Fiber Deposition Head Kinematics for 240° Angular Coverage
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Solution Overview
Problem
Existing fiber deposition devices for producing large aircraft components, such as fuselage sections, require multiple panels due to limitations in angular coverage, leading to increased costs, weight, and manufacturing time, particularly when trying to achieve a significant angular sector like 240°.
Innovation Solution
A fiber deposition device with enhanced kinematics, including a third rotation axis parallel to the axis of revolution, allows for the production of panels with circular cross-sections spanning a 240° angular sector by positioning the deposition head with a first translation along the axis of revolution, a second translation to approach the support, a first rotation around a combined axis, and a second rotation around a perpendicular axis, along with a third rotation around a third axis, reducing the need for multiple panels and minimizing weight and bulk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional deposition device with limited angular coverage is used, then the device structure remains simple, but multiple panels are required increasing cost, weight, and manufacturing time
Solution Approach 1:
The patent applies dynamics by introducing a third rotary axis that enables the deposition head to dynamically adjust its position and orientation. This dynamic capability allows the single panel to cover a 240° angular sector by rotating the deposition head around the axis of revolution, eliminating the need for multiple static panels while maintaining manufacturing efficiency.
Solution Approach 2:
The patent introduces another dimension by adding a third rotation axis parallel to the first direction (axis of revolution). This additional degree of freedom enables the deposition head to sweep through a 240° angular sector, transforming the deposition process from covering limited angular sectors with multiple panels to continuously covering a large sector with a single panel.
2Adaptability or versatility
If an additional rotary axis is added to the deposition device, then angular coverage increases, but the weight and bulk of the Cartesian structure increase
Solution Approach 1:
The third rotary axis introduces dynamic positioning capability that enables the deposition head to adapt to various angular positions. This dynamic adjustment allows the system to cover a 240° sector without requiring multiple heavy panel assemblies, thereby reducing overall device weight while maintaining high adaptability.
Solution Approach 2:
The deposition head with the third rotation axis becomes a universal component capable of depositing fibers across a 240° angular sector. This multi-functional capability replaces the need for multiple specialized panel assemblies, reducing the total weight of the system while maintaining versatility in covering different angular ranges.
3Adaptability or versatility
If the support is made to pivot, then angular coverage is achieved, but the support interferes with the deposition device
Solution Approach 1:
Instead of making the support pivot (which would cause interference), the patent makes the deposition head dynamic by adding a third rotation axis. This allows the deposition head to move independently to cover the 240° sector, avoiding any interference between the support and deposition device while achieving the required angular coverage.
Solution Approach 2:
Instead of moving the support to achieve angular coverage (which causes interference), the patent inverts the approach by moving the deposition head. The deposition head rotates around the axis of revolution to cover the angular sector, while the support remains stationary, thereby avoiding interference between the two components.
Data Source
AI summary
A device for deposition of fibers on a support (30) for producing a panel with an axis of revolution, includes a deposition head (32) and elements for positioning the deposition head relative to the support (30), with the positioning elements of the deposition head having kinematics including a first translation in a first direction (X) that is parallel to the axis of revolution, a second translation in a second direction (W) making it possible to come more or less close to the head of the support, a first rotation (C) around a first rotary axis combined with the second direction (W), and a second rotation (B) around a second rotary axis that is perpendicular to the first and second directions, wherein the kinematics of the positioning elements of the head include a third rotation (A) around a third axis of rotation that is parallel to the first direction (X).