Mesh Generation Method for Welding Deformation Analysis based on Lightweight Model

被引：0

作者：

Park J.G. ^{[1
]}

Choi D.J. ^{[1
]}

Kwon K.Y. ^{[2
]}

机构：

[1] Production Technology Research Center, Samsung Heavy Industries Co., Ltd.

[2] School of Industrial Engineering, Kumoh Nat’l Institute of Technology

来源：

Transactions of the Korean Institute of Electrical Engineers | 2022年 / 71卷 / 05期

关键词：

Lightweight Model; Mesh Generation; Welding Deformation;

D O I：

10.5370/KIEE.2022.71.5.700

中图分类号：

学科分类号：

摘要：

In ships and offshore plants, lightweight models are widely used for all processes, including design, procurement, construction, and operation. These models are mainly composed of triangular elements, thus minimizing the file size and increasing the visibility. The welding process is the most time-consuming and expensive process in the ship and plant construction. During this process, welding deformation causes dimensional quality problems. A finite element analysis (FEA) is widely used to prevent these problems. In this paper, we propose a mesh generation method to estimate welding deformation based on a lightweight model. The lightweight model has no information about the welding line because this model is only used for visualization purposes. Boundary curves are restored from the triangle elements. If a boundary curve lies on another face, it is classified as a welding line. Then, a trimmed polygon surface is created including welding lines, and a quadrilateral mesh is generated using the domain decomposition method. This proposed method was tested on several models to demonstrate the feasibility. © 2022 The Korean Society of Mechanical Engineers

引用

页码：451 / 459

页数：8

共 17 条

[1]

Song I. H., Chung S. C., Data Format and Browser of Lightweight CAD Files for Dimensional Verification over the Internet, Journal of Mechanical Science and Technology, 23, 5, pp. 1278-1288, (2009)

[2]

Cheon S. U., Lee J. H., Park K. P., Suh H. W., Requirement Analysis on Lightweight CAD Models in Ship PLM Environment and Its Application Examples, Transactions of the Society of CAD/CAM Engineers, 18, 4, pp. 299-307, (2013)

[3]

Kwon K. Y., Design Point Generation Method from a Lightweight Model for Dimensional Quality Management in Shipbuilding, Journal of Ship Production and Design, 35, 4, pp. 353-363, (2019)

[4]

Kwon K. Y., Welding Length Estimation based on Lightweight Model for Construction of Offshore Structures, Trans. Korean Soc. Mech. Eng. A, 43, 2, pp. 111-118, (2019)

[5]

Heo H., Chung H., Stochastic Assessment Considering Process Variation for Impact of Welding Shrinkage on Cost of Ship Production, International Journal of Production Research, 52, 20, pp. 6076-6091, (2014)

[6]

Park J. G, Cho S. M, Heo H. Y., Yi M. S, Jang T. W., Kim Y. G., Development of Automatic Re-Design System based on Shipbuilding CAD System, Proc. of the Society of CAD/CAM Conference, pp. 489-491, (2013)

[7]

Ha Y.S., Analytical Methodology Obtaining an Optimal Welding Sequence for Least Distortion of Welded Structure, Journal of KWJS, 31, 3, pp. 54-59, (2013)

[8]

Kwon K. Y., Mun D., Part Recognition-based Simplification of Triangular Mesh Models for Ships and Plants, The International Journal of Advanced Manufacturing Technology, 105, pp. 1329-1342, (2019)

[9]

Bechet E., Cuilliere J. C., Trochu F., Generation of a Finite Element MESH from Stereolithography (STL) Files, Computer-Aided Design, 34, 1, pp. 1-17, (2002)

[10]

Di Angelo L., Di Stefano P., Giaccari L., A New Mesh-Growing Algorithm for Fast Surface Reconstruction, Computer-Aided Design, 43, 6, pp. 639-650, (2011)

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