Design of a composite truncated elliptical rotary shell based on variable-angle trajectories

Lu, Jiuru; Xu, Helan; Jiang, Zhenhua; Li, Kangmei; Hu, Jun

doi:10.1016/j.compstruct.2022.115772

Cited by 3 publications

(3 citation statements)

References 27 publications

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“…Excessive geodesic curvature and normal curvature can lead to undesirable consequences, such as excessive transverse bending deformation and longitudinal bending deformation. 29 To mitigate these issues that might arise during practical manufacturing, an in-depth analysis of the fiber path's curvature characteristics is conducted.…”

Section: Simulation Analysis Of Curvature Characteristicsmentioning

confidence: 99%

“…Based on the Section 2.2, this study thoroughly examines the curvature and slippage coefficient for various polar hole radii and ellipsoidal rates while considering the parameter

u_{1}

. Excessive geodesic curvature and normal curvature can lead to undesirable consequences, such as excessive transverse bending deformation and longitudinal bending deformation 29 . To mitigate these issues that might arise during practical manufacturing, an in‐depth analysis of the fiber path's curvature characteristics is conducted.…”

Section: Simulation Analysismentioning

confidence: 99%

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Design method of variable slippage coefficient non‐geodesic filament‐wound composite pressure vessels

Wang,

Xu,

Song

et al. 2024

Polymer Composites

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Previous studies on the design methods of filament winding paths for composite pressure vessels have mainly focused on geodesic and constant slippage coefficient non‐geodesic patterns, neglecting the design of variable slippage coefficients along the fiber path. In this paper, a design method of variable slippage coefficient non‐geodesic filament wound composite pressure vessels is proposed. The study begins by establishing a meridian rotation mapping model and deriving fiber path equations on the shell surface. Subsequently, the fiber paths, curvature characteristics, slippage coefficients, and shell stress responses of the shell under variable geometrical parameters are simulated and analyzed. Next, the winding parameters are optimized while considering bandwidth and stable winding constraints. The optimal winding parameters are determined, and filament winding simulations are conducted on composite pressure vessels. Results demonstrate the feasibility of the proposed method for variable slippage coefficient fiber path winding mode, providing a new and effective filament winding path design approach for composite pressure vessels.Highlights Establishment of meridian rotation mapping model and simulation of shell fiber paths under variable geometric parameters. The fiber paths, curvature characteristics, slippage coefficients, and winding angles of the shell under variable geometrical parameters are simulated and analyzed. Stress response analysis of shells based on Tsai‐Wu failure criterion and classical lamination theory stress field dimensionless modeling. Construction of winding parameter optimization strategies and bandwidth error evaluation based on stable winding and fiber bandwidth constraints. Simulation of variable slippage coefficient non‐geodesic filament winding for composite pressure vessels with different parameters.

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Section: Simulation Analysis Of Curvature Characteristicsmentioning

confidence: 99%

“…Based on the Section 2.2, this study thoroughly examines the curvature and slippage coefficient for various polar hole radii and ellipsoidal rates while considering the parameter

u_{1}

Section: Simulation Analysismentioning

confidence: 99%

Design method of variable slippage coefficient non‐geodesic filament‐wound composite pressure vessels

Wang,

Xu,

Song

et al. 2024

Polymer Composites

Self Cite

View full text Add to dashboard Cite

show abstract

“…Fiber-reinforced composites have excellent properties such as high specific strength, high specific stiffness, good toughness and easy customization, outstanding advantages such as structural-functional integration and design-manufacturing integration, and easy forming into large components, which have wide applications in aerospace, high-speed rail transportation, wind power generation and other industrial fields. 1 The use of carbon fiber prepregs has been steadily increasing in recent years to save energy consumption, for example, the latest Boeing 787 Dreamliner uses more than 50% of composite materials in its structural components.…”

mentioning

confidence: 99%

Discrete path planning of carbon fiber patch placement with complex surface

Zhang

Chi

2023

Textile Research Journal

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At present, carbon fiber automatic placement technology is mainly applicable to the preform of large and complex components, while the preform of small size and large curvature carbon fiber components mainly relies on manual placement, which has the problems of high labor cost, slow speed, and low repeatability. In order to realize the automatic placement of carbon fiber components with large curvature and small size, this article adopts the carbon fiber patch placement method to make the preforms. By combining the surface subdivision method and the finite element optimization method of carbon fiber patch placement angle, a discrete path planning method of robotic carbon fiber patch is proposed. This method divides the complex surface into surface fragments with similar curvature and normal angle, which can effectively reduce the wrinkles in the process of carbon fiber patch placement and improve the utilization of carbon fiber patch. At the same time, the stiffness optimization design of carbon fiber patch composite preforming is realized by combining the finite element optimization method of placement angle. The helmet surface was selected as the research object of carbon fiber placement path planning, and the path planning of helmet surface placement was carried out, and the simulation tests of helmet placement in different regions and overall placement were compared. It was found that the stiffness of carbon fiber patches placed in different regions of the helmet surface was better than that of the overall placement.

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Efficient meta-modeling of a carbon fiber reinforced plastic double roller using a sample iteration-error treatment neural network

Ahn

Kim

Lee

et al. 2023

Composite Structures

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Design of a composite truncated elliptical rotary shell based on variable-angle trajectories

Cited by 3 publications

References 27 publications

Design method of variable slippage coefficient non‐geodesic filament‐wound composite pressure vessels

Design method of variable slippage coefficient non‐geodesic filament‐wound composite pressure vessels

Discrete path planning of carbon fiber patch placement with complex surface

Efficient meta-modeling of a carbon fiber reinforced plastic double roller using a sample iteration-error treatment neural network

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