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Research Papers

Design Patterns of Soft Products Using Surface Flattening

[+] Author and Article Information
Dongliang Zhang

International Design Institute,
Zhejiang University,
Hangzhou 310058, China
e-mail: dzhang@zju.edu.cn

Jituo Li

Mechanical Engineering Department,
Zhejiang University,
Hangzhou 310027, China
e-mail: jituo_li@zju.edu.cn

Jin Wang

State Key Laboratory of Fluid Power and
Mechatronic Systems,
Zhejiang University,
Hangzhou 310027, China
e-mail: dwjcom@zju.edu.cn

1Corresponding author.

Contributed by the Computers and Information Division of ASME for publication in the JOURNAL OF COMPUTING AND INFORMATION SCIENCE IN ENGINEERING. Manuscript received April 24, 2017; final manuscript received February 8, 2018; published online April 26, 2018. Assoc. Editor: Yan Wang.

J. Comput. Inf. Sci. Eng 18(2), 021011 (Apr 26, 2018) (8 pages) Paper No: JCISE-17-1084; doi: 10.1115/1.4039476 History: Received April 24, 2017; Revised February 08, 2018

In this paper, we present a pattern development method for soft product design. We utilize a surface fattening method based on a mass-spring model to create 2D patterns unfolding from a three-dimensional (3D) model. Multilevel meshes are proposed to expedite the flattening process, and a boundary optimization method is employed to guarantee 2D patterns can be sewn well. We apply the proposed method to the design of real soft products. Experimental results show that it can deal with complex surfaces efficiently and robustly, and manufactured products are satisfactory.

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References

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Figures

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Fig. 2

Process of flattening using multilevel meshes

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Fig. 3

Edge collapse: (a) 3D shape and (b) unfolded shape

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Fig. 7

Examples of surface flattening: (a) freeform surface, (b) car shell, (c) metal sheet, and (d) half sphere

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Fig. 8

Comparison of flattening a half sphere using different methods: (a) half sphere, (b) MLF, (c) BF, and (d) HLSCM

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Fig. 9

Two examples of plush toys: (a) 3D toy model with seaming lines, (b) 2D patterns, (c) produced plush toy, (d) 3D toy model with seaming lines, (e) 2D patterns, and (f) produced plush toy

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Fig. 10

An example of garment design (only main patterns are displayed)

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Fig. 11

An example of sofa design

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Fig. 4

Sewing relation of 2D patterns: (a) 3D model and (b) 2D patterns and sewing relation

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Fig. 5

Create a polygon from a 2D pattern: (a) 2D pattern and (b) 2D polygon

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Fig. 6

Compute optimal boundary

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