Integrally Formed Pylon Mount Beam for Gas Turbine Engine
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Solution Overview
Problem
The existing mounting arrangements for gas turbine engines using multiple bolted joints are cumbersome, costly, and labor-intensive, posing challenges in terms of weight, material cost, and assembly efficiency.
Innovation Solution
The integration of front and rear engine mount beams with respective pylon mount structures forms a single-piece component, eliminating the need for multiple bolted joints by unitarily forming the beams with the pylon mount structures, thereby simplifying the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If multiple bolted joints are used to attach engine mount beams to pylon mounting structures, then the connection strength and reliability are improved, but the weight, material cost, and assembly complexity increase
Solution Approach 1:
The engine mount beam and pylon mounting structure are merged into a single integrally formed component. The beam includes a forward portion and an aft portion that are unitarily formed with the pylon mounting structures, eliminating the need for separate bolted connections while maintaining structural strength and reducing weight.
2Reliability
If multiple bolted joints are used to attach engine mount beams to pylon mounting structures, then the connection reliability is improved, but the assembly time and labor cost increase
Solution Approach 1:
The engine mount beam and pylon mounting structures are integrally formed as one piece, eliminating multiple assembly steps involving bolts and fasteners. This reduces assembly time and labor cost while maintaining connection reliability through the continuous material structure.
3Strength
If multiple bolted joints are used to attach engine mount beams to pylon mounting structures, then the structural integrity is improved, but the manufacturing cost and material usage increase
Solution Approach 1:
The engine mount beam and pylon mounting structures are produced as a single integrally formed component, reducing the total quantity of materials required by eliminating redundant fasteners and connection hardware. The continuous material structure maintains structural integrity while reducing overall material usage.
4Strength
If multiple bolted joints are used to attach engine mount beams to pylon mounting structures, then the connection strength is improved, but the device complexity increases
Solution Approach 1:
The engine mount beam and pylon mounting structures are integrally formed into a simplified single-piece component. This eliminates the complexity of multiple separate parts, bolts, and assembly procedures while maintaining connection strength through the continuous material structure.
Data Source
Figure 1
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AI summary
A mounting arrangement for a gas turbine engine includes a pylon mount structure that has a fore mount portion (40) and an aft mount portion (42). A first engine mount beam (50) is integrally formed with the fore mount portion (40) as a single-piece component, and a second engine mount beam (52) is integrally formed with the aft mount portion (42) as a single-piece component. The first engine mount beam is attachable to the engine case (26) at a fore attachment interface, and the second engine mount beam (52) is attached to the engine case (26) at an aft attachment interface.