Circular braiding take-up speed generation using inverse kinematics

Ravenhorst, J.H. van; Akkerman, Remko

doi:10.1016/j.compositesa.2014.04.020

Cited by 56 publications

(43 citation statements)

References 17 publications

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“…Under the assumptions given in Section 2.1, a single interlacement point a for one warp and one weft yarn is analyzed. thereby reducing the convergence zone length, matching earlier statements [1,7,10,11]. Hence, the convergence zone length is bounded from both below at infinite friction and from above at zero friction.…”

Section: Single Interlacement Pointsupporting

confidence: 85%

“…In [1], a braid was manufactured on a machine controlled with instructions that were generated using a model that neglects yarn interaction. This resulted in deviations up to 10 degrees from the required braid angle.…”

Section: Problem and Objectivementioning

confidence: 99%

“…The 'inverse solution', where the desired braid angle distribution is input, the machine speeds are output, and the yarn interaction is taken into account, has not been published to the knowledge of the authors. In [1], the inverse solution was obtained using inverse kinematics, neglecting yarn interaction. This model outputs the braiding machine take-up speed profile, given the mandrel geometry and a constant carrier rotation speed as input.…”

Section: Csmentioning

confidence: 99%

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A yarn interaction model for circular braiding

Ravenhorst

Akkerman

2016

Composites Part A: Applied Science and Manufacturing

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Machine control data for the automation of the circular braiding process has been generated using previously published mathematical models that neglect yarn interaction. This resulted in a significant deviation from the required braid angle at mandrel cross-sectional changes, likely caused by an incorrect convergence zone length, in turn caused by this neglect. Therefore the objective is to use a new model that includes the yarn interaction, assuming an axisymmetrical biaxial process with a cylindrical mandrel and Coulomb friction. Experimental validation with carbon yarns and a 144 carrier machine confirms a convergence zone length decrease of 25% with respect to a model without yarn interaction for the case analyzed, matching the model prediction using a coefficient of friction of around 0.3.

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Section: Single Interlacement Pointsupporting

confidence: 85%

Section: Problem and Objectivementioning

confidence: 99%

Section: Csmentioning

confidence: 99%

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A yarn interaction model for circular braiding

Ravenhorst

Akkerman

2016

Composites Part A: Applied Science and Manufacturing

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“…12, the results of the sensor are in range of AE180 , while values of the determined braiding angle in the simulation are per definition between 0 6 a 6 90 due to the arcuscosinus function in the vector dot product (Eq. (15)). Therefore, the sensor data is adapted as follows:…”

Section: Results Validationmentioning

confidence: 93%

“…Furthermore, the model is limited to biaxial braids. This work is extended by van Ravenhorst et al [15] to an inverse approach that calculates the path and velocity of a complex mandrel shape through the guide ring. The model is extended to triaxial braids, but limitations mentioned beforehand still exist.…”

Section: Literature Reviewmentioning

confidence: 98%

Finite element simulation of the braiding process for arbitrary mandrel shapes

Hans

Cichosz

Brand

et al. 2015

Composites Part A: Applied Science and Manufacturing

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High‐fidelity modeling of the braiding process for generating the realistic mesostructure of preforms in braided composites

Yan

et al. 2023

Polymer Composites

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An accurate method for modeling the braided preforms is vital for the mesoscopic performance analysis of tubular composites. This study proposed a high‐fidelity virtual braiding model for the general braiding process, which further considers the fiber‐level deformation of the yarns during the braiding process to generate the realistic mesostructure of preforms in tubular composites. The method uses the digital element approach previously proposed for weaving processes to model the braiding yarn. The whole braiding process, including the deposition zone and convergence zone, is incorporated into the model to account for the effect of interaction in these zones on the preform mesostructure. Two braiding processes were simulated with the proposed virtual braiding method. The simulated geometry of the braided preforms and the yarn paths in the convergence zone agree well with the reported experimental results. To facilitate the performance analysis of braided composite structures, further automated generation of solid cell instances based on the obtained braided preforms was studied. Importantly, this work could reduce the considerable effort required for characterizing the mesostructure via the costly micro‐CT scans for braided composites, and the generated geometry of the braided preform is more precise than the widely used highly idealized models.

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Circular braiding take-up speed generation using inverse kinematics

Cited by 56 publications

References 17 publications

A yarn interaction model for circular braiding

A yarn interaction model for circular braiding

Finite element simulation of the braiding process for arbitrary mandrel shapes

High‐fidelity modeling of the braiding process for generating the realistic mesostructure of preforms in braided composites

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