B-Rep model simplification by automatic fillet/round suppressing for efficient automatic feature recognition

Zhu, Hao; Menq, Chia-Hsiang

doi:10.1016/s0010-4485(01)00056-2

Cited by 90 publications

(44 citation statements)

References 22 publications

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“…There are dimension reduction methods (Rezayat, 1998;Donaghy et al, 2000;Sheen et al, 2010), which reduce the dimension of a shape, and feature removal methods (Venkataraman et al, 2002;Zhu and Menq, 2002;Sun et al, 2009), which remove the small or unnecessary features of a shape. In dimension reduction methods, thin-walled solids are converted into faces by extracting the mid-surfaces, and long cylindrical solids are converted into edges.…”

Section: Related Workmentioning

confidence: 99%

CAD model simplification using feature simplifications

Yoon

Kim²

2016

JAMDSM

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Section: Related Workmentioning

confidence: 99%

CAD model simplification using feature simplifications

Yoon

Kim²

2016

JAMDSM

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“…Zhu H. pre-processed the input B-Rep models by suppressing fillets and rounds before the feature recognition. Thus the input BRep models can be simplified without altering the major shapes of primary features [7]. Atul Thakur summarized various model simplification techniques available that are applicable for physics-based simulation applications and presented a broad selection criterion for different classes of engineering problems commonly encountered in practice [8].…”

Section: Current Cad Model Simplificationmentioning

confidence: 99%

A Synchronous CAD/CAE Modeling Method and Applications in Parametric Parts Library

Pan¹,

Wang²,

Teng³

et al. 2015

TOMEJ

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Current parametric parts library cannot contribute to the reuse of finite element model. It is essential to remodel or exchange model for parts in CAE software. This paper presents a synchronous CAD/CAE modeling method, which can be employed in parts library based on Siemens NX software. Primary CAD and CAE information in part are merged into master model, which acts as cornerstone for solid model, FE model and simulation model. Thus, part models from parts library can be directly used into simulation analysis, and parametric amendment and change propagation is sustained. A software package developed for designers is helpful to search and achieve desired part from parts library. Three case studies are carried out to clarify synchronous CAD/CAE modeling process and change propagation procedure.

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“…Automatic blend features removal, and more precisely finding sequences of blend features in an initial shape, are relevant to FE preprocessing. Regarding blends removal, Zhu and Menq [23] and Venkataraman [22] detect and classify fillet/round features in order to create a suppression order and remove them from a CAD model. In FEM, automatic decomposition of mechanical parts into hex meshable sub-regions create positive feature decompositions.…”

Section: Prior Workmentioning

confidence: 99%

Idealized Models for FEA Derived from Generative Modeling Processes Based on Extrusion Primitives

Boussuge

Léon

Hahmann

et al. 2014

Proceedings of the 22nd International Meshing Roundtable

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Abstract. Shape idealization transformations are very common when adapting a CAD component to FEA requirements. Here, an idealization approach is proposed that is based on generative shape processes used to decompose an initial B-Rep object, i.e. extrusion processes. The corresponding primitives form the basis of candidate sub domains for idealization and their connections conveyed through the generative processes they belong to, bring robustness to set up the appropriate connections between idealized sub domains. Taking advantage of an existing construction tree as available in a CAD software does not help much because it may be complicated to use it for idealization processes. Using generative processes attached to an object that are no longer reduced to a single construction tree but to a graph containing all non trivial construction trees, is more useful for the engineer to evaluate variants of idealization. From this automated decomposition, each primitive is analyzed to define whether it can idealized or not. Subsequently, geometric interfaces between primitives are taken into account to determine more precisely the idealizable sub domains and their contours when primitives are incrementally merged to come back to the initial object.

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B-Rep model simplification by automatic fillet/round suppressing for efficient automatic feature recognition

Cited by 90 publications

References 22 publications

CAD model simplification using feature simplifications

CAD model simplification using feature simplifications

A Synchronous CAD/CAE Modeling Method and Applications in Parametric Parts Library

Idealized Models for FEA Derived from Generative Modeling Processes Based on Extrusion Primitives

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