2013 Fiscal Year Final Research Report
Modeling of Curling of Plain-Knitted Fabrics toward Its Suppression
| Project/Area Number |
24656169
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Intelligent mechanics/Mechanical systems
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| Research Institution | Osaka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KURASHIKI Tetsusei 大阪大学, 工学研究科, 准教授 (30294028)
INOUE Mari 神戸大学, 人間発達環境学研究科, 教授 (20294184)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 編み物構造 / カーリング / 線状物体 / シミュレーション |
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| Research Abstract |
Curling is a phenomenon that edges of a plain-knitted fabric are curled and it prevents efficient sewing of the fabric. As quantitative relationship between the magnitude of curling and properties of a yarn and/or knitting parameters is unclear, analysis of curling has been required. First, a knitted stitch in a plain-knitted fabric is modeled based on the differential geometry and the variational principle of statics. Then, curling is regarded as deformation of the stitch to reduce its potential energy. Next, curling of the whole fabric in 2D space is modeled considering the gravitational effect. Finally, it is shown that the difference of the curled shape of the fabric due to the difference of the rigidity of the fabric can be simulated. We will be able to estimate curling of a fabric from properties of a yarn and knitting parameters without actually knitting. It will lead to suppression of curling by controlling such properties/parameters.
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