Aircraft Wing High-Lift Assembly Alignment With Dual Landing Surfaces
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Solution Overview
Problem
The challenge of achieving precise alignment and modular construction of a high lift assembly on an aircraft wing, while accommodating manufacturing tolerances, is hindered by the need for high precision in connecting the connection assembly to the wing box, which complicates the assembly process and prevents flexible adjustment of component orientation.
Innovation Solution
A bracket design with perpendicularly oriented landing surfaces and varying connection point widths, allowing for guided alignment and flexible attachment, enabling modular construction and accurate orientation of the high lift assembly relative to the main wing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the connection assembly is connected to the wing box with high precision requirements, then the alignment and orientation of the high lift assembly is accurate, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The bracket serves as an intermediary component between the connection assembly and the wing box. It includes a positioning feature with a positioning surface that contacts a reference surface on the wing box, and a connection feature that connects to the connection assembly. This intermediary bracket absorbs alignment tolerances and simplifies the assembly process while maintaining accurate orientation of the high lift assembly relative to the main wing.
2Manufacturing precision
If the connection assembly is integrated with the wing box during assembly, then the alignment is precise, but modular construction and repair flexibility are reduced
Solution Approach 1:
The connection system is segmented into three separate components: the wing box, the bracket, and the connection assembly. The bracket is designed as a separate module that can be pre-assembled with the connection assembly, then installed on the wing box. This segmentation enables modular construction where individual components can be manufactured separately, assembled in different locations, and replaced independently for repair or maintenance without grounding the entire aircraft.
3Adaptability or versatility
If the connection assembly is assembled separately from the wing box, then modular construction is enabled, but alignment precision and orientation accuracy are compromised
Solution Approach 1:
The bracket is designed with a positioning feature that performs preliminary alignment before final connection. The positioning surface on the bracket contacts the reference surface on the wing box to establish accurate positioning and orientation. This preliminary positioning action ensures that when the connection assembly is subsequently connected to the bracket, the high lift assembly is correctly oriented relative to the main wing, even though the components were assembled separately in different locations.
Data Source
Figure 1
Figure 2~3
Figure 4A~4C
AI summary
Described is a wing (3) for an aircraft (1), a method of connecting a high lift assembly to the wing of an aircraft, and an aircraft comprising a described wing. The wing comprises a main wing (5), a bracket and a high lift assembly. The high lift assembly comprises a high lift body comprising a high lift structure and a connection assembly (209) comprising a slat track and a roller bearing that movably connects the high lift body (12) to the main wing (5), such that the high lift body is movable between a retracted position and at least one extended position, and the connection assembly (209) comprising a plurality of connection points for connection to a main wing (5). The bracket connects the high lift assembly to the main wing and comprises a plurality of bracket connection points for connecting the high lift assembly to the main wing. The high lift assembly comprises a plurality of high lift connection points, each high lift connection point corresponding to a connection point of the bracket, and each high lift connection point and bracket connection point are connected by a connector. The bracket comprises a first and a second flange, wherein the plurality of bracket connection points are located on the first and second flange, and each of the first and second flange comprise a respective first and second landing surface configured to abut a surface of the connection assembly (209), the first landing surface being oriented perpendicular to the second landing surface.