Aircraft Landing Gear Reinforcing Web Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional landing gear structures are heavy due to their material distribution, which affects their mechanical resistance and weight, making them inefficient for aircraft applications.
Innovation Solution
The landing gear design incorporates structural parts with at least two connection interfaces and sails that extend facing each other to transmit landing forces, optimizing material distribution for reduced mass while maintaining mechanical resistance, achieved through a tubular body with laterally extending sails and a rib structure for stiffness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional landing gear structures use dense material distribution for mechanical resistance, then strength is improved, but weight increases
Solution Approach 1:
The patent applies local quality by creating a non-uniform material distribution within the structural part. The cellular structure provides different material densities in different regions - denser areas where strength is needed and lighter areas where less structural support is required. This allows the structure to achieve necessary mechanical resistance while minimizing overall weight through optimized local material placement.
Solution Approach 2:
The patent changes the physical parameters of the structural part by introducing a cellular internal structure with varying cell sizes, shapes, and wall thicknesses. This transforms the homogeneous material distribution into a heterogeneous one, where the cellular parameters (cell size, wall thickness, density) are optimized to provide the required mechanical properties at reduced weight compared to traditional solid structures.
2Strength
If traditional landing gear structures use solid material distribution, then mechanical resistance is improved, but mass increases
Solution Approach 1:
The patent employs porous materials by creating a cellular structure with voids and cavities within the structural part. This porous architecture reduces the quantity of material needed while maintaining structural integrity through the strategic arrangement of cell walls and struts. The porous structure provides sufficient mechanical resistance for landing gear applications while significantly reducing mass compared to solid material distribution.
Solution Approach 2:
The patent applies segmentation by dividing the continuous solid material into discrete cellular units. The structural part is segmented into multiple cells with walls and struts, creating a modular internal architecture. This segmentation allows the material to be distributed more efficiently, providing necessary strength where needed while reducing overall material quantity and mass compared to traditional solid structures.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Landing gear comprising structural parts arranged to connect a wheel to a structure of an aircraft and to withstand and dampen landing forces, each structural part comprising at least two interfaces for connection to at least one other of the structural parts or to the structure of the aircraft, at least one of the structural parts (1) comprising at least two webs (3, 4) which extend so as to face one another while delimiting between them a free space and which connect the two interfaces (5) in order to transmit the forces from the one to the other.