3-D dynamic simulation of knitwear based on the hybrid model

Sha, Sha; Wei, Wantong; Xiao, Biao; Sha, Di; Gao, Yuan; Cao, Ruiqi; Jiang, Xuewei; Deng, Zhongliang; Tao, Hui; Hu, Xinrong; Li, Bin; Yuan, Xiying

doi:10.1177/15589250211051589

Cited by 2 publications

(4 citation statements)

References 34 publications

(37 reference statements)

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“…As shown in Figure 5, masses on the same knitting row are mainly subjected to the forces F 1 from the left connecting mass and F 2 from the right connecting mass. The forces are the transverse structural spring forces, and the force calculation is shown in equation (9). Where, M j k , yarn is the coordinate of the current mass, M j k…”

Section: Force Analysis and Calculation Of Massesmentioning

confidence: 99%

“…Textile digital technology provides a feasible solution to this difficulty. 9,10 Based on three-dimensional (3D) computer-aided design (CAD) software, 11,12 cutting-edge simulation technology can be used to achieve virtual and realistic visualization of textile fabrics. Regarding complex knitted structures, it is necessary to develop more targeted simulation techniques and methods.…”

Section: Introductionmentioning

confidence: 99%

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Yarn-level deformation for weft-knitted stitches

Zheng,

Jiang,

Peng

et al. 2023

Journal of Engineered Fibers and Fabrics

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The essential purpose of this research is to exploit and innovate a yarn-level relaxation deformation method for weft-knitted stitches. Each loop formed by knitting yarns was taken as a mass respectively. Spring-mass model at the yarn level was established for several knitting rows and spatial coordinates were assigned to each mass. Based on the intermeshed relationship of loops in the longitudinal direction, the spring-mass model at the yarn level was transformed into a two-layer spring-mass model at the stitch level, with correspondence between the masses of the two models. Each mass was subjected to eight spring forces from different directions. The resultant force was calculated based on the yarn-level mass model, and the mass displacement was solved by the Verlet numerical integration method. According to the coordinates of masses, the geometric models of different knitting types were established, and a matrix operation method for the spatial rotation and translation of control points was proposed, which could quickly calculate the coordinates and accurately simulate the shape of loops. Finally, we simulated the relaxation deformation of five typical weft-knitted stitches. The results show that this method can accurately and effectively simulate the overall deformation effect of the knitted stitches, and the simulation results are similar to the actual results. The analysis results of the pattern size and the simulation efficiency indicate that the larger the pattern, the more loops there are, the overall simulation time is longer and the running memory occupied is larger.

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Section: Force Analysis and Calculation Of Massesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Yarn-level deformation for weft-knitted stitches

Zheng,

Jiang,

Peng

et al. 2023

Journal of Engineered Fibers and Fabrics

View full text Add to dashboard Cite

show abstract

“…5 However, the fully formed process is complex and requires a great deal of time to simulate. Sha et al 6 used the discretized Newton's method to analyze the gap between the dynamic knitwear-human body and the knitwear model, and then the knitwear model was further divided into different regions. Sperl et al 7 proposed a method to animate the yarn-level cloth geometry on top of an underlying deforming mesh in a mechanicsaware fashion.…”

mentioning

confidence: 99%

“…Sha et al. 6 used the discretized Newton’s method to analyze the gap between the dynamic knitwear–human body and the knitwear model, and then the knitwear model was further divided into different regions. Sperl et al.…”

mentioning

confidence: 99%

Fast three-dimensional simulation based on data constraints and methods to improve the realism of knitted sweaters

Li,

Cong

2023

Textile Research Journal

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The purpose of this research is to use the methods of data constraints for parametric design and three-dimensional simulation of knitted sweaters to achieve the purpose of enhancing the simulation effect. First, based on the basic plates of knitted sweaters as a reference, the parameters of the curve parts of the plates were constrained, and the constraint relationships were applied to build the parametric design models. After entering the user parameters, the changed plates can be obtained. On this basis, the transformation of flat plates to three-dimensional surfaces was carried out. The triangular grid mapping relationships between two-dimensional plates and three-dimensional surfaces were constructed, and the physical properties were further specified for the mesh particles. When the surface texture parameters of the two-dimensional plane are designed, the three-dimensional surface will change accordingly. In addition, this research put forward the stitching and matching methods of the seams of knitted sweaters. The joint size was equally divided, and the number of coils was converted into the number of triangular mesh. Point-to-point mesh was used to realize the accurate counterpoint fusion of coils. The feasibility of parametric and virtual design methods was verified by taking an example, which provides ideas for the computer-aided design of knitted sweaters and promotes the improvement of production efficiency without wasting raw materials.

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3-D dynamic simulation of knitwear based on the hybrid model

Cited by 2 publications

References 34 publications

Yarn-level deformation for weft-knitted stitches

Yarn-level deformation for weft-knitted stitches

Fast three-dimensional simulation based on data constraints and methods to improve the realism of knitted sweaters

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