed to traditional static geometry-based feature definition) for modelling the dynamic real-life information to achieve timely and responsive machining control. In their dynamic feature model, the relationships between the interim states of a part (workpiece-in-progress) and associated machining characteristics and knowledge have been investigated and dynamic information linked to different interim features have been modelled and integrated.…”

Section: Dynamics Of Knowledgementioning

confidence: 99%

An overview of knowledge sharing in new product development

Gao

Bernard

2017

Int J Adv Manuf Technol

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This paper provides an overview of some of the issues in knowledge management related to the sharing of knowledge in new product development. Previous research and concepts reported by international researchers and examples of the research projects carried out by the authors will be introduced. The paper first provides an overview of the history and importance of innovation and challenges in manufacturing. Then, the importance of new product development in the sustainable success of manufacturing enterprises in the globalised business operations is discussed. The formalisation and modelling of product development processes will also be introduced. The concept and different definitions of knowledge management by previous researchers are then introduced, with further discussion on knowledge sharing. At this point, the authors' research in knowledge sharing is also introduced. Finally, the trend of using social media and Enterprise 2 technologies in knowledge management and sharing is introduced using the recent research projects of the authors as examples.

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“…The on-line monitoring of machine tool performance and in-process inspection of machined parts should be linked to machine tool maintenance as well, especially. Li et al [16,17] reported an integrated on-line monitoring and inspection system based on an innovative dynamic feature concept as the basis for modelling dynamic production information to achieve accurate machining process control. In their dynamic feature model, the various relationships between the interim geometry of a part and associated machining characteristics have been investigated and dynamic information linked to different interim feature states have been represented.…”

Section: Previous Research In Computerised Maintenance Managementmentioning

confidence: 99%

Process and knowledge management in a collaborative maintenance planning system for high value machine tools

Wan

Gao

et al. 2017

Computers in Industry

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Product manufacturers are extending their responsibilities in the whole life cycle by providing services to their customers. In recent years, product service system has become an important research topic to address the special requirements in the new service driven business model. High value machine tools in modern manufacturing factories are special products: they are regarded as 'products' from maintenance point of view, and they also manufacture other products. In the new business model, the quality and behavior of a machine tool not only affect the quality of the parts it manufactures, but also affect the profits of the machine tool's manufacturer. However, in the research area of product service systems and related computerized maintenance systems, there is a lack of investigation into the special nature, problems and requirements of high value machine tool maintenance, which are very important in modern digitized manufacturing systems. Therefore, this research investigated the various relationships between different stakeholders in the machine tools' lifecycle, focusing on knowledge management, communication and the decision-making processes. This research also explored the potential application of advanced content management systems, which are widely implemented in the financial, business and government organizations, in the manufacturing engineering domain which has been dominated by traditional engineering information systems. A prototype collaborative maintenance planning system is proposed, developed and evaluated using an example machine tool, which indicated that significant improvement could be achieved and the content management technology has a number of advantages over the traditional engineering information systems, such as computer aided engineering, product data and lifecycle management, and enterprise resource planning systems, in managing machine tool maintenance and service information including dynamic and unstructured knowledge.

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Definition and recognition of rib features in aircraft structural part

Cited by 26 publications

References 43 publications

Automatic hierarchical mid-surface abstraction of thin-walled model based on rib decomposition

Automatic hierarchical mid-surface abstraction of thin-walled model based on rib decomposition

An overview of knowledge sharing in new product development

Process and knowledge management in a collaborative maintenance planning system for high value machine tools

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