Pressure based approach for Automated Fiber Placement (AFP) with sensor based feedback loop and flexible component in the effector

Ojeda, Itzel de Jesus Gonzalez; Patrouix, Olivier; Aoustin, Yannick

doi:10.1016/j.ifacol.2017.08.511

Cited by 9 publications

(2 citation statements)

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“…The semi-axes a, b, and the maximum pressure p 0 is calculated as follows [28] (p. 36): (10) in which e is the eccentricity of the contact area, K(e) is the complete elliptic integral of the first kind, E(e) is the complete elliptic integral of the second kind, and E * is the equivalent modulus:…”

Section: Assessment Of the Simulation Model Using Hertz Theorymentioning

confidence: 99%

“…Several researchers have analyzed the effect of the roller on pressure distribution and sought to improve layup quality. For example, Gonzalez Ojeda et al [10] established a mapping relationship between force, contact area, and pressure through FE simulation for automated fiber placement (AFP). Cheng et al [11] studied the contact characteristics of the roller and the morphological change in the prepreg under the roller during composite automated placement.…”

Section: Introductionmentioning

confidence: 99%

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The Optimal Design of the Press Roller to Improve the Winding Molding Quality of Heat Insulation

Zhang,

Hou,

et al. 2024

Materials

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In the heat insulation winding molding process of solid rocket motors, the pressure applied by the press roller directly affects the quality of the winding molding. Insufficient pressure can result in poor bonding quality and may cause defects. This paper aims to provide an optimal design of the press roller to improve the winding molding quality of the heat insulation. The effect of the cylindrical press roller on the pressure distribution was analyzed using the elastic foundation model and a finite element (FE) model, which was assessed by Hertz theory. Subsequently, the press roller was optimized to an elliptical concave design. The effect of the radius of the elliptical concave press roller on the pressure distribution was analyzed. A comparison of the effect of the elliptical concave press roller and the cylindrical press roller on the pressure distribution was conducted using the FE model. The results show pressure uniformity is significantly improved when the elliptical concave press roller is employed on the mandrel with the smallest radius. Additionally, the elliptical concave press roller increases the pressure at the edge of the tape, which reduces the risk of lifted edges and, thereby, improves the winding molding quality of the heat insulation.

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Section: Assessment Of the Simulation Model Using Hertz Theorymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%