Aircraft Reactor Mast Assembly With Redundant Wing Force Paths
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Solution Overview
Problem
Current aircraft propulsion system installations face challenges in efficiently transferring forces from the turbojet engine to the wing structure, particularly in the event of a component failure, necessitating improved force transfer and enhanced safety.
Innovation Solution
The assembly includes a reactor mast with a primary structure and wing fixing means featuring multiple pivot connections, shackles, and lugs that ensure robust force transmission, even in the event of component failure, by utilizing multiple paths and redundant connections to distribute and absorb forces effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple pivot connections and shackles are used to ensure force transfer continuity, then reliability is improved, but device complexity increases
Solution Approach 1:
The fixing system is divided into multiple independent connection elements: pivot connections (first through seventh), shackles (first starboard shackle, first port shackle), and lugs (first fixing lug, starboard fixing lug, port fixing lug). Each segment can independently fail without compromising the entire force transfer system, ensuring continuity of force transmission even when individual components fail.
2Reliability
If redundant connections are implemented to distribute forces, then safety is enhanced, but manufacturing complexity increases
Solution Approach 1:
Different connection elements are positioned at specific locations with distinct functions: pivot connections are arranged to handle specific force vectors, lugs are positioned to distribute loads across the reactor mast structure, and shackles provide redundant mechanical linkages. Each local element is optimized for its specific role in the force distribution network, allowing standardized manufacturing of individual components while achieving complex overall safety performance.
Data Source
AI summary
An assembly comprising a wing and a reactor mast fixed to the wing. The primary structure of the reactor mast comprises a first fixing lug and starboard and port fixing lugs, the wing carries a first fitting and starboard and port fittings, the fixing lugs being joined to the fittings with shackles having three fixing points, and the first lug being fixed to the first fitting.