Aircraft Cabin Partition Structure With Integrated Crew Seats
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Solution Overview
Problem
Existing partition and seating arrangements in aircraft cabins are not optimally integrated, leading to inefficiencies in weight, material usage, and structural integrity, particularly in single-aisle aircraft where space is limited and weight is a concern, with cabin crew seats often being separately manufactured and attached with minimal reinforcement, failing to withstand high loads during crashes.
Innovation Solution
A synergistic design approach integrates the partition wall and seating structure as a single, load-path-optimized, monolithic aluminum construction, where the wall and seat structures are formed as a single piece, with ribs and fasteners designed to efficiently transfer loads, eliminating the need for additional fastening elements and optimizing material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If partition and seating arrangements are separately manufactured and attached, then ease of manufacture is improved, but weight and structural integrity deteriorate
Solution Approach 1:
The partition structure and seating arrangement are merged into a single integrated load-bearing structure. The seat frames are formed as integral parts of the partition wall structure, eliminating separate manufacturing and attachment processes. This integration reduces the total weight by removing redundant fasteners, mounting brackets, and interface materials while maintaining structural functionality.
2Device complexity
If separate manufacturing is used, then device complexity is reduced, but structural integrity under crash loads deteriorates
Solution Approach 1:
The partition and seating structures are combined into a monolithic load-bearing assembly that acts as a unified structural unit during crash events. The integrated design ensures continuous load paths from the seats through the partition structure to the aircraft fuselage, eliminating weak interfaces that would exist in separately attached configurations.
3Ease of manufacture
If separate attachment with minimal reinforcement is used, then ease of manufacture is improved, but reliability under high loads deteriorates
Solution Approach 1:
The seating arrangement and partition structure are merged into an integrated load-bearing system where the seat frames are formed as integral parts of the partition wall. This eliminates the need for separate attachment fasteners and minimal reinforcement, creating a reliable unified structure that maintains integrity under high crash loads while simplifying the manufacturing process.
4Weight of moving object
If integration is implemented, then weight and structural efficiency are improved, but manufacturing complexity increases
Solution Approach 1:
The integrated partition-seating structure is designed with modular seat assemblies that can be segmented and positioned within the partition framework. This segmentation allows for standardized manufacturing of repeatable components while maintaining the overall integrated load-bearing structure, reducing the complexity of manufacturing highly integrated assemblies.
Data Source
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AI summary
A support structure (28) for a partition assembly (20) for a cabin (4) of a passenger aircraft (2), wherein the partition assembly (20) comprises a partition (14) and a seat assembly (16) with at least one cabin crew seat (18a,b) attached to the partition (14) in an assembly state (M), includes a mechanically supportive wall structure (22) for the partition (14), a mechanically supportive seat structure (24) for the seat assembly (16), and at least one fastening means (26) for fastening the wall structure (22) and the seat structure (24) to one another in the assembly state (M). The partition assembly (20) with partition (14) and seat assembly (16) includes the support structure (28). In a method for manufacturing the support structure (28) or the partition assembly (20), the wall structure (22), or at least a main component thereof, is manufactured as a milled part by milling a solid material plate (62).In a design process, the entire supporting structure (28) is subjected to load path optimization in the assembly state (M).