Three-Part Beam for Aircraft Engine Attachment
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Solution Overview
Problem
The existing front engine attachment systems for aircraft engines are complex and time-consuming to manufacture due to their solid beam structure, which requires lengthy and intricate machining processes.
Innovation Solution
A front engine attachment system with a beam composed of three separate plates (front, intermediate, and rear plates) that are easier to produce and assemble, featuring articulated link rods and backup safety fastening points to ensure load distribution and redundancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a solid beam structure is used for the front engine attachment, then the structural strength and reliability are improved, but the manufacturing complexity and production time increase significantly
Solution Approach 1:
The solid beam structure is divided into three separate plates (front plate, intermediate plate, rear plate) that are assembled together. This segmentation reduces manufacturing complexity by allowing each plate to be produced independently through simpler processes, while the assembled structure maintains the required structural strength for engine attachment.
2Stability of the object's composition
If a solid beam structure is used for the front engine attachment, then the structural integrity is improved, but the production time and manufacturing cost increase
Solution Approach 1:
The beam is segmented into three plates that can be manufactured simultaneously through simpler, faster processes. The intermediate plate with clevises is produced separately and assembled with the front and rear plates, significantly reducing total production time while maintaining structural integrity through proper fastening and load path design.
3Force
If a solid beam structure is used for the front engine attachment, then the load-bearing capacity is improved, but the ease of manufacture deteriorates
Solution Approach 1:
The load-bearing structure is segmented into three plates that can be manufactured using simpler, more accessible machining processes. The intermediate plate incorporates clevises for link rod attachment, and the assembly maintains full load-bearing capacity through direct load transfer paths from the engine pylon through the plates to the engine.
Solution Approach 2:
The intermediate plate acts as an intermediary component that connects the front and rear plates while providing mounting points for the link rods. This intermediate element facilitates easier manufacture by breaking down the complex solid beam into manageable parts that can be produced and assembled independently.
Data Source
AI summary
A front engine attachment system for an engine of an aircraft, the front engine attachment system having an engine pylon having, in its front part, a frontal part having an attachment wall with a front face, and a front engine attachment having a beam, which is fastened to the front face and to which a link rod is fastened on either side of a median plane. Each link rod is fastened to the beam in an articulated manner by at least one first connection point and is configured to be fastened to the engine in an articulated manner by at least one second connection point. The beam is made up of front, intermediate and rear plates. The rear plate is pressed against the front face. The front plate is disposed in front of the rear plate. The intermediate plate is disposed between the front plate and the rear plate.