Aircraft Windshield Mineral Ply Coating for Direct Bolting
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Solution Overview
Problem
Existing aircraft windshields with structural plies made of mineral materials require complex flange assemblies, limiting flexibility in assembly types and increasing complexity.
Innovation Solution
Aircraft windshields with at least one inner ply made of mineral material coated with a viscoelastic transparent organic material, allowing for enhanced structural reinforcement, improved seal-tightness, and flexible assembly options, including direct bolting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a flange assembly is used to fix mineral material plies, then the structural strength is improved, but the device complexity increases
Solution Approach 1:
The patent extracts the flange element from the assembly, eliminating the need for separate flange components. The mineral material ply itself is shaped with an integrated flange-like peripheral portion that directly engages with the framework, simplifying the assembly structure while maintaining structural strength.
Solution Approach 2:
The patent merges the flange function with the mineral material ply by creating an integrated structure where the peripheral portion of the ply serves both as the structural element and the mounting flange. This combination eliminates separate components and reduces assembly complexity.
2Strength
If a flange assembly is used to fix mineral material plies, then the structural strength is improved, but the ease of manufacture decreases
Solution Approach 1:
The patent removes the separate flange component from the manufacturing process. The peripheral portion is formed as an integral part of the mineral material ply through a single molding operation, eliminating the need for separate flange manufacturing and assembly steps.
Solution Approach 2:
The patent performs the flange formation action during the initial molding of the mineral material ply. The peripheral portion is pre-formed with the correct geometry for direct bolting attachment before the assembly stage, simplifying the overall manufacturing process.
3Ease of manufacture
If direct bolting is used to fix organic material plies, then the ease of manufacture is improved, but the structural strength decreases
Solution Approach 1:
The patent applies different material properties to different regions of the windshield assembly. The peripheral portion uses mineral material with high strength and rigidity for direct bolting attachment, while the central transparent area uses organic material for optical clarity and impact resistance.
Solution Approach 2:
The patent creates a composite structure combining mineral material (for strength and rigidity in the peripheral portion) with organic material (for transparency and impact resistance in the central area). This composite approach allows direct bolting while maintaining overall structural strength.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The coating layer provides structural reinforcement, enhances seal-tightness, and allows for more flexible assembly options, such as direct bolting, reducing assembly complexity and increasing the durability of the windshield.
Implementation Method 1
at least one of the plies of the window made of mineral material is/are coated with a coating layer of viscoelastic transparent organic material
Implementation Method 2
The coating of plies made of mineral material of a window by a layer of viscoelastic material makes it possible to protect them by reinforcing their solidity. Moreover, the coating layer is used to enhance the seal-tightness and facilitate the assembly
Data Source
AI summary
A windshield architecture with window including at least one ply of material that is transparent and of mineral origin and having a peripheral edge. At least one of the mineral material plies of the window is coated with a coating layer of viscoelastic transparent organic material over an entire surface of the play, including the peripheral edge.