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Automatic small blend recognition from B-rep models for analysis

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Abstract

The recognition and suppression of small features from B-rep models play an important role in effectively generating the qualified mesh for analysis. This paper presents a new algorithm for recognizing small blends automatically for the purpose of mesh generation. The algorithm first transforms the input B-rep model into an aggregation of faces. Then, each face is judged to be a blend or not based on matching conditions. At last, the blends with larger physical sizes than a threshold value are excluded. The innovations lie in the recognition conditions and the unique calculating procedure of the blend physical size. Several examples are given to demonstrate the validity and applicability of the algorithm.

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Acknowledgment

The authors wish to express their gratitude towards the financial support from Dalian Science & Technology Bureau (No. 2006J22JH007). The content of this paper is patent pending.

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Authors and Affiliations

  1. School of Information Science and Engineering, Dalian Polytechnic University, 116034, Dalian, People’s Republic of China

    Jiping Li

  2. Department of Mechanical Sciences and Engineering, Tokyo Institute of Technology, Tokyo, 152-8552, Japan

    Gang Tong & Ichiro Hagiwara

  3. School of Mechanical Engineering and Automation, Dalian Polytechnic University, 116034, Dalian, People’s Republic of China

    Dianbo Shi, Meng Geng & Huawei Zhu

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  1. Jiping Li
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  2. Gang Tong
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  3. Dianbo Shi
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  4. Meng Geng
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  5. Huawei Zhu
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  6. Ichiro Hagiwara
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Correspondence to Jiping Li.

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Li, J., Tong, G., Shi, D. et al. Automatic small blend recognition from B-rep models for analysis. Engineering with Computers 25, 279–285 (2009). https://doi.org/10.1007/s00366-009-0127-4

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  • DOI: https://doi.org/10.1007/s00366-009-0127-4

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