Aircraft Wing-Fuselage Assembly Coordinate Alignment System
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Solution Overview
Problem
The complex and challenging process of accurately assembling large and heavy aircraft components, such as the wing and fuselage, due to their size and weight, which complicates the alignment and assembly required for stability.
Innovation Solution
An aircraft assembly system that includes a jig unit coupled to the wing, a transfer unit to move the wing towards the fuselage, a position adjusting unit to precisely align the wing, and a measuring unit to set and align the coordinate systems of the fuselage and wing, allowing for accurate alignment and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple supports are used to align the wing and fuselage, then the assembly can be performed, but the system complexity increases due to many variables from supports moving in respective degrees of freedom
Solution Approach 1:
The alignment system is divided into independent modular units: a position adjusting unit with multiple degree of freedom mechanisms, a separate measuring unit for coordinate system establishment, and a jig unit for wing support. Each module performs a specific function, reducing overall system complexity while maintaining alignment capability.
Solution Approach 2:
A coordinate system transformation mechanism serves as an intermediary between the measuring unit and the position adjusting unit. The measuring unit establishes coordinate systems on the wing and fuselage, and the transformation mechanism translates these measurements into precise position adjustments, simplifying the control architecture.
2Device complexity
If the wing is directly assembled to the fuselage without precise coordinate alignment, then the assembly process is simpler, but the assembly precision and aircraft stability deteriorate
Solution Approach 1:
The measuring unit establishes coordinate systems on both the wing and fuselage before the actual assembly operation. This preliminary measurement and coordinate system setup enables precise position calculation and pre-planned adjustment, ensuring high alignment precision while keeping the physical assembly process simple.
Solution Approach 2:
The measuring unit continuously monitors the positions of the wing and fuselage, providing real-time feedback to the position adjusting unit. This feedback loop enables dynamic adjustment during the assembly process, maintaining high precision without requiring overly complex mechanical alignment mechanisms.
3Productivity
If manual alignment methods are used for the heavy wing and fuselage, then the equipment requirement is reduced, but the alignment accuracy and assembly time deteriorate
Solution Approach 1:
The system replaces manual mechanical alignment methods with an automated measurement and control system. The measuring unit uses optical or electronic measurement techniques to determine positions, and the position adjusting unit automatically executes alignment adjustments, achieving high precision and speed without heavy manual intervention.
Solution Approach 2:
The system transforms the alignment problem from a mechanical positioning task to a parameter-based control task. By measuring and calculating coordinate system parameters (positions, orientations), the system determines the exact adjustments needed, enabling precise and rapid alignment through controlled parameter changes rather than trial-and-error mechanical adjustments.
Data Source
AI summary
In an assembly system of an aircraft including a fuselage and a wing, the aircraft assembly system may include: a jig unit coupled to the wing to move integrally with the wing; a transfer unit connected to the jig unit and transferring the wing toward the fuselage; a position adjusting unit detachably connected to the jig unit and adjusting a position of the jig unit; and a measuring unit configured for measuring positions of the fuselage and the wing, wherein the fuselage may be relatively fixed to the movement of the wing, wherein the measuring unit may be configured to set a fuselage coordinate system and a wing coordinate system for the fuselage and the wing, respectively, wherein the position adjusting unit may be configured to move the jig unit so that the wing coordinate system coincides with the fuselage coordinate system.