Aircraft Wing Systems Module Bracket Attachment
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Solution Overview
Problem
Existing aircraft wing construction methods require sequential construction of structural and systems elements, making the process time-consuming and necessitate breaking the fuel tank seal for system removal, which is complex and undesirable.
Innovation Solution
Aircraft wing structure with a spar and releasable systems modules secured to brackets, allowing parallel construction and easy removal without breaking the fuel tank seal, using brackets that can be fastened or bonded to the spar.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If individual systems components are equipped to the wing structure after construction of structural elements, then the wing structure can be built first, but the systems installation becomes time-consuming and removal requires breaking the fuel tank seal
Solution Approach 1:
The wing assembly process is segmented into independent parallel tracks: structural elements (wing box, spar) are constructed separately while systems modules are pre-assembled separately, then both are integrated through brackets that attach to the spar. This segmentation allows simultaneous construction without sequential dependencies.
Solution Approach 2:
Brackets serve as intermediary components that connect systems modules to the spar structure. These brackets provide standardized attachment points that enable quick connection and disconnection of systems modules without requiring access to the fuel tank interior or complex disassembly procedures.
2Reliability
If systems are installed requiring fuel tank seal breaking for removal, then systems can be securely mounted, but removal becomes complex and time-consuming
Solution Approach 1:
The bracket acts as an intermediary attachment mechanism between the systems module and the spar. It provides secure mounting through robust connection to the structural spar while enabling easy removal from the exterior without compromising the fuel tank seal integrity.
Solution Approach 2:
The removal procedure extracts only the necessary action (unscrewing bracket fasteners from the exterior) while leaving the fuel tank seal intact. The bracket design allows the systems module to be extracted from the wing assembly without requiring extraction or damage to the fuel tank seal.
Data Source
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AI summary
An aircraft wing structure (100) comprising a spar (101) and a systems module (200) is disclosed. The systems module (200) is releasably secured to a plurality of brackets (300) on a first side of the spar (101) and the second, opposite side of the spar is configured to define a wall of a fuel tank of an aircraft wing. The systems module (200) is releasably secured to at least one bracket (300) of the plurality of brackets (300) by a fastener (207) comprising a bolt (211) and a barrel nut (209). The barrel nut (209) is configured to engage with a part of the bracket (300) to prevent rotation of the barrel nut (209) when rotating the bolt (211) within the barrel nut (209) to tighten or untighten the fastener (207). Methods of installing and removing the systems module are also described.