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Received: 2006-03-20

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Journal of Zhejiang University SCIENCE A 2006 Vol.7 No.9 P.1530-1534

http://doi.org/10.1631/jzus.2006.A1530


Parametric design of a part with free-form surfaces


Author(s):  KIM Yeoung-il, KIM Li-ra, JUN Cha-soo

Affiliation(s):  Reseach Institute for CAD/CAM, CITEK System, Changwon 641-845, Korea; more

Corresponding email(s):   zero1.kim@citek.co.kr, csjun@gsnu.ac.kr

Key Words:  Parametric modelling, Free-form surface, Solid model, Drawing


KIM Yeoung-il, KIM Li-ra, JUN Cha-soo. Parametric design of a part with free-form surfaces[J]. Journal of Zhejiang University Science A, 2006, 7(9): 1530-1534.

@article{title="Parametric design of a part with free-form surfaces",
author="KIM Yeoung-il, KIM Li-ra, JUN Cha-soo",
journal="Journal of Zhejiang University Science A",
volume="7",
number="9",
pages="1530-1534",
year="2006",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2006.A1530"
}

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%T Parametric design of a part with free-form surfaces
%A KIM Yeoung-il
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%A JUN Cha-soo
%J Journal of Zhejiang University SCIENCE A
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%D 2006
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2006.A1530

TY - JOUR
T1 - Parametric design of a part with free-form surfaces
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A1 - KIM Li-ra
A1 - JUN Cha-soo
J0 - Journal of Zhejiang University Science A
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SP - 1530
EP - 1534
%@ 1673-565X
Y1 - 2006
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2006.A1530


Abstract: 
3D solid models for parts with regular-form surfaces (PRFSs) are effectively generated using traditional parametric design techniques. A new model is obtained by changing some parameters defining the model. The parts with free-form surfaces (PFFSs), however, cannot be defined by several parameters. Usually they are defined by some geometric elements like profile curves. The traditional parametric design approaches have not easily dealt with the PFFSs. A method for generating a solid model and an engineering drawing for PFFSs is proposed in this paper: First, the new profiles are generated from input point data. Second, the profile information is extracted from the existing model. Last, the old profiles are replaced with the new profiles. This method can preserve the associative information of the existing model and automatically generate the drawing including views, dimensions, and annotations. The proposed method has been implemented using a commercial CAD/CAM system, Unigraphics, and API functions written in C-language, and were applied to the blades of a turbine generator. Some illustrative examples are provided in order to show the effectiveness of the proposed method.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Chang, G.S., Hwnang, J.S., Cheon, S.U., 2006. Automatic Generation of Parametric Models. Proceedings of the Korean Society of CAD/CAM, p.567-575.

[2] Chen, K.Z., Feng, X.A., Ding, L., 2002. Intelligent approaches for generating assembly drawings from 3D computer models of mechanical products. Computer-Aided Design, 34(5):347-355.

[3] Ke, Y.L., Fan, S.Q., Zhu, W.D., Li, A., Lie, F.S., Shi, X.Q., 2006. Feature-based reverse modeling strategies. Computer-Aided Design, 38(5):485-506.

[4] Kim, T.K., Byun, M.H., 1998. A study on the freeform surface generation using parametric method. Journal of the Korean Society of CAD/CAM, 3(4):293-303.

[5] Park, S.B., 1997. An Application on the Mould of Air Intake Hose Product by Using 3D Parametric Modeling Techniques. Proceedings of the Korean Society of CAD/CAM, p.194-200.

[6] Piegl, L., Tiller, W., 1997. The NURBS Book (2nd Ed.). Springer-Verlag, Berlin.

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