Aircraft Pylon Front Engine Mount Direct Reinforcement Connection
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Solution Overview
Problem
The existing aircraft propulsion assemblies require complex and bulky transverse beams for connecting the engine mount to the primary structure of the pylon, which are difficult to position and require long machining processes, increasing production costs and on-board mass.
Innovation Solution
The front engine mount directly connects to the primary structure's front transverse reinforcement via extensions and brackets, eliminating the need for a transverse beam, and incorporates safety connection pins for secure attachment, allowing for simpler assembly and reduced mass.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex transverse beams are used to connect the engine mount to the primary structure, then connection strength and reliability are improved, but device complexity and on-board mass increase
Solution Approach 1:
The patent merges the transverse beam function directly into the front transverse reinforcement of the primary structure. The links of the front engine mount are directly connected to the front transverse reinforcement, eliminating the need for a separate transverse beam component. This integration maintains connection reliability while significantly reducing assembly complexity and the number of parts.
Solution Approach 2:
The patent extracts and eliminates the unnecessary transverse beam from the assembly. By directly connecting the links to the front transverse reinforcement, the design removes the intermediate transverse beam component, thereby simplifying the overall structure while maintaining the necessary connection functionality.
2Strength
If complex transverse beams are used for connection, then structural strength is improved, but manufacturing time and production costs increase
Solution Approach 1:
The transverse beam functionality is merged into the existing front transverse reinforcement structure. This eliminates the need for separate manufacturing and assembly of a transverse beam, reducing production time and costs while maintaining structural strength through the integrated design.
3Reliability
If transverse beams with connection elements are used, then connection security is improved, but on-board mass increases
Solution Approach 1:
The patent extracts and removes the heavy transverse beam component from the assembly. By directly connecting the links to the front transverse reinforcement, the design eliminates unnecessary mass while maintaining connection security through the streamlined structure.
Data Source
AI summary
A propulsion assembly including a primary structure of a pylon having right and left extensions projecting with respect to right and left lateral panels of the primary structure and also right and left brackets, each having a first flank connected to the right or left lateral panel of the primary structure and a second flank pressed against the right or left extension, a front engine mount having first and second links, each connected to an engine and directly to the front transverse reinforcement by a first or second reinforcement connection pin passing through the right or left extension and the second flank of the right or left bracket.