Composite Pin Connection for Aircraft Insulation Heat Resistance
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Solution Overview
Problem
Connection elements made of plastic fail to meet the high requirements of heat resistance in aircraft construction, as they melt or burn when subjected to extreme temperatures, thereby losing their functionality.
Innovation Solution
A connection arrangement featuring a metal skeleton coated with plastic for pins and retaining disks, which maintains the integrity of the connection between superimposed material layers even when the plastic coating is destroyed by heat, ensuring the metal skeleton continues to hold the layers in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If plastic connection elements are used, then ease of manufacture and weight are improved, but heat resistance deteriorates
Solution Approach 1:
The connection element comprises a plastic body with an integrated metal skeleton embedded within it. The metal skeleton provides heat resistance and structural strength, while the plastic body provides ease of manufacture and weight reduction. This composite structure resolves the contradiction by combining materials with complementary properties.
2Weight of moving object
If plastic connection elements are used, then weight is reduced, but reliability under extreme heat deteriorates
Solution Approach 1:
The metal skeleton embedded in the plastic body provides structural integrity and heat resistance, ensuring reliability under extreme conditions. The plastic body maintains low weight. Together, they achieve both weight reduction and reliable performance in high-temperature environments.
3Temperature
If metal connection elements are used, then heat resistance is improved, but weight increases
Solution Approach 1:
Instead of using solid metal connection elements, the invention uses a metal skeleton with reduced cross-section embedded in plastic. This provides sufficient heat resistance and structural strength while minimizing weight, resolving the contradiction between heat resistance and weight.
4Ease of operation
If plastic connection elements are used, then ease of operation is improved, but functionality under extreme heat deteriorates
Solution Approach 1:
The plastic body maintains ease of operation and installation, while the embedded metal skeleton ensures functionality and structural integrity under extreme heat. The combination allows the connection element to be easy to use while maintaining reliability in high-temperature environments.
Data Source
AI summary
In aircraft construction, connection elements for connecting layers of insulating material onto walls are subject to special requirements for ease of installation, weight considerations, and resistance to heat. The invention provides a connection arrangement, in particular for superimposed layers of material, whose function is not impaired under extreme heat. The connection arrangement is comprised by a pin with a head or head arrangement, engaging positions, and a retaining element. The pin, the head or the head arrangement, and retaining element are made up of a skeleton and an outer material where the skeleton is made of a material more resistant to heat than the outer material. Following destruction or removal of the outer material by heat, the remaining skeleton parts of the pin, head part, and retaining element maintain their connections and structure keeping the layers of material in place.